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windows-nt/Source/XPSP1/NT/enduser/netmeeting/as/cpi32/host.cpp
CryptoAlgo Inc b3cac27891 Add source files
2020-09-26 16:20:57 +08:00

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#include "precomp.h"
//
// HOST.CPP
// Hosting, local and remote
//
// Copyright(c) Microsoft 1997-
//
#define MLZ_FILE_ZONE ZONE_CORE
//
// HET_Init()
//
// Initialization for hosting
// * window tracking
// * capabilities
// * host UI
//
BOOL HET_Init(void)
{
BOOL rc = FALSE;
int property;
UINT i;
LOGFONT lf;
DebugEntry(HET_Init);
//
// Initialize T.128 capabilities, whether we can host or not.
//
ZeroMemory(&g_cpcLocalCaps, sizeof(g_cpcLocalCaps));
g_cpcLocalCaps.header.numCapabilities = PROTCAPS_COUNT;
// PROTCAPS_GENERAL
// Check for compression setting (useful to debug protocol)
// You can set CT_PKZIP (1) or none (0) instead of persistent PKZIP,
// which is the default.
//
g_cpcLocalCaps.general.header.capID = CAPS_ID_GENERAL;
g_cpcLocalCaps.general.header.capSize = sizeof(g_cpcLocalCaps.general);
COM_ReadProfInt(DBG_INI_SECTION_NAME, GDC_INI_COMPRESSION,
GCT_DEFAULT, &property);
g_cpcLocalCaps.general.genCompressionType = (TSHR_UINT16)property;
g_cpcLocalCaps.general.genCompressionLevel = CAPS_GEN_COMPRESSION_LEVEL_1;
g_cpcLocalCaps.general.OS = CAPS_WINDOWS;
g_cpcLocalCaps.general.OSVersion = (g_asWin95 ? CAPS_WINDOWS_95 : CAPS_WINDOWS_NT);
g_cpcLocalCaps.general.typeFlags = 0;
if (g_asOptions & AS_SERVICE)
{
g_cpcLocalCaps.general.typeFlags |= AS_SERVICE;
}
if (g_asOptions & AS_UNATTENDED)
{
g_cpcLocalCaps.general.typeFlags |= AS_UNATTENDED;
}
g_cpcLocalCaps.general.version = CAPS_VERSION_CURRENT;
g_cpcLocalCaps.general.supportsDOS6Compression = CAPS_UNSUPPORTED;
g_cpcLocalCaps.general.supportsCapsUpdate = CAPS_SUPPORTED;
g_cpcLocalCaps.general.supportsRemoteUnshare = CAPS_UNSUPPORTED;
//
// PROTCAPS_SCREEN
//
g_cpcLocalCaps.screen.header.capID = CAPS_ID_SCREEN;
g_cpcLocalCaps.screen.header.capSize = sizeof(g_cpcLocalCaps.screen);
g_cpcLocalCaps.screen.capsSupports1BPP = CAPS_UNSUPPORTED;
g_cpcLocalCaps.screen.capsSupports4BPP = CAPS_SUPPORTED;
g_cpcLocalCaps.screen.capsSupports8BPP = CAPS_SUPPORTED;
g_cpcLocalCaps.screen.capsSupports24BPP = CAPS_SUPPORTED;
g_cpcLocalCaps.screen.capsScreenWidth = (TSHR_UINT16)GetSystemMetrics(SM_CXSCREEN);
g_cpcLocalCaps.screen.capsScreenHeight = (TSHR_UINT16)GetSystemMetrics(SM_CYSCREEN);
g_cpcLocalCaps.screen.capsSupportsDesktopResize = CAPS_SUPPORTED;
//
// Set up the V1 and/or V2 Bitmap Compression capabilities. For the
// V2.0 protocol, both are supported by default (supporting V1
// compression allows for negotiation down to V1 protocol systems), but
// can be overidden in the INI file.
//
g_cpcLocalCaps.screen.capsSupportsV1Compression = CAPS_UNSUPPORTED;
g_cpcLocalCaps.screen.capsSupportsV2Compression = CAPS_SUPPORTED;
g_cpcLocalCaps.screen.capsBPP = (TSHR_UINT16)g_usrScreenBPP;
// PROTCAPS_SC
g_cpcLocalCaps.share.header.capID = CAPS_ID_SC;
g_cpcLocalCaps.share.header.capSize = sizeof(g_cpcLocalCaps.share);
g_cpcLocalCaps.share.gccID = 0;
// PROTCAPS_CM
g_cpcLocalCaps.cursor.header.capID = CAPS_ID_CM;
g_cpcLocalCaps.cursor.header.capSize = sizeof(g_cpcLocalCaps.cursor);
g_cpcLocalCaps.cursor.capsSupportsColorCursors = CAPS_SUPPORTED;
g_cpcLocalCaps.cursor.capsCursorCacheSize = TSHR_CM_CACHE_ENTRIES;
// PROTCAPS_PM
g_cpcLocalCaps.palette.header.capID = CAPS_ID_PM;
g_cpcLocalCaps.palette.header.capSize = sizeof(g_cpcLocalCaps.palette);
g_cpcLocalCaps.palette.capsColorTableCacheSize = TSHR_PM_CACHE_ENTRIES;
//
// PROTCAPS_BITMAPCACHE
//
g_cpcLocalCaps.bitmaps.header.capID = CAPS_ID_BITMAPCACHE;
g_cpcLocalCaps.bitmaps.header.capSize = sizeof(g_cpcLocalCaps.bitmaps);
//
// SEND BITMAP CACHE
//
// The cache is now more in line with what the display driver is doing.
// The memory size for medium/large is the same. But large bitmaps are
// 4x bigger, so there are 1/4 as many. The # of small bitmaps is the
// same as the # of medium bitmaps. Since small bitmaps are 1/4 the
// size, only 1/4 as much memory is used.
//
if (g_sbcEnabled)
{
UINT maxSendBPP;
ASSERT(g_asbcShuntBuffers[SBC_MEDIUM_TILE_INDEX]);
ASSERT(g_asbcShuntBuffers[SBC_LARGE_TILE_INDEX]);
g_cpcLocalCaps.bitmaps.sender.capsSmallCacheNumEntries =
(TSHR_UINT16)g_asbcShuntBuffers[SBC_MEDIUM_TILE_INDEX]->numEntries;
g_cpcLocalCaps.bitmaps.sender.capsMediumCacheNumEntries =
(TSHR_UINT16)g_asbcShuntBuffers[SBC_MEDIUM_TILE_INDEX]->numEntries;
g_cpcLocalCaps.bitmaps.sender.capsLargeCacheNumEntries =
(TSHR_UINT16)g_asbcShuntBuffers[SBC_LARGE_TILE_INDEX]->numEntries;
if (g_usrScreenBPP >= 24)
{
maxSendBPP = 24;
}
else
{
maxSendBPP = 8;
}
g_cpcLocalCaps.bitmaps.sender.capsSmallCacheCellSize =
MP_CACHE_CELLSIZE(MP_SMALL_TILE_WIDTH, MP_SMALL_TILE_WIDTH,
maxSendBPP);
g_cpcLocalCaps.bitmaps.sender.capsMediumCacheCellSize =
MP_CACHE_CELLSIZE(MP_MEDIUM_TILE_WIDTH, MP_MEDIUM_TILE_HEIGHT,
maxSendBPP);
g_cpcLocalCaps.bitmaps.sender.capsLargeCacheCellSize =
MP_CACHE_CELLSIZE(MP_LARGE_TILE_WIDTH, MP_LARGE_TILE_HEIGHT,
maxSendBPP);
}
else
{
//
// We can't use sizes of zero, 2.x nodes will fail if we do. But
// we can use a tiny number so they don't allocate huge hunks of
// memory for no reason. And 3.0 will treat '1' like '0'.
//
g_cpcLocalCaps.bitmaps.sender.capsSmallCacheNumEntries = 1;
g_cpcLocalCaps.bitmaps.sender.capsSmallCacheCellSize = 1;
g_cpcLocalCaps.bitmaps.sender.capsMediumCacheNumEntries = 1;
g_cpcLocalCaps.bitmaps.sender.capsMediumCacheCellSize = 1;
g_cpcLocalCaps.bitmaps.sender.capsLargeCacheNumEntries = 1;
g_cpcLocalCaps.bitmaps.sender.capsLargeCacheCellSize = 1;
}
TRACE_OUT(("SBC small cache: %d entries, size %d",
g_cpcLocalCaps.bitmaps.sender.capsSmallCacheNumEntries,
g_cpcLocalCaps.bitmaps.sender.capsSmallCacheCellSize));
TRACE_OUT(("SBC medium cache: %d entries, size %d",
g_cpcLocalCaps.bitmaps.sender.capsMediumCacheNumEntries,
g_cpcLocalCaps.bitmaps.sender.capsMediumCacheCellSize));
TRACE_OUT(("SBC large cache: %d entries, size %d",
g_cpcLocalCaps.bitmaps.sender.capsLargeCacheNumEntries,
g_cpcLocalCaps.bitmaps.sender.capsLargeCacheCellSize));
//
// RECEIVE caps are obsolete with 3.0; receivers simply look at the
// sender's attributes. So just fill in the MAX possible. 2.x remotes
// will take the min of themselves and everybody else's receiver caps.
//
g_cpcLocalCaps.bitmaps.receiver.capsSmallCacheNumEntries = 0x7FFF;
g_cpcLocalCaps.bitmaps.receiver.capsSmallCacheCellSize = 0x7FFF;
g_cpcLocalCaps.bitmaps.receiver.capsMediumCacheNumEntries = 0x7FFF;
g_cpcLocalCaps.bitmaps.receiver.capsMediumCacheCellSize = 0x7FFF;
g_cpcLocalCaps.bitmaps.receiver.capsLargeCacheNumEntries = 0x7FFF;
g_cpcLocalCaps.bitmaps.receiver.capsLargeCacheCellSize = 0x7FFF;
//
// PROTCAPS_ORDERS
//
g_cpcLocalCaps.orders.header.capID = CAPS_ID_ORDERS;
g_cpcLocalCaps.orders.header.capSize = sizeof(g_cpcLocalCaps.orders);
//
// Fill in the SaveBitmap capabilities.
//
g_cpcLocalCaps.orders.capsSaveBitmapSize = TSHR_SSI_BITMAP_SIZE;
g_cpcLocalCaps.orders.capsSaveBitmapXGranularity = TSHR_SSI_BITMAP_X_GRANULARITY;
g_cpcLocalCaps.orders.capsSaveBitmapYGranularity = TSHR_SSI_BITMAP_Y_GRANULARITY;
g_cpcLocalCaps.orders.capsSendSaveBitmapSize = g_cpcLocalCaps.orders.capsSaveBitmapSize;
g_cpcLocalCaps.orders.capsReceiveSaveBitmapSize = g_cpcLocalCaps.orders.capsSaveBitmapSize;
//
// We support
// * R20 Signatures (cell heights, better matching)
// * Aspect matching
// * Charset/code page matching
// * Baseline text orders
// * Em Heights
// * DeltaX arrays for simulation if font not on remote
//
//
// BOGUS LAURABU BUGBUG
//
// Baseline text orders not yet supported in Win95. But that's OK,
// we don't mark any orders we generate on that platform with
// NF_BASELINE, so they aren't treated as such.
//
g_cpcLocalCaps.orders.capsfFonts = CAPS_FONT_R20_SIGNATURE |
CAPS_FONT_ASPECT |
CAPS_FONT_CODEPAGE |
CAPS_FONT_ALLOW_BASELINE |
CAPS_FONT_EM_HEIGHT |
CAPS_FONT_OLD_NEED_X |
CAPS_FONT_NEED_X_SOMETIMES;
//
// Fill in which orders we support.
//
for (i = 0; i < ORD_NUM_LEVEL_1_ORDERS; i++)
{
//
// Order indices for desktop-scrolling and memblt variants are not
// to be negotiated by this mechanism... these currently consume
// 3 order indices which must be excluded from this negotiation.
//
if ( (i == ORD_RESERVED_INDEX ) ||
(i == ORD_MEMBLT_R2_INDEX ) ||
(i == ORD_UNUSED_INDEX ) ||
(i == ORD_MEM3BLT_R2_INDEX) )
{
continue;
}
g_cpcLocalCaps.orders.capsOrders[i] = ORD_LEVEL_1_ORDERS;
}
g_cpcLocalCaps.orders.capsMaxOrderlevel = ORD_LEVEL_1_ORDERS;
//
// Fill in encoding capabilities
//
//
// Keep the "encoding disabled" option, it's handy for using our
// protocol analyzer
//
COM_ReadProfInt(DBG_INI_SECTION_NAME, OE2_INI_2NDORDERENCODING,
CAPS_ENCODING_DEFAULT, &property);
g_cpcLocalCaps.orders.capsEncodingLevel = (TSHR_UINT16)property;
g_cpcLocalCaps.orders.capsfSendScroll = FALSE;
//
// Get the app and desktop icons, big and small
//
g_hetASIcon = LoadIcon(g_asInstance, MAKEINTRESOURCE(IDI_SHAREICON));
if (!g_hetASIcon)
{
ERROR_OUT(("HET_Init: Failed to load app icon"));
DC_QUIT;
}
g_hetDeskIcon = LoadIcon(g_asInstance, MAKEINTRESOURCE(IDI_DESKTOPICON));
if (!g_hetDeskIcon)
{
ERROR_OUT(("HET_Init: failed to load desktop icon"));
DC_QUIT;
}
// Get the small icon, created, that we paint on the window bar items
g_hetASIconSmall = (HICON)LoadImage(g_asInstance, MAKEINTRESOURCE(IDI_SHAREICON),
IMAGE_ICON, GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON),
LR_DEFAULTCOLOR);
if (!g_hetASIconSmall)
{
ERROR_OUT(("HET_Init: Failed to load app small icon"));
DC_QUIT;
}
g_hetDeskIconSmall = (HICON)LoadImage(g_asInstance, MAKEINTRESOURCE(IDI_DESKTOPICON),
IMAGE_ICON, GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON),
LR_DEFAULTCOLOR);
if (!g_hetDeskIconSmall)
{
ERROR_OUT(("HET_Init: Failed to load desktop small icon"));
DC_QUIT;
}
//
// Get the checkmark image
//
g_hetCheckBitmap = LoadBitmap(NULL, MAKEINTRESOURCE(OBM_CHECK));
if (!g_hetCheckBitmap)
{
ERROR_OUT(("HET_Init: Failed to load checkmark bitmap"));
DC_QUIT;
}
//
// Create a bolded font for shared items in the host list
//
GetObject(GetStockObject(DEFAULT_GUI_FONT), sizeof(lf), &lf);
lf.lfWeight += FW_LIGHT;
g_hetSharedFont = CreateFontIndirect(&lf);
if (!g_hetSharedFont)
{
ERROR_OUT(("HET_Init: Failed to create shared item font"));
DC_QUIT;
}
if (g_asCanHost && !(g_asPolicies & SHP_POLICY_NOSHARING))
{
HET_Clear();
//
// Create the host UI dialog.
//
ASSERT(!g_asSession.hwndHostUI);
ASSERT(!g_asSession.fHostUI);
ASSERT(!g_asSession.fHostUIFrozen);
g_asSession.hwndHostUI = CreateDialogParam(g_asInstance,
MAKEINTRESOURCE(IDD_HOSTUI), NULL, HostDlgProc, 0);
if (!g_asSession.hwndHostUI)
{
ERROR_OUT(("Failed to create hosting UI dialog"));
DC_QUIT;
}
}
rc = TRUE;
DC_EXIT_POINT:
DebugExitBOOL(HET_Init, rc);
return(rc);
}
//
// HET_Term()
//
// Cleanup hosting objects
//
void HET_Term(void)
{
DebugEntry(HET_Term);
if (g_asSession.hwndHostUI)
{
DestroyWindow(g_asSession.hwndHostUI);
g_asSession.hwndHostUI = NULL;
}
g_asSession.fHostUIFrozen = FALSE;
g_asSession.fHostUI = FALSE;
if (g_hetSharedFont != NULL)
{
DeleteFont(g_hetSharedFont);
g_hetSharedFont = NULL;
}
if (g_hetCheckBitmap != NULL)
{
DeleteBitmap(g_hetCheckBitmap);
g_hetCheckBitmap = NULL;
}
if (g_hetDeskIconSmall != NULL)
{
DestroyIcon(g_hetDeskIconSmall);
g_hetDeskIconSmall = NULL;
}
if (g_hetDeskIcon != NULL)
{
DestroyIcon(g_hetDeskIcon);
g_hetDeskIcon = NULL;
}
if (g_hetASIconSmall != NULL)
{
DestroyIcon(g_hetASIconSmall);
g_hetASIconSmall = NULL;
}
if (g_hetASIcon != NULL)
{
DestroyIcon(g_hetASIcon);
g_hetASIcon = NULL;
}
DebugExitVOID(HET_Term);
}
//
// HET_IsShellThread()
// Returns TRUE if thread is one of shell's special threads
//
BOOL HET_IsShellThread(DWORD threadID)
{
BOOL rc;
DebugEntry(HET_IsShellThread);
if ((threadID == GetWindowThreadProcessId(HET_GetShellDesktop(), NULL)) ||
(threadID == GetWindowThreadProcessId(HET_GetShellTray(), NULL)))
{
rc = TRUE;
}
else
{
rc = FALSE;
}
DebugExitBOOL(HET_IsShellThread, rc);
return(rc);
}
//
// HET_IsShellWindow()
// Returns TRUE if window is in same thread as tray or desktop
//
BOOL HET_IsShellWindow(HWND hwnd)
{
BOOL rc;
DWORD threadID;
DebugEntry(HET_IsShellWindow);
threadID = GetWindowThreadProcessId(hwnd, NULL);
rc = HET_IsShellThread(threadID);
DebugExitBOOL(HET_IsShellWindow, rc);
return(rc);
}
//
// HET_ShareApp()
// This shares an app. We have 3 types of sharing, only two
// of which are supported currently:
// (1) By process (normal)
// (2) By thread (ConsoleNT or possibly Explorer)
// (3) By window <??>
//
// For the first two types, we enumerate all top level windows and share
// them also.
//
void ASShare::HET_ShareApp
(
WPARAM uType,
LPARAM dwID
)
{
HET_SHARE_INFO si;
DebugEntry(ASShare::HET_ShareApp);
//
// If we're sharing the desktop, ignore this.
//
if (m_pasLocal->hetCount == HET_DESKTOPSHARED)
{
WARNING_OUT(("Can't share app; already sharing desktop"));
DC_QUIT;
}
si.cWnds = 0;
si.uType = (UINT)uType;
si.dwID = (DWORD)dwID;
//
// We need to get setup for sharing if we aren't hosting.
//
if (m_pasLocal->hetCount == 0)
{
if (!HETStartHosting(FALSE))
{
ERROR_OUT(("Can't start sharing"));
DC_QUIT;
}
}
if (uType == IAS_SHARE_BYWINDOW)
{
HETShareCallback((HWND)dwID, (LPARAM)&si);
}
else
{
EnumWindows(HETShareCallback, (LPARAM)&si);
}
if (!si.cWnds)
{
//
// Nothing happened. We couldn't find any top level windows.
//
if (m_pasLocal->hetCount == 0)
{
HETStopHosting(FALSE);
}
}
else
{
HETUpdateLocalCount(m_pasLocal->hetCount + si.cWnds);
}
DC_EXIT_POINT:
DebugExitVOID(HET_ShareApp);
}
//
// HETShareCallback()
//
// This is the enumerator callback from HETShareApp(). We look for windows
// matching the thread/process.
//
BOOL CALLBACK HETShareCallback
(
HWND hwnd,
LPARAM lParam
)
{
LPHET_SHARE_INFO lpsi = (LPHET_SHARE_INFO)lParam;
DWORD idProcess;
DWORD idThread;
UINT hostType;
char szClass[HET_CLASS_NAME_SIZE];
DebugEntry(HETShareCallback);
ASSERT(!IsBadWritePtr(lpsi, sizeof(HET_SHARE_INFO)));
//
// Does this window match?
//
idThread = GetWindowThreadProcessId(hwnd, &idProcess);
// NOTE: If the window is bogus now, dwThread/dwProcess will be zero,
// and will not match the ones passed in.
if (lpsi->uType == IAS_SHARE_BYPROCESS)
{
if (idProcess != lpsi->dwID)
{
DC_QUIT;
}
TRACE_OUT(("Found window 0x%08x on process 0x%08x", hwnd, idProcess));
}
else if (lpsi->uType == IAS_SHARE_BYTHREAD)
{
if (idThread != lpsi->dwID)
{
DC_QUIT;
}
TRACE_OUT(("Found window 0x%08x on thread 0x%08x", hwnd, idThread));
}
//
// Always skip special shell thread windows (the tray, the desktop, etc.)
//
if (HET_IsShellThread(idThread))
{
TRACE_OUT(("Skipping shell threads"));
DC_QUIT;
}
//
// Always skip menus and system tooltips, those are temporarily shared
// when shown then unshared when hidden. That's because USER creates
// global windows that move threads/processes as needed to use them.
//
// New menus being created are different, those never change task and
// are treating like other windows in a shared app.
//
if (!GetClassName(hwnd, szClass, sizeof(szClass)))
{
TRACE_OUT(("Can't get class name for window 0x%08x", hwnd));
DC_QUIT;
}
if (!lstrcmp(szClass, HET_MENU_CLASS))
{
TRACE_OUT(("Skipping menu popup window 0x%08x", hwnd));
DC_QUIT;
}
if (!lstrcmp(szClass, HET_TOOLTIPS98_CLASS) ||
!lstrcmp(szClass, HET_TOOLTIPSNT5_CLASS))
{
TRACE_OUT(("Skipping system tooltip %08lx", hwnd));
DC_QUIT;
}
if (HET_GetHosting(hwnd))
{
WARNING_OUT(("Window %08lx already shared", hwnd));
DC_QUIT;
}
hostType = HET_HOSTED_PERMANENT;
if (lpsi->uType == IAS_SHARE_BYPROCESS)
{
hostType |= HET_HOSTED_BYPROCESS;
}
else if (lpsi->uType == IAS_SHARE_BYTHREAD)
{
hostType |= HET_HOSTED_BYTHREAD;
}
else if (lpsi->uType == IAS_SHARE_BYWINDOW)
{
hostType |= HET_HOSTED_BYWINDOW;
}
//
// See if we can share it. This returns TRUE if success.
//
if (OSI_ShareWindow(hwnd, hostType, TRUE, FALSE))
{
lpsi->cWnds++;
}
DC_EXIT_POINT:
DebugExitBOOL(HET_ShareCallback, TRUE);
return(TRUE);
}
//
// HET_UnshareApp()
// This unshares an app. We have 3 types of sharing, only two
// of which are supported currently:
// (1) By process (normal)
// (2) By thread (ConsoleNT or possibly Explorer)
// (3) By window (temporary)
//
// For the first two types, we enumerate all top level windows and share
// them also.
//
void ASShare::HET_UnshareApp
(
WPARAM uType,
LPARAM dwID
)
{
HET_SHARE_INFO si;
DebugEntry(ASShare::HET_UnshareApp);
//
// If we aren't sharing apps (not sharing anything or sharing the
// dekstop), ignore this.
//
if ((m_pasLocal->hetCount == 0) || (m_pasLocal->hetCount == HET_DESKTOPSHARED))
{
WARNING_OUT(("Can't unshare app; not sharing any"));
DC_QUIT;
}
si.cWnds = 0;
si.uType = (UINT)uType;
si.dwID = (DWORD)dwID;
if (uType == IAS_SHARE_BYWINDOW)
{
//
// No enumeration, just this window.
//
HETUnshareCallback((HWND)dwID, (LPARAM)&si);
}
else
{
//
// Stop sharing all windows in it.
//
EnumWindows(HETUnshareCallback, (LPARAM)&si);
}
if (si.cWnds)
{
HETUpdateLocalCount(m_pasLocal->hetCount - si.cWnds);
}
DC_EXIT_POINT:
DebugExitVOID(ASShare::HET_UnshareApp);
}
//
// HETUnshareCallback()
//
// This is the enumerator callback from HET_UnshareApp(). We look for windows
// matching the thread/process. In this case, we don't care about menus
// or explorer windows, since we assume that, from the time we shared and it
// was set up properly, the window/task tracking code did the right thing.
// If not, we'll wipe it out here anyway.
//
BOOL CALLBACK HETUnshareCallback
(
HWND hwnd,
LPARAM lParam
)
{
LPHET_SHARE_INFO lpsi = (LPHET_SHARE_INFO)lParam;
DWORD dwProcess;
DWORD dwThread;
DebugEntry(HETUnshareCallback);
ASSERT(!IsBadWritePtr(lpsi, sizeof(HET_SHARE_INFO)));
//
// Does this window match? If by window, always.
//
if (lpsi->uType != IAS_SHARE_BYWINDOW)
{
dwThread = GetWindowThreadProcessId(hwnd, &dwProcess);
// NOTE: If the window is bogus now, dwThread/dwProcess will be zero,
// and will not match the ones passed in.
if (lpsi->uType == IAS_SHARE_BYPROCESS)
{
if (dwProcess != lpsi->dwID)
{
DC_QUIT;
}
TRACE_OUT(("Found window 0x%08x on process 0x%08x", hwnd, dwProcess));
}
else if (lpsi->uType == IAS_SHARE_BYTHREAD)
{
if (dwThread != lpsi->dwID)
{
DC_QUIT;
}
TRACE_OUT(("Found window 0x%08x on thread 0x%08x", hwnd, dwThread));
}
}
//
// This returns TRUE if we unshared a shared window.
//
if (OSI_UnshareWindow(hwnd, FALSE))
{
lpsi->cWnds++;
}
DC_EXIT_POINT:
DebugExitBOOL(HETUnshareCallback, TRUE);
return(TRUE);
}
//
// HET_ShareDesktop()
//
void ASShare::HET_ShareDesktop(void)
{
ASPerson * pasT;
DebugEntry(ASShare:HET_ShareDesktop);
//
// If we're sharing apps, ignore this.
//
if (m_pasLocal->hetCount != 0)
{
WARNING_OUT(("Ignoring share desktop request, sharing apps"));
DC_QUIT;
}
TRACE_OUT(("HET_ShareDesktop: starting share"));
if (!HETStartHosting(TRUE))
{
ERROR_OUT(("HET_ShareDesktop cannot start sharing desktop"));
DC_QUIT;
}
//
// Update the count of hosted entities (ie user-hosted windows)
//
HETUpdateLocalCount(HET_DESKTOPSHARED);
//
// Get the desktop(s) repainted if anybody's viewing it.
//
ASSERT(m_pHost);
m_pHost->HET_RepaintAll();
DC_EXIT_POINT:
DebugExitVOID(ASShare::HET_ShareDesktop);
}
//
// HET_UnshareAll()
// Unshares everything including the desktop. If we had been sharing
// apps before, we will unshare them all.
//
void ASShare::HET_UnshareAll(void)
{
DebugEntry(ASShare::HET_UnshareAll);
if (m_pasLocal->hetCount != 0)
{
HETUpdateLocalCount(0);
}
DebugExitVOID(ASShare::HET_UnshareAll);
}
//
// HET_PartyJoiningShare()
//
BOOL ASShare::HET_PartyJoiningShare(ASPerson * pasPerson)
{
BOOL rc = TRUE;
DebugEntry(ASShare::HET_PartyJoiningShare);
HET_CalcViewers(NULL);
DebugExitBOOL(ASShare::HET_PartyJoiningShare, rc);
return(rc);
}
//
// HET_PartyLeftShare()
//
void ASShare::HET_PartyLeftShare(ASPerson * pasPerson)
{
DebugEntry(ASShare::HET_PartyLeftShare);
// This guy is leaving the share, cleanup if he was sharing.
ValidatePerson(pasPerson);
if (pasPerson->hetCount != 0)
{
// This person is hosting
if (pasPerson == m_pasLocal)
{
HETUpdateLocalCount(0);
}
else
{
HETUpdateRemoteCount(pasPerson, 0);
}
}
//
// If we're hosting, stop viewing if this is the last person in the share.
//
HET_CalcViewers(pasPerson);
DebugExitVOID(ASShare::HET_PartyLeftShare);
}
//
// HET_CalcViewers()
//
// If we or a remote is viewing our shared stuff, then we must accumulate
// graphic output. If not, don't other, but keep the app tracked as necessary.
//
// This is called when we start to host, when somebody joins, or somebody
// leaves the conference.
//
void ASShare::HET_CalcViewers(ASPerson * pasLeaving)
{
BOOL fViewers;
DebugEntry(ASShare::HET_CalcViewers);
fViewers = FALSE;
if (m_pHost)
{
if (m_scfViewSelf)
{
fViewers = TRUE;
}
else if (!pasLeaving)
{
//
// Nobody is leaving, so just check if anybody else is in the
// share.
//
if (m_pasLocal->pasNext)
{
fViewers = TRUE;
}
}
else if (pasLeaving->pasNext || (m_pasLocal->pasNext != pasLeaving))
{
//
// Sombody is leaving.
// The person leaving isn't the only other one besides us in the
// share, since there are others after it or before it in the
// members linked list.
//
fViewers = TRUE;
}
}
if (fViewers != m_hetViewers)
{
HET_VIEWER viewer;
m_hetViewers = fViewers;
viewer.viewersPresent = fViewers;
OSI_FunctionRequest(HET_ESC_VIEWER, (LPOSI_ESCAPE_HEADER)&viewer,
sizeof(viewer));
}
DebugExitVOID(ASShare::HET_CalcViewers);
}
//
// HET_ReceivedPacket()
//
void ASShare::HET_ReceivedPacket
(
ASPerson * pasPerson,
PS20DATAPACKET pPacket
)
{
PHETPACKET pHETPacket;
DebugEntry(ASShare:;HET_ReceivedPacket);
ValidatePerson(pasPerson);
pHETPacket = (PHETPACKET)pPacket;
switch (pHETPacket->msg)
{
case HET_MSG_NUMHOSTED:
HETUpdateRemoteCount(pasPerson, pHETPacket->hostState);
break;
default:
ERROR_OUT(("Unknown HET packet type %u from [%d]", pHETPacket->msg,
pasPerson->mcsID));
break;
}
DebugExitVOID(ASShare::HET_ReceivedPacket);
}
//
// HET_SyncCommon()
//
// Called when somebody joins a share, after it is fully joined. We repaint
// all shared windows and send the current hosted top-level count.
//
// Also called when sharing, and somebody joins later.
//
// NOTE that some of the resets don't do anything when are just starting to
// share. But all are quick and benign.
//
void ASHost::HET_SyncCommon(void)
{
OSI_ESCAPE_HEADER osi;
DebugEntry(ASHost::HET_SyncCommon);
m_upfSyncTokenRequired = TRUE;
BA_SyncOutgoing();
OE2_SyncOutgoing(); // To reset order encoding
OA_SyncOutgoing(); // To clear pending orders
SBC_SyncOutgoing(); // To clear bitmap cache
PM_SyncOutgoing(); // To clear palette cache
SSI_SyncOutgoing(); // To reset savebits orders
SWL_SyncOutgoing(); // To reset shared window list
AWC_SyncOutgoing(); // To send active window
CM_SyncOutgoing(); // To send cursor shape/pos
//
// Tell the driver we are syncing
//
OSI_FunctionRequest(OSI_ESC_SYNC_NOW, &osi, sizeof(osi));
DebugExitVOID(ASHost::HET_SyncCommon);
}
//
// HET_SyncAlreadyHosting()
// Called in a sync when we are already hosting and somebody joins call
//
void ASHost::HET_SyncAlreadyHosting(void)
{
DebugEntry(ASHost::HET_SyncAlreadyHosting);
HET_RepaintAll();
// Send out the current hosted count
m_pShare->m_hetRetrySendState = TRUE;
DebugExitVOID(ASHost::HET_SyncAlreadyHosting);
}
//
// HET_RepaintAll()
//
// Repaints all shared stuff if there's at least two people in the share...
//
void ASHost::HET_RepaintAll(void)
{
DebugEntry(ASHost::HET_RepaintAll);
ASSERT(m_pShare);
ASSERT(m_pShare->m_pasLocal);
if (m_pShare->m_hetViewers)
{
//
// Only repaint if somebody's viewing
//
if (m_pShare->m_pasLocal->hetCount == HET_DESKTOPSHARED)
{
// Desktop sharing, so repaint desktop(s)
USR_RepaintWindow(NULL);
OSI_RepaintDesktop(); //special repaint for winlogon desktop
}
else
{
// App sharing, so repaint shared apps
EnumWindows(HETRepaintWindow, (LPARAM)m_pShare);
}
}
DebugExitVOID(ASHost::HET_RepaintAll);
}
//
// HET_Periodic()
//
void ASShare::HET_Periodic(void)
{
DebugEntry(ASShare::HET_Periodic);
if (m_hetRetrySendState)
{
TRACE_OUT(( "Retry sending hosted count"));
HETSendLocalCount();
}
DebugExitVOID(ASShare::HET_Periodic);
}
//
// HET_WindowIsHosted - see het.h
//
BOOL ASShare::HET_WindowIsHosted(HWND hwnd)
{
BOOL rc = FALSE;
HWND hwndParent;
DebugEntry(ASShare::HET_WindowIsHosted);
//
// Desktop sharing: everything is shared
//
if (m_pasLocal->hetCount == HET_DESKTOPSHARED)
{
rc = TRUE;
DC_QUIT;
}
if (!hwnd)
{
TRACE_OUT(("NULL window passed to HET_WindowIsHosted"));
DC_QUIT;
}
//
// Walk up to the top level window this one is part of
//
while (GetWindowLong(hwnd, GWL_STYLE) & WS_CHILD)
{
hwndParent = GetParent(hwnd);
if (hwndParent == GetDesktopWindow())
break;
hwnd = hwndParent;
}
rc = (BOOL)HET_GetHosting(hwnd);
DC_EXIT_POINT:
DebugExitBOOL(ASShare::HET_WindowIsHosted, rc);
return(rc);
}
//
// HET_HandleNewTopLevel()
// Called when a shared top level window is shown or hidden. We update
// our local top level count.
//
void ASShare::HET_HandleNewTopLevel(BOOL fShown)
{
DebugEntry(ASShare::HET_HandleNewTopLevel);
//
// If we aren't sharing any apps (not sharing at all or sharing the
// desktop), ignore this.
//
if ((m_pasLocal->hetCount == 0) || (m_pasLocal->hetCount == HET_DESKTOPSHARED))
{
WARNING_OUT(("Ignoring new hosted notification; count is 0x%04x",
m_pasLocal->hetCount));
DC_QUIT;
}
if (fShown)
HETUpdateLocalCount(m_pasLocal->hetCount + 1);
else
HETUpdateLocalCount(m_pasLocal->hetCount - 1);
DC_EXIT_POINT:
DebugExitVOID(ASShare::HET_HandleNewTopLevel);
}
//
// HET_HandleRecountTopLevel()
// Called when a massive change in the top level visible count occurs, so
// that we can just set the new total at once, rather than handle
// individual inc/dec messages.
//
void ASShare::HET_HandleRecountTopLevel(UINT uNewCount)
{
DebugEntry(ASShare::HET_HandleRecountTopLevel);
//
// If we aren't sharing any apps (not sharing at all or sharing the
// desktop), ignore this.
//
if ((m_pasLocal->hetCount == 0) || (m_pasLocal->hetCount == HET_DESKTOPSHARED))
{
WARNING_OUT(("Ignoring new hosted notification; count is 0x%04x",
m_pasLocal->hetCount));
DC_QUIT;
}
HETUpdateLocalCount(uNewCount);
DC_EXIT_POINT:
DebugExitVOID(ASShare::HET_HandleRecountTopLevel);
}
//
// HETStartHosting()
//
// Called when we are about to begin sharing windows. fDesktop is TRUE if
// we are sharing the entire desktop, FALSE if just individual windows.
//
BOOL ASShare::HETStartHosting(BOOL fDesktop)
{
BOOL rc = FALSE;
DebugEntry(ASShare::HETStartHosting);
//
// Create the hosting object
//
ASSERT(!m_pHost);
m_pHost = new ASHost;
if (!m_pHost)
{
ERROR_OUT(("HETStartHosting: couldn't create m_pHost"));
DC_QUIT;
}
ZeroMemory(m_pHost, sizeof(*(m_pHost)));
SET_STAMP(m_pHost, HOST);
//
// Init hosting
//
if (!m_pHost->HET_HostStarting(this))
{
ERROR_OUT(("Failed to init hosting for local person"));
DC_QUIT;
}
//
// Start tracking graphics/windows
//
if (fDesktop)
{
HET_SHARE_DESKTOP hdr;
//
// Shortcut directly to display driver. No need to track windows
// since everything will be shared.
//
if (!OSI_FunctionRequest(HET_ESC_SHARE_DESKTOP, (LPOSI_ESCAPE_HEADER)&hdr, sizeof(hdr)))
{
ERROR_OUT(("HET_ESC_SHARE_DESKTOP failed"));
DC_QUIT;
}
}
else
{
//
// Start tracking windows.
//
if (!OSI_StartWindowTracking())
{
ERROR_OUT(( "Failed to install window tracking hooks"));
DC_QUIT;
}
}
if (m_scfViewSelf && !HET_ViewStarting(m_pasLocal))
{
ERROR_OUT(("ViewSelf option is on, but can't create ASView data"));
DC_QUIT;
}
HET_CalcViewers(NULL);
rc = TRUE;
DC_EXIT_POINT:
//
// Return to caller
//
DebugExitBOOL(ASShare::HETStartHosting, rc);
return(rc);
}
//
//
// Name: HETStopHosting
//
// Description: Called when the last hosted window is unshared
// ALWAYS CALL THIS AFTER the "hethostedTopLevel" count is 0.
//
// Params: none
//
//
void ASShare::HETStopHosting(BOOL fDesktop)
{
DebugEntry(ASShare::HETStopHosting);
m_hetViewers = FALSE;
//
// Stop tracking graphics/windows. This will stop viewing, then uninstall
// hooks.
//
if (fDesktop)
{
HET_UNSHARE_DESKTOP hdr;
//
// There is no window tracking, just shortcut directly to the
// display driver.
//
OSI_FunctionRequest(HET_ESC_UNSHARE_DESKTOP, (LPOSI_ESCAPE_HEADER)&hdr, sizeof(hdr));
}
else
{
//
// Unshare any remaining shared windows
//
HET_Clear();
OSI_StopWindowTracking();
}
//
// Tell areas we are finished hosting
//
if (m_pHost)
{
//
// If we're viewing ourself, kill the view first
//
if (m_scfViewSelf)
{
HET_ViewEnded(m_pasLocal);
}
m_pHost->HET_HostEnded();
//
// Delete host object
//
delete m_pHost;
m_pHost = NULL;
}
//
// Return to caller
//
DebugExitVOID(ASShare::HETStopHosting);
}
//
// HETSendLocalCount()
// This sends the hosting count to remotes.
// * If zero, we are not sharing
// * If one, we are sharing apps
// * If 0xFFFF, we are sharing desktop
//
// Note that we used to send the real count of top level windows, so every
// time a new window came or went, we would broadcast a packet. But
// remotes only care when the value goes from zero to non-zero or back,
// and when non-zero if it's the special desktop value or not. So don't
// repeatedly broadcast values remotes don't care about!
//
void ASShare::HETSendLocalCount(void)
{
PHETPACKET pHETPacket;
#ifdef _DEBUG
UINT sentSize;
#endif // _DEBUG
DebugEntry(ASShare::HETSendLocalCount);
//
// Allocate a packet for the HET data.
//
pHETPacket = (PHETPACKET)SC_AllocPkt(PROT_STR_MISC, g_s20BroadcastID,
sizeof(HETPACKET));
if (!pHETPacket)
{
WARNING_OUT(("Failed to alloc HET host packet"));
m_hetRetrySendState = TRUE;
DC_QUIT;
}
//
// Packet successfully allocated. Fill in the data and send it.
//
pHETPacket->header.data.dataType = DT_HET;
pHETPacket->msg = HET_MSG_NUMHOSTED;
switch (m_pasLocal->hetCount)
{
case 0:
// Not hosting
pHETPacket->hostState = HET_NOTHOSTING;
break;
case HET_DESKTOPSHARED:
// Sharing desktop - 3.0 only
pHETPacket->header.data.dataType = DT_HET30;
pHETPacket->hostState = HET_DESKTOPSHARED;
break;
default:
// Sharing apps
pHETPacket->hostState = HET_APPSSHARED;
break;
}
//
// Compress and send the packet.
//
#ifdef _DEBUG
sentSize =
#endif // _DEBUG
DCS_CompressAndSendPacket(PROT_STR_MISC, g_s20BroadcastID,
&(pHETPacket->header), sizeof(*pHETPacket));
TRACE_OUT(("HET packet size: %08d, sent %08d", sizeof(*pHETPacket), sentSize));
TRACE_OUT(("Sent new HET packet (%d)", m_pasLocal->hetCount));
m_hetRetrySendState = FALSE;
//
// Return to caller
//
DC_EXIT_POINT:
DebugExitVOID(ASShare::HETSendLocalCount);
}
//
// HETUpdateLocalCount()
//
void ASShare::HETUpdateLocalCount(UINT newCount)
{
UINT oldCount;
DebugEntry(ASShare::HETUpdateLocalCount);
oldCount = m_pasLocal->hetCount;
m_pasLocal->hetCount = newCount;
if ((oldCount == 0) && (newCount != 0))
{
SendMessage(g_asSession.hwndHostUI, HOST_MSG_HOSTSTART, 0, 0);
//
// Don't bother sending net packets if nobody is viewing
//
if (m_hetViewers)
{
HETSendLocalCount();
}
HETCheckSharing(TRUE);
}
else if ((oldCount != 0) && (newCount == 0))
{
if (m_hetViewers)
{
//
// Ending host, desktop or apps
//
HETSendLocalCount();
}
//
// The local guy is stopping sharing.
//
HETStopHosting(oldCount == HET_DESKTOPSHARED);
ASSERT(IsWindow(g_asSession.hwndHostUI));
SendMessage(g_asSession.hwndHostUI, HOST_MSG_HOSTEND, 0, 0);
HETCheckSharing(FALSE);
}
ASSERT(IsWindow(g_asSession.hwndHostUI));
SendMessage(g_asSession.hwndHostUI, HOST_MSG_UPDATELIST, 0, 0);
DebugExitVOID(ASShare::HETUpdateLocalCount);
}
//
// HETUpdateRemoteCount()
//
// Updates the count of shared top level windows from a remote, and notifies
// the UI on transition from/to zero if a remote. If local, kills the share.
//
void ASShare::HETUpdateRemoteCount
(
ASPerson * pasPerson,
UINT newCount
)
{
UINT oldCount;
DebugEntry(ASShare::HETUpdateRemoteCount);
ValidatePerson(pasPerson);
ASSERT(pasPerson != m_pasLocal);
oldCount = pasPerson->hetCount;
pasPerson->hetCount = newCount;
TRACE_OUT(("HETUpdateRemoteCount: Person [%d] old %d, new %d",
pasPerson->mcsID, oldCount, newCount));
//
// We generate events for remote people if
// * They were sharing but now they aren't
// * There weren't sharing but now they are
//
if ((oldCount == 0) && (newCount != 0))
{
//
// The remote dude started to share
//
if (!HET_ViewStarting(pasPerson))
{
ERROR_OUT(("HET_ViewStarting failed; pretending remote not sharing"));
pasPerson->hetCount = 0;
HET_ViewEnded(pasPerson);
}
else
{
HETCheckSharing(TRUE);
}
}
else if ((oldCount != 0) && (newCount == 0))
{
//
// The remote dude stopped sharing. Notify the UI also.
//
HET_ViewEnded(pasPerson);
HETCheckSharing(FALSE);
}
DebugExitVOID(ASShare::HETUpdateRemoteCount);
}
//
// HETCheckSharing()
// Called when any member of the conference (local or remote) transitions
// to/from sharing. When the first person has shared something, we notify
// the UI. When the last person has stopped sharing, we kill the share which
// will notify the UI.
//
void ASShare::HETCheckSharing(BOOL fStarting)
{
DebugEntry(ASShare::HETCheckSharing);
if (fStarting)
{
++m_hetHostCount;
if (m_hetHostCount == 1)
{
// First host started
TRACE_OUT(("First person started hosting"));
DCS_NotifyUI(SH_EVT_SHARING_STARTED, 0, 0);
}
}
else
{
ASSERT(m_hetHostCount > 0);
--m_hetHostCount;
if (m_hetHostCount == 0)
{
//
// Last host stopped sharing -- end share if we're not cleaning
// up after the fact. But don't do it NOW, post a message.
// We may have come in here because the share is ending already.
//
PostMessage(g_asMainWindow, DCS_KILLSHARE_MSG, 0, 0);
}
}
DebugExitVOID(ASShare::HETCheckSharing);
}
//
// HET_HostStarting()
//
// Called when we start to host applications. This creates our host data
// then calls the component HostStarting() routines
//
BOOL ASHost::HET_HostStarting(ASShare * pShare)
{
BOOL rc = FALSE;
DebugEntry(ASHost::HET_HostStarting);
// Set back pointer to share
m_pShare = pShare;
//
// Turn effects off
//
HET_SetGUIEffects(FALSE, &m_hetEffects);
OSI_SetGUIEffects(FALSE);
//
// Now call HostStarting() routines
//
if (!USR_HostStarting())
{
ERROR_OUT(("USR_HostStarting failed"));
DC_QUIT;
}
if (!OE2_HostStarting())
{
ERROR_OUT(("OE2_HostStarting failed"));
DC_QUIT;
}
if (!SBC_HostStarting())
{
ERROR_OUT(("SBC_HostStarting failed"));
DC_QUIT;
}
if (!CM_HostStarting())
{
ERROR_OUT(("CM_HostStarting failed"));
DC_QUIT;
}
if (!SSI_HostStarting())
{
ERROR_OUT(("SSI_HostStarting failed"));
DC_QUIT;
}
if (!PM_HostStarting())
{
ERROR_OUT(("PM_HostStarting failed"));
DC_QUIT;
}
if (!SWL_HostStarting())
{
ERROR_OUT(("SWL_HostStarting failed"));
DC_QUIT;
}
if (!VIEW_HostStarting())
{
ERROR_OUT(("VIEW_HostStarting failed"));
DC_QUIT;
}
//
// Now reset OUTGOING info. 2.x nodes do not; that's why we have to
// hang on to RBC, OD2, CM, PM data for them. When 2.x compat is gone,
// we can move ASPerson data in to ASView, which is only around while
// the person is in fact hosting.
//
OA_LocalHostReset();
//
// Reset OUTGOING data.
// Note corresponding cleanup for 3.0 nodes
// in CM, OD2, RBC, and PM.
// Note that we don't need to reset SSI incoming goop, since we will
// clear all pending orders and are invalidating everything shared
// from scratch. There will be no reference to a previous savebits.
//
HET_SyncCommon();
rc = TRUE;
DC_EXIT_POINT:
DebugExitBOOL(ASHost::HET_HostStarting, rc);
return(rc);
}
//
// HET_HostEnded()
//
// Called when we stop hosting applications.
//
void ASHost::HET_HostEnded(void)
{
DebugEntry(ASHost::HET_HostEnded);
//
// Call HostEnded() routines
//
CA_HostEnded();
SWL_HostEnded();
PM_HostEnded();
CM_HostEnded();
SBC_HostEnded();
OE2_HostEnded();
USR_HostEnded();
//
// Restore windows animation.
//
HET_SetGUIEffects(TRUE, &m_hetEffects);
OSI_SetGUIEffects(TRUE);
DebugExitVOID(ASHost::HET_HostEnded);
}
//
// HET_ViewStarting()
//
// Called to create the data needed to view somebody who is hosting.
//
BOOL ASShare::HET_ViewStarting(ASPerson * pasPerson)
{
BOOL rc = FALSE;
DebugEntry(ASShare::HET_ViewStarting);
ValidatePerson(pasPerson);
//
// Create ASView object
//
ASSERT(!pasPerson->m_pView);
// Allocate VIEW structure
pasPerson->m_pView = new ASView;
if (!pasPerson->m_pView)
{
// Abject, total, failure.
ERROR_OUT(("HET_ViewStarting: Couldn't allocate ASView for [%d]", pasPerson->mcsID));
DC_QUIT;
}
ZeroMemory(pasPerson->m_pView, sizeof(*(pasPerson->m_pView)));
SET_STAMP(pasPerson->m_pView, VIEW);
//
// Now call ViewStarting routines
//
if (!USR_ViewStarting(pasPerson))
{
ERROR_OUT(("USR_ViewStarting failed"));
DC_QUIT;
}
if (!OD2_ViewStarting(pasPerson))
{
ERROR_OUT(("OD2_ViewStarting failed"));
DC_QUIT;
}
if (!OD_ViewStarting(pasPerson))
{
ERROR_OUT(("OD_ViewStarting failed"));
DC_QUIT;
}
if (!RBC_ViewStarting(pasPerson))
{
ERROR_OUT(("RBC_ViewStarting failed"));
DC_QUIT;
}
if (!CM_ViewStarting(pasPerson))
{
ERROR_OUT(("CM_ViewStarting failed"));
DC_QUIT;
}
if (!SSI_ViewStarting(pasPerson))
{
ERROR_OUT(("SSI_ViewStarting failed"));
DC_QUIT;
}
if (!PM_ViewStarting(pasPerson))
{
ERROR_OUT(("PM_ViewStarting failed"));
DC_QUIT;
}
if (!VIEW_ViewStarting(pasPerson))
{
ERROR_OUT(("VIEW_ViewStarting failed"));
DC_QUIT;
}
if (!CA_ViewStarting(pasPerson))
{
ERROR_OUT(("CA_ViewStarting failed"));
DC_QUIT;
}
rc = TRUE;
DC_EXIT_POINT:
DebugExitBOOL(ASShare::HET_ViewStarting, rc);
return(rc);
}
//
// HET_ViewEnded()
//
// Called when we stop viewing a host
//
void ASShare::HET_ViewEnded(ASPerson * pasPerson)
{
DebugEntry(ASShare::HET_ViewEnded);
ValidatePerson(pasPerson);
if (pasPerson->m_pView)
{
//
// Call the component ViewEnded routines
//
CA_ViewEnded(pasPerson);
VIEW_ViewEnded(pasPerson);
PM_ViewEnded(pasPerson);
SSI_ViewEnded(pasPerson);
CM_ViewEnded(pasPerson);
RBC_ViewEnded(pasPerson);
OD_ViewEnded(pasPerson);
OD2_ViewEnded(pasPerson);
USR_ViewEnded(pasPerson);
delete pasPerson->m_pView;
pasPerson->m_pView = NULL;
}
DebugExitVOID(ASShare::HET_ViewEnded);
}
//
// HETUnshareAllWindows()
// EnumWindows() callback, to make sure when you exit a share on the local
// machine, we aren't left with any properties on top level windows.
//
BOOL CALLBACK HETUnshareAllWindows(HWND hwnd, LPARAM lParam)
{
DebugEntry(HETUnshareAllWindows);
HET_ClearHosting(hwnd);
DebugExitVOID(HETUnshareAllWindows);
return(TRUE);
}
//
// HET_Clear()
//
void HET_Clear(void)
{
HET_UNSHARE_ALL req;
DebugEntry(HET_Clear);
ASSERT(g_asCanHost);
//
// Quick DD communication to wipe out the track list
//
OSI_FunctionRequest(HET_ESC_UNSHARE_ALL, (LPOSI_ESCAPE_HEADER)&req, sizeof(req));
//
// Enum all top level windows, and wipe out the property.
// if we can share.
//
EnumWindows(HETUnshareAllWindows, 0);
DebugExitVOID(HET_Clear);
}
//
// HETRepaintWindow()
// EnumWindows() callback to repaint each window, happens when somebody
// joins a share
//
BOOL CALLBACK HETRepaintWindow(HWND hwnd, LPARAM lParam)
{
ASShare * pShare = (ASShare *)lParam;
ASSERT(!IsBadWritePtr(pShare, sizeof(*pShare)));
if (pShare->HET_WindowIsHosted(hwnd))
{
USR_RepaintWindow(hwnd);
}
return(TRUE);
}
//
// HET_SetGUIEffects
//
// Turns various animations off/on when we start/stop hosting, to improve
// performance. Currently, we mess with
// * min animation
// * all of the effects in SPI_SETUIEFFECTS (tooltip fade, menu animation,
// etc.)
// * cursor shadows
//
// We don't turn off smooth scroll or full drag.
//
void HET_SetGUIEffects
(
BOOL fOn,
GUIEFFECTS * pEffects
)
{
DebugEntry(HET_SetGUIEffects);
ASSERT(!IsBadWritePtr(pEffects, sizeof(*pEffects)));
//
// NB. We deliberately do not track the state of animation whilst we
// are sharing. A determined user could, using some other app (such as
// the TweakUI control panel applet) reenable animation whilst in a
// share. We will respect this.
//
// We only affect the current 'in memory' setting - we do not write our
// temporary change to file.
//
if (fOn)
{
//
// If it was on before, restore it.
//
if (pEffects->hetAnimation.iMinAnimate)
{
pEffects->hetAnimation.cbSize = sizeof(pEffects->hetAnimation);
SystemParametersInfo(SPI_SETANIMATION, sizeof(pEffects->hetAnimation),
&pEffects->hetAnimation, 0);
}
if (pEffects->hetAdvanced)
{
SystemParametersInfo(SPI_SETUIEFFECTS, 0,
(LPVOID)pEffects->hetAdvanced, 0);
}
if (pEffects->hetCursorShadow)
{
SystemParametersInfo(SPI_SETCURSORSHADOW, 0,
(LPVOID)pEffects->hetCursorShadow, 0);
}
}
else
{
//
// Find out what animations are on.
//
ZeroMemory(&pEffects->hetAnimation, sizeof(pEffects->hetAnimation));
pEffects->hetAnimation.cbSize = sizeof(pEffects->hetAnimation);
SystemParametersInfo(SPI_GETANIMATION, sizeof(pEffects->hetAnimation),
&pEffects->hetAnimation, 0);
pEffects->hetAdvanced = FALSE;
SystemParametersInfo(SPI_GETUIEFFECTS, 0, &pEffects->hetAdvanced, 0);
pEffects->hetCursorShadow = FALSE;
SystemParametersInfo(SPI_GETCURSORSHADOW, 0, &pEffects->hetCursorShadow, 0);
//
// Turn off the animations which are on.
//
if (pEffects->hetAnimation.iMinAnimate)
{
//
// It's currently enabled, suppress it.
//
pEffects->hetAnimation.cbSize = sizeof(pEffects->hetAnimation);
pEffects->hetAnimation.iMinAnimate = FALSE;
SystemParametersInfo(SPI_SETANIMATION, sizeof(pEffects->hetAnimation),
&pEffects->hetAnimation, 0);
// SPI will wipe this out. Keep it set so we know to restore it.
pEffects->hetAnimation.iMinAnimate = TRUE;
}
if (pEffects->hetAdvanced)
{
SystemParametersInfo(SPI_SETUIEFFECTS, 0, FALSE, 0);
}
if (pEffects->hetCursorShadow)
{
SystemParametersInfo(SPI_SETCURSORSHADOW, 0, FALSE, 0);
}
}
DebugExitVOID(ASHost::HET_SetGUIEffects);
}
//
// HET_GetAppsList()
// Gets the list of shareable applications, the ones currently shared and
// the ones available for sharing.
//
// This routine does NOT check if we're in a call. The interface from the
// UI for the SDK does. This allows us to show the task list, disabled,
// always in the share host UI.
//
BOOL HET_GetAppsList(IAS_HWND_ARRAY ** ppArray)
{
BOOL rc = FALSE;
HOSTENUM hostEnum;
DebugEntry(HET_GetAppsList);
ASSERT(ppArray != NULL);
*ppArray = NULL;
//
// Generate a list of shareable apps
// This does NOT include the desktop.
//
::COM_BasedListInit(&hostEnum.list);
hostEnum.count = 0;
hostEnum.countShared = 0;
::EnumWindows(HostEnumProc, (LPARAM)&hostEnum);
//
// If there's nothing left in the list, but we know something is
// shared, it means there's a hidden/weird window the user can't
// see. Fake a catchall entry.
//
if (hostEnum.countShared && !hostEnum.count)
{
::COM_SimpleListAppend(&hostEnum.list, HWND_BROADCAST);
hostEnum.count++;
}
*ppArray = (IAS_HWND_ARRAY *)new BYTE[sizeof(IAS_HWND_ARRAY) +
(hostEnum.count * sizeof(IAS_HWND))];
if (*ppArray != NULL)
{
(*ppArray)->cEntries = hostEnum.count;
(*ppArray)->cShared = hostEnum.countShared;
IAS_HWND * pEntry;
pEntry = (*ppArray)->aEntries;
while (! ::COM_BasedListIsEmpty(&hostEnum.list))
{
pEntry->hwnd = (HWND) ::COM_SimpleListRemoveHead(&hostEnum.list);
pEntry->fShared = (pEntry->hwnd == HWND_BROADCAST) ||
(HET_IsWindowShared(pEntry->hwnd));
pEntry++;
}
rc = TRUE;
}
else
{
WARNING_OUT(("HET_GetAppsList: can't allocate app array"));
}
DebugExitBOOL(HET_GetAppsList, rc);
return(rc);
}
//
// HET_FreeAppsList()
//
void HET_FreeAppsList(IAS_HWND_ARRAY * pArray)
{
ASSERT(!IsBadWritePtr(pArray, sizeof(*pArray)));
delete pArray;
}
//
// HostEnumProc()
//
// EnumWindows callback. This makes the shared/shareable task list.
//
BOOL CALLBACK HostEnumProc(HWND hwnd, LPARAM lParam)
{
PHOSTENUM phostEnum = (PHOSTENUM)lParam;
//
// We are only interested in windows which:
// - are shareable
// - have no owner. This should remove all top level windows
// except task windows
// - are not the front end itself, which should not be shared
// - are visible
// - are not shadowed or already hosted
//
// We are also only interested in already hosted or shadowed apps, but
// since only ASMaster knows our SHP_HANDLE, we let it test for that
// afterwards, since then we can use SHP_GetWindowStatus().
//
if (HET_IsWindowShared(hwnd))
{
phostEnum->countShared++;
}
HWND hwndOwner = ::GetWindow(hwnd, GW_OWNER);
//
// Note that we also want to skip windows with no title. There's not
// much point is showing <Untitled Application> in the Share menu since
// nobody will have a clue what it is.
//
if ( HET_IsWindowShareable(hwnd) &&
((NULL == hwndOwner) || !::IsWindowVisible(hwndOwner)) &&
::IsWindowVisible(hwnd) &&
::GetWindowTextLength(hwnd)
)
{
::COM_SimpleListAppend((PBASEDLIST)(&((PHOSTENUM)phostEnum)->list), (void *) hwnd);
phostEnum->count++;
}
//
// Return TRUE for the enumeration to continue
//
return TRUE;
}
//
// HET_IsWindowShared()
//
BOOL HET_IsWindowShared(HWND hwnd)
{
BOOL rc = FALSE;
UT_Lock(UTLOCK_AS);
if (g_asSession.pShare &&
g_asSession.pShare->m_pasLocal)
{
if (hwnd == GetDesktopWindow())
{
rc = (g_asSession.pShare->m_pasLocal->hetCount == HET_DESKTOPSHARED);
}
else if (hwnd == HWND_BROADCAST)
{
rc = (g_asSession.pShare->m_pasLocal->hetCount != 0);
}
else
{
rc = (HET_GetHosting(hwnd) != 0);
}
}
UT_Unlock(UTLOCK_AS);
return(rc);
}
//
// HET_IsWindowShareable()
//
BOOL HET_IsWindowShareable(HWND hwnd)
{
BOOL rc = FALSE;
UT_Lock(UTLOCK_AS);
if (HET_IsWindowShared(hwnd))
{
// It's shared -- so it must be shareable (or was at the time)
rc = TRUE;
DC_QUIT;
}
//
// Now check the window against share restrictions
//
// if this is the desktop, check it
if (hwnd == ::GetDesktopWindow())
{
if (g_asPolicies & SHP_POLICY_NODESKTOPSHARE)
{
//
// Policy prevents desktop sharing
//
DC_QUIT;
}
}
else
{
DWORD idProcess;
char szClass[HET_CLASS_NAME_SIZE];
if (GetWindowThreadProcessId(hwnd, &idProcess) &&
(idProcess == GetCurrentProcessId()))
{
//
// We NEVER let you share windows in the caller's process
//
DC_QUIT;
}
if (HET_IsShellWindow(hwnd))
{
//
// We NEVER let you share the tray or the shell desktop
//
DC_QUIT;
}
if ((g_asPolicies & SHP_POLICY_SHAREMASK) &&
GetClassName(hwnd, szClass, sizeof(szClass)))
{
//
// Check for CMD prompt
//
if (!lstrcmpi(szClass, HET_CMD95_CLASS) ||
!lstrcmpi(szClass, HET_CMDNT_CLASS))
{
if (g_asPolicies & SHP_POLICY_NODOSBOXSHARE)
{
//
// Policy prevents cmd prompt sharing
//
DC_QUIT;
}
}
//
// Check for SHELL
//
if (!lstrcmpi(szClass, HET_EXPLORER_CLASS) ||
!lstrcmpi(szClass, HET_CABINET_CLASS))
{
if (g_asPolicies & SHP_POLICY_NOEXPLORERSHARE)
{
//
// Policy prevents shell sharing
//
DC_QUIT;
}
}
}
}
//
// Finally! It's OK to share this.
//
rc = TRUE;
DC_EXIT_POINT:
UT_Unlock(UTLOCK_AS);
return(rc);
}
//
// HostDlgProc()
//
// Handles the hosting UI dialog. This may or may not be visible. It can
// only actually share apps and change control state when in a call. But
// users may keep it up as a mini-taskman thing, so we need to dyanmically
// update its state.
//
INT_PTR CALLBACK HostDlgProc
(
HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam
)
{
BOOL rc = TRUE;
DebugEntry(HostDlgProc);
switch (uMsg)
{
case WM_INITDIALOG:
{
HOST_InitDialog(hwnd);
rc = FALSE;
break;
}
case WM_DESTROY:
{
//
// Because NT4.x has bad WM_DELETEITEM bugs, we must clear out
// the listbox now, to avoid leaking the memory for the
// items.
SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, LB_RESETCONTENT, 0, 0);
rc = FALSE;
break;
}
case WM_INITMENU:
{
if (IsIconic(hwnd))
{
EnableMenuItem(GetSystemMenu(hwnd, FALSE), SC_RESTORE, MF_BYCOMMAND | MF_ENABLED);
EnableMenuItem(GetSystemMenu(hwnd, FALSE), SC_MINIMIZE, MF_BYCOMMAND | MF_GRAYED);
}
else
{
EnableMenuItem(GetSystemMenu(hwnd, FALSE), SC_RESTORE, MF_BYCOMMAND | MF_GRAYED);
EnableMenuItem(GetSystemMenu(hwnd, FALSE), SC_MINIMIZE, MF_BYCOMMAND | MF_ENABLED);
}
break;
}
case WM_SYSCOMMAND:
{
switch (wParam)
{
case CMD_TOPMOST:
{
if (GetWindowLong(hwnd, GWL_EXSTYLE) & WS_EX_TOPMOST)
{
CheckMenuItem(GetSystemMenu(hwnd, FALSE),
CMD_TOPMOST, MF_BYCOMMAND | MF_UNCHECKED);
SetWindowPos(hwnd, HWND_NOTOPMOST, 0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
}
else
{
CheckMenuItem(GetSystemMenu(hwnd, FALSE),
CMD_TOPMOST, MF_BYCOMMAND | MF_CHECKED);
SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
}
break;
}
default:
{
rc = FALSE;
break;
}
}
break;
}
case WM_COMMAND:
{
switch (GET_WM_COMMAND_ID(wParam, lParam))
{
case IDOK:
if (::GetFocus() == GetDlgItem(hwnd, CTRL_PROGRAM_LIST))
{
// Do same thing as double-click
HOST_ChangeShareState(hwnd, CHANGE_TOGGLE);
break;
}
// FALL THROUGH
case IDCANCEL:
SendMessage(hwnd, WM_CLOSE, 0, 0);
break;
case CTRL_PROGRAM_LIST:
{
// Double-click/Enter means to toggle sharing
switch (GET_WM_COMMAND_CMD(wParam, lParam))
{
case LBN_SELCHANGE:
{
HOST_OnSelChange(hwnd);
break;
}
case LBN_DBLCLK:
{
HOST_ChangeShareState(hwnd, CHANGE_TOGGLE);
break;
}
}
break;
}
case CTRL_SHARE_BTN:
{
HOST_ChangeShareState(hwnd, CHANGE_SHARED);
break;
}
case CTRL_UNSHARE_BTN:
{
HOST_ChangeShareState(hwnd, CHANGE_UNSHARED);
break;
}
case CTRL_UNSHAREALL_BTN:
{
HOST_ChangeShareState(hwnd, CHANGE_ALLUNSHARED);
break;
}
case CTRL_ALLOWCONTROL_BTN:
{
// Turn on allow state.
switch (GET_WM_COMMAND_CMD(wParam, lParam))
{
case BN_CLICKED:
{
//
// CA_AllowControl() will send us a message back
// and cause us to change the button.
//
SendMessage(g_asMainWindow, DCS_ALLOWCONTROL_MSG, TRUE, 0);
break;
}
}
break;
}
case CTRL_PREVENTCONTROL_BTN:
{
// Turn off allow state.
switch (GET_WM_COMMAND_CMD(wParam, lParam))
{
case BN_CLICKED:
{
//
// CA_AllowControl() will send us a message back
// and cause us to change the button.
//
SendMessage(g_asMainWindow, DCS_ALLOWCONTROL_MSG, FALSE, 0);
break;
}
}
break;
}
case CTRL_ENABLETRUECOLOR_CHECK:
{
switch (GET_WM_COMMAND_CMD(wParam, lParam))
{
case BN_CLICKED:
{
//
// This takes effect the next time something
// changes--somebody joins, somebody leaves,
// you stop/start hosting
//
if (IsDlgButtonChecked(hwnd, CTRL_ENABLETRUECOLOR_CHECK))
{
g_asSettings |= SHP_SETTING_TRUECOLOR;
}
else
{
g_asSettings &= ~SHP_SETTING_TRUECOLOR;
}
break;
}
}
break;
}
case CTRL_AUTOACCEPTCONTROL_CHECK:
{
switch (GET_WM_COMMAND_CMD(wParam, lParam))
{
case BN_CLICKED:
{
//
// This takes effect when the next control
// request comes in.
//
if (g_asSession.pShare && g_asSession.pShare->m_pHost)
{
g_asSession.pShare->m_pHost->m_caAutoAcceptRequests =
(IsDlgButtonChecked(hwnd, CTRL_AUTOACCEPTCONTROL_CHECK) != 0);
}
break;
}
}
break;
}
case CTRL_TEMPREJECTCONTROL_CHECK:
{
switch (GET_WM_COMMAND_CMD(wParam, lParam))
{
case BN_CLICKED:
{
//
// This takes effect when the next control
// request comes in.
//
// NOTE THAT IT TAKES PRECEDENCE OVER AUTO-ACCEPT.
// This allows you to keep auto-accept on, but then
// temporarily do not disturb.
//
if (g_asSession.pShare && g_asSession.pShare->m_pHost)
{
g_asSession.pShare->m_pHost->m_caTempRejectRequests =
(IsDlgButtonChecked(hwnd, CTRL_TEMPREJECTCONTROL_CHECK) != 0);
}
break;
}
}
break;
}
}
break;
}
case WM_MEASUREITEM:
{
rc = HOST_MeasureItem(hwnd, (LPMEASUREITEMSTRUCT)lParam);
break;
}
case WM_DELETEITEM:
{
rc = HOST_DeleteItem(hwnd, (LPDELETEITEMSTRUCT)lParam);
break;
}
case WM_DRAWITEM:
{
rc = HOST_DrawItem(hwnd, (LPDRAWITEMSTRUCT)lParam);
break;
}
case WM_TIMER:
{
if (wParam != IDT_REFRESH)
{
rc = FALSE;
}
else
{
ASSERT(IsWindowVisible(hwnd));
HOST_FillList(hwnd);
}
break;
}
case WM_ACTIVATE:
{
//
// When activating, kill timer. When deactivating, start
// timer. The theory is, there's nothing else going on when we
// are active, so why poll for updates? On sharing state
// changes, we update the list anyway.
//
if (IsWindowVisible(hwnd))
{
if (wParam)
{
KillTimer(hwnd, IDT_REFRESH);
HOST_FillList(hwnd);
}
else
{
SetTimer(hwnd, IDT_REFRESH, PERIOD_REFRESH, 0);
}
}
break;
}
//
// Private communication messages
//
case HOST_MSG_CALL:
{
HOST_OnCall(hwnd, (wParam != FALSE));
break;
}
case HOST_MSG_OPEN:
{
//
// If we are temporarily hidden, ignore all open requests.
//
if (!g_asSession.fHostUIFrozen)
{
if (!IsWindowVisible(hwnd))
{
//
// Note, we may end up updating the list twice, once here
// and once under activation.
HOST_FillList(hwnd);
ShowWindow(hwnd, SW_SHOW);
g_asSession.fHostUI = TRUE;
}
if (IsIconic(hwnd))
SendMessage(hwnd, WM_SYSCOMMAND, SC_RESTORE, 0);
SetForegroundWindow(hwnd);
}
break;
}
case WM_CLOSE:
case HOST_MSG_CLOSE:
{
if (IsWindowVisible(hwnd))
{
//
// Hiding the window will deactivate it. Deactivating it
// will kick off timer. So kill timer afterwards.
//
ShowWindow(hwnd, SW_HIDE);
KillTimer(hwnd, IDT_REFRESH);
g_asSession.fHostUI = FALSE;
}
break;
}
case HOST_MSG_UPDATELIST:
{
//
// We only do list stuff when the UI is up.
//
if (IsWindowVisible(hwnd))
{
HOST_FillList(hwnd);
//
// If timer is on, reset it. This is for case where you
// are hosting but this UI window is up in the background.
// There's no point in overlapping the updates. We want the
// list to update every time there's a top level shared
// window change OR PERIOD_REFRESH milliseconds have elapsed
// without a change.
//
if (hwnd != GetActiveWindow())
{
SetTimer(hwnd, IDT_REFRESH, PERIOD_REFRESH, 0);
}
}
break;
}
case HOST_MSG_HOSTSTART:
{
HOST_OnSharing(hwnd, TRUE);
break;
}
case HOST_MSG_HOSTEND:
{
HOST_OnSharing(hwnd, FALSE);
break;
}
case HOST_MSG_ALLOWCONTROL:
{
HOST_OnControllable(hwnd, (wParam != 0));
break;
}
case HOST_MSG_CONTROLLED:
{
if (wParam)
{
//
// Hide the window temporarily
//
ASSERT(!g_asSession.fHostUIFrozen);
g_asSession.fHostUIFrozen = TRUE;
if (IsWindowVisible(hwnd))
{
ASSERT(g_asSession.fHostUI);
SetWindowPos(hwnd, NULL, 0, 0, 0, 0, SWP_NOMOVE |
SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE |
SWP_HIDEWINDOW);
}
}
else
{
//
// Put the window back in the state it was
//
if (g_asSession.fHostUIFrozen)
{
g_asSession.fHostUIFrozen = FALSE;
if (g_asSession.fHostUI)
{
SetWindowPos(hwnd, NULL, 0, 0, 0, 0, SWP_NOMOVE |
SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE |
SWP_SHOWWINDOW);
}
}
}
break;
}
default:
rc = FALSE;
break;
}
DebugExitBOOL(HostDlgProc, rc);
return(rc);
}
//
// HOST_InitDialog()
//
// Initializes the host UI dialog
//
void HOST_InitDialog(HWND hwnd)
{
HMENU hMenu;
char szText[128];
MENUITEMINFO mi;
DebugEntry(HOST_InitDialog);
// Set title text
HOST_UpdateTitle(hwnd, IDS_NOTINCALL);
//
// Set window icon
//
SendMessage(hwnd, WM_SETICON, ICON_BIG, (LPARAM)g_hetASIcon);
//
// Update system menu
//
hMenu = GetSystemMenu(hwnd, FALSE);
EnableMenuItem(hMenu, SC_SIZE, MF_BYCOMMAND | MF_GRAYED);
EnableMenuItem(hMenu, SC_MAXIMIZE, MF_BYCOMMAND | MF_GRAYED);
// Append separator, always on top to system menu
ZeroMemory(&mi, sizeof(mi));
mi.cbSize = sizeof(mi);
mi.fMask = MIIM_TYPE;
mi.fType = MFT_SEPARATOR;
InsertMenuItem(hMenu, -1, TRUE, &mi);
mi.fMask = MIIM_ID | MIIM_STATE | MIIM_TYPE;
mi.fType = MFT_STRING;
mi.fState = MFS_ENABLED;
mi.wID = CMD_TOPMOST;
LoadString(g_asInstance, IDS_TOPMOST, szText, sizeof(szText));
mi.dwTypeData = szText;
mi.cch = lstrlen(szText);
InsertMenuItem(hMenu, -1, TRUE, &mi);
//
// Enable/disable true color sharing control. If a policy prevents it
// or our screen depth isn't capable, disable it.
//
HOST_EnableCtrl(hwnd, CTRL_ENABLETRUECOLOR_CHECK,
((g_usrScreenBPP >= 24) && !(g_asPolicies & SHP_POLICY_NOTRUECOLOR)));
//
// Get text, control buttons set.
//
HOST_OnControllable(hwnd, TRUE);
HOST_OnControllable(hwnd, FALSE);
DebugExitVOID(HOST_InitDialog);
}
//
// HOST_UpdateTitle()
//
// Updates title bar of hosting UI
//
void HOST_UpdateTitle(HWND hwnd, UINT idState)
{
char szText[64];
char szFormat[128];
char szTitle[192];
DebugEntry(HOST_UpdateTitle);
LoadString(g_asInstance, IDS_SHARING_FORMAT, szFormat, sizeof(szFormat));
LoadString(g_asInstance, idState, szText, sizeof(szText));
wsprintf(szTitle, szFormat, szText);
SetWindowText(hwnd, szTitle);
DebugExitVOID(HOST_UpdateTitle);
}
//
// HOST_OnCall()
//
// Handles call start/stop
//
void HOST_OnCall(HWND hwnd, BOOL fCall)
{
DebugEntry(HOST_OnCall);
// Update title bar
HOST_UpdateTitle(hwnd, (fCall ? IDS_NOTHING : IDS_NOTINCALL));
HOST_EnableCtrl(hwnd, CTRL_PROGRAM_LIST, fCall);
if (IsWindowVisible(hwnd))
{
SendMessage(hwnd, HOST_MSG_UPDATELIST, 0, 0);
}
DebugExitVOID(HOST_OnCall);
}
//
// HOST_OnSharing()
//
// Handles sharing start/stop
//
void HOST_OnSharing(HWND hwnd, BOOL fSharing)
{
DebugEntry(HOST_OnSharing);
// Update title bar
if (fSharing)
{
HOST_UpdateTitle(hwnd,
(g_asSession.pShare->m_pasLocal->hetCount == HET_DESKTOPSHARED) ?
IDS_DESKTOP : IDS_PROGRAMS);
}
else
{
HOST_UpdateTitle(hwnd, IDS_NOTHING);
}
//
// The ctrl button should always be Allow. When we stop hosting, we turn
// off allowing control first.
//
if (!(g_asPolicies & SHP_POLICY_NOCONTROL))
{
HOST_EnableCtrl(hwnd, CTRL_ALLOWCONTROL_BTN, fSharing);
}
HOST_EnableCtrl(hwnd, CTRL_UNSHAREALL_BTN, fSharing);
if ((g_usrScreenBPP >= 24) && !(g_asPolicies & SHP_POLICY_NOTRUECOLOR))
{
//
// Only dynamically change this checkbox if true color is available.
//
HOST_EnableCtrl(hwnd, CTRL_ENABLETRUECOLOR_CHECK, !fSharing);
}
DebugExitVOID(HOST_OnSharing);
}
//
// HOST_OnControllable()
//
// Updates the blurb, button text, and button ID when the controllable
// state changes.
//
void HOST_OnControllable(HWND hwnd, BOOL fControllable)
{
HWND hwndBtn;
TCHAR szText[256];
DebugEntry(HOST_OnControllable);
// Control blurb
LoadString(g_asInstance,
(fControllable ? IDS_MSG_TOPREVENTCONTROL : IDS_MSG_TOALLOWCONTROL),
szText, sizeof(szText));
SetDlgItemText(hwnd, CTRL_CONTROL_MSG, szText);
// Control button
if (fControllable)
{
hwndBtn = GetDlgItem(hwnd, CTRL_ALLOWCONTROL_BTN);
ASSERT(hwndBtn);
SetWindowLong(hwndBtn, GWL_ID, CTRL_PREVENTCONTROL_BTN);
LoadString(g_asInstance, IDS_PREVENTCONTROL, szText, sizeof(szText));
}
else
{
hwndBtn = GetDlgItem(hwnd, CTRL_PREVENTCONTROL_BTN);
ASSERT(hwndBtn);
SetWindowLong(hwndBtn, GWL_ID, CTRL_ALLOWCONTROL_BTN);
LoadString(g_asInstance, IDS_ALLOWCONTROL, szText, sizeof(szText));
}
SetWindowText(hwndBtn, szText);
// Enable/disable the control checkboxes, make sure they start unchecked.
HOST_EnableCtrl(hwnd, CTRL_TEMPREJECTCONTROL_CHECK, fControllable);
CheckDlgButton(hwnd, CTRL_TEMPREJECTCONTROL_CHECK, FALSE);
HOST_EnableCtrl(hwnd, CTRL_AUTOACCEPTCONTROL_CHECK, fControllable);
CheckDlgButton(hwnd, CTRL_AUTOACCEPTCONTROL_CHECK, FALSE);
DebugExitVOID(HOST_OnControllable);
}
//
// HOST_FillList()
//
// Fills the contents of the shared/unshared applications list
//
void HOST_FillList(HWND hwnd)
{
IAS_HWND_ARRAY * pArray;
int iItem;
PHOSTITEM pItem;
char szText[80];
UINT iWnd;
HICON hIcon;
BOOL fAppsAvailable;
HWND hwndSelect;
int iSelect;
int iTop;
int cxExtent;
RECT rc;
HFONT hfnT;
HFONT hfnControl;
HDC hdc;
//
// For the common case, remember what was selected and try to put that
// back.
//
// Save current top index
iTop = (int)SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, LB_GETTOPINDEX, 0, 0);
// Save currently selected item
hwndSelect = HWND_BOTTOM;
iSelect = -1;
iItem = (int)SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, LB_GETCURSEL, 0, 0);
if (iItem != -1)
{
pItem = (PHOSTITEM)SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST,
LB_GETITEMDATA, iItem, 0);
if (pItem)
{
hwndSelect = pItem->hwnd;
}
}
//
// Turn off redraw and clear the apps list.
//
SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, WM_SETREDRAW, FALSE, 0);
SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, LB_RESETCONTENT, 0, 0);
//
// We're going to calculate the horizontal extent since ownerdraw
// lists can't do that.
//
hdc = GetDC(hwnd);
hfnControl = (HFONT)SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, WM_GETFONT, 0, 0);
cxExtent = 0;
//
// HET_GetAppsList() will fail if there's not enough memory to allocate
// the array. If we really can't allocate it, why add an item for the
// desktop?
//
if (HET_GetAppsList(&pArray))
{
ASSERT(pArray);
fAppsAvailable = TRUE;
//
// If desktop sharing is permitted, add desktop item.
//
if (!(g_asPolicies & SHP_POLICY_NODESKTOPSHARE))
{
pItem = new HOSTITEM;
if (!pItem)
{
ERROR_OUT(("Unable to alloc HOSTITEM for listbox"));
}
else
{
pItem->hwnd = GetDesktopWindow();
pItem->hIcon = g_hetDeskIconSmall;
LoadString(g_asInstance, IDS_DESKTOP, szText,
sizeof(szText));
pItem->fShared = (HET_IsWindowShared(pItem->hwnd) != FALSE);
if (pItem->fShared)
{
//
// When everything (the desktop) is shared, sharing
// individual apps makes no sense. We keep them in the
// list but draw them unavailable, same as if the list
// itself were completely disabled.
//
fAppsAvailable = FALSE;
pItem->fAvailable = TRUE;
}
else if (!pArray->cShared && g_asSession.callID &&
(g_asSession.attendeePermissions & NM_PERMIT_SHARE))
{
//
// No apps are shared, the desktop item is available.
//
pItem->fAvailable = TRUE;
}
else
{
//
// Apps are shared, sharing the entire desktop makes no
// sense.
//
pItem->fAvailable = FALSE;
}
iItem = (int)SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST,
LB_ADDSTRING, 0, (LPARAM)szText);
if (iItem == -1)
{
ERROR_OUT(("Couldn't append item to list"));
delete pItem;
}
else
{
SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, LB_SETITEMDATA,
iItem, (LPARAM)pItem);
//
// Calculate width.
//
hfnT = SelectFont(hdc,
(pItem->fShared ? g_hetSharedFont : hfnControl));
SetRectEmpty(&rc);
DrawText(hdc, szText, lstrlen(szText), &rc,
DT_LEFT | DT_VCENTER | DT_EXTERNALLEADING | DT_NOPREFIX |
DT_SINGLELINE | DT_CALCRECT);
SelectFont(hdc, hfnT);
rc.right -= rc.left;
cxExtent = max(cxExtent, rc.right);
//
// If this desktop item were selected last time,
// remember so we select it again after.
//
if (pItem->hwnd == hwndSelect)
iSelect = iItem;
}
}
}
//
// Add items for apps.
//
for (iWnd = 0; iWnd < pArray->cEntries; iWnd++)
{
hIcon = NULL;
if (pArray->aEntries[iWnd].hwnd == HWND_BROADCAST)
{
LoadString(g_asInstance, IDS_HIDDEN_WINDOW, szText,
sizeof(szText));
hIcon = g_hetASIconSmall;
}
else
{
GetWindowText(pArray->aEntries[iWnd].hwnd, szText, sizeof(szText));
if (!szText[0])
continue;
// Try to get window small icon
SendMessageTimeout(pArray->aEntries[iWnd].hwnd, WM_GETICON, ICON_SMALL, 0,
SMTO_NORMAL, 1000, (DWORD_PTR*)&hIcon);
if (!hIcon)
{
hIcon = (HICON)GetClassLongPtr(pArray->aEntries[iWnd].hwnd, GCLP_HICON);
}
//
// Make a copy of the small icon, we can't just hang on to
// the application's, it could go away.
//
if (hIcon)
{
hIcon = (HICON)CopyImage(hIcon, IMAGE_ICON, 0, 0, 0);
}
if (!hIcon)
{
hIcon = g_hetASIconSmall;
}
}
//
// Add item to list
//
pItem = new HOSTITEM;
if (!pItem)
{
ERROR_OUT(("Unable to alloc HOSTITEM for listbox"));
}
else
{
pItem->hwnd = pArray->aEntries[iWnd].hwnd;
pItem->hIcon = hIcon;
pItem->fShared = pArray->aEntries[iWnd].fShared;
pItem->fAvailable = g_asSession.callID &&
(g_asSession.attendeePermissions & NM_PERMIT_SHARE) &&
(fAppsAvailable != FALSE);
iItem = (int)SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST,
LB_ADDSTRING, 0, (LPARAM)szText);
if (iItem == -1)
{
ERROR_OUT(("Couldn't append item to list"));
delete pItem;
}
else
{
SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, LB_SETITEMDATA,
iItem, (LPARAM)pItem);
//
// Calculate width.
//
hfnT = SelectFont(hdc,
(pItem->fShared ? g_hetSharedFont : hfnControl));
SetRectEmpty(&rc);
DrawText(hdc, szText, lstrlen(szText), &rc,
DT_LEFT | DT_VCENTER | DT_EXTERNALLEADING | DT_NOPREFIX |
DT_SINGLELINE | DT_CALCRECT);
SelectFont(hdc, hfnT);
rc.right -= rc.left;
cxExtent = max(cxExtent, rc.right);
}
//
// If this app item were selected before, remember so we
// select it again when done.
//
if (pItem->hwnd == hwndSelect)
iSelect = iItem;
}
}
HET_FreeAppsList(pArray);
}
ReleaseDC(hwnd, hdc);
//
// Set cur sel, top index, update buttons
//
SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, LB_SETTOPINDEX, iTop, 0);
SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, LB_SETCURSEL, iSelect, 0);
HOST_OnSelChange(hwnd);
//
// Turn on redraw and repaint
//
SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, WM_SETREDRAW, TRUE, 0);
//
// Set horizontal extent
//
if (cxExtent)
{
// Add on space for checkmark, icons
cxExtent += GetSystemMetrics(SM_CXMENUCHECK) + GetSystemMetrics(SM_CXSMICON) +
3*GetSystemMetrics(SM_CXEDGE);
}
SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, LB_SETHORIZONTALEXTENT, cxExtent, 0);
InvalidateRect(GetDlgItem(hwnd, CTRL_PROGRAM_LIST), NULL, TRUE);
UpdateWindow(GetDlgItem(hwnd, CTRL_PROGRAM_LIST));
DebugExitVOID(HOST_FillList);
}
//
// HOST_MeasureItem()
//
// Calculates height of ownerdraw items in host list
//
BOOL HOST_MeasureItem(HWND hwnd, LPMEASUREITEMSTRUCT lpmi)
{
BOOL rc = FALSE;
UINT cy;
TEXTMETRIC tm;
HDC hdc;
HFONT hfnT;
DebugEntry(HOST_MeasureItem);
if (lpmi->CtlID != CTRL_PROGRAM_LIST)
{
// Not for us
DC_QUIT;
}
// Get height of bolded font
hdc = GetDC(hwnd);
hfnT = SelectFont(hdc, g_hetSharedFont);
GetTextMetrics(hdc, &tm);
SelectFont(hdc, hfnT);
ReleaseDC(hwnd, hdc);
//
// Height is max of default height (height of char in font),
// checkmark height, and small icon height, plus dotted rect.
//
cy = (UINT)tm.tmHeight;
lpmi->itemHeight = max(lpmi->itemHeight, cy);
cy = (UINT)GetSystemMetrics(SM_CYMENUCHECK);
lpmi->itemHeight = max(lpmi->itemHeight, cy);
cy = (UINT)GetSystemMetrics(SM_CYSMICON);
lpmi->itemHeight = max(lpmi->itemHeight, cy);
lpmi->itemHeight += GetSystemMetrics(SM_CYEDGE);
rc = TRUE;
DC_EXIT_POINT:
DebugExitBOOL(HOST_MeasureItem, rc);
return(rc);
}
//
// HOST_DeleteItem()
//
// Cleans up after an item is deleted from the list.
//
BOOL HOST_DeleteItem(HWND hwnd, LPDELETEITEMSTRUCT lpdi)
{
PHOSTITEM pItem;
BOOL rc = FALSE;
DebugEntry(HOST_DeleteItem);
if (lpdi->CtlID != CTRL_PROGRAM_LIST)
{
DC_QUIT;
}
pItem = (PHOSTITEM)lpdi->itemData;
if (!pItem)
{
//
// NT 4.x has a terrible bug where the item data is not passed
// in the DELETEITEMSTRUCT always. So try to obtain it if not.
//
pItem = (PHOSTITEM)SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, LB_GETITEMDATA,
lpdi->itemID, 0);
}
if (pItem)
{
if ((pItem->hIcon != g_hetASIconSmall) && (pItem->hIcon != g_hetDeskIconSmall))
{
DestroyIcon(pItem->hIcon);
}
delete pItem;
}
rc = TRUE;
DC_EXIT_POINT:
DebugExitBOOL(HOST_DeleteItem, rc);
return(rc);
}
//
// HOST_DrawItem()
//
// Draws list item
//
BOOL HOST_DrawItem(HWND hwnd, LPDRAWITEMSTRUCT lpdi)
{
COLORREF clrBk;
COLORREF clrText;
HBRUSH hbr;
HFONT hfnT;
RECT rcItem;
char szText[80];
PHOSTITEM pItem;
BOOL rc = FALSE;
if (lpdi->CtlID != CTRL_PROGRAM_LIST)
{
DC_QUIT;
}
pItem = (PHOSTITEM)lpdi->itemData;
if (!pItem)
{
// Empty item for focus
rc = TRUE;
DC_QUIT;
}
rcItem = lpdi->rcItem;
//
// Set up colors
//
if (!pItem->fAvailable)
{
// No selection color
clrBk = GetSysColor(COLOR_WINDOW);
hbr = GetSysColorBrush(COLOR_WINDOW);
clrText = GetSysColor(COLOR_GRAYTEXT);
}
else if (lpdi->itemState & ODS_SELECTED)
{
clrBk = GetSysColor(COLOR_HIGHLIGHT);
hbr = GetSysColorBrush(COLOR_HIGHLIGHT);
clrText = GetSysColor(COLOR_HIGHLIGHTTEXT);
}
else
{
clrBk = GetSysColor(COLOR_WINDOW);
hbr = GetSysColorBrush(COLOR_WINDOW);
clrText = GetSysColor(COLOR_WINDOWTEXT);
}
SetBkColor(lpdi->hDC, clrBk);
SetTextColor(lpdi->hDC, clrText);
// Erase background
FillRect(lpdi->hDC, &rcItem, hbr);
// Focus rect
if (lpdi->itemState & ODS_FOCUS)
{
DrawFocusRect(lpdi->hDC, &rcItem);
}
rcItem.left += GetSystemMetrics(SM_CXEDGE);
InflateRect(&rcItem, 0, -GetSystemMetrics(SM_CYBORDER));
//
// Draw checkmark and select bolded font
//
if (pItem->fShared)
{
HDC hdcT;
HBITMAP hbmpOld;
hdcT = CreateCompatibleDC(lpdi->hDC);
hbmpOld = SelectBitmap(hdcT, g_hetCheckBitmap);
SetTextColor(hdcT, clrText);
SetBkColor(hdcT, clrBk);
BitBlt(lpdi->hDC, rcItem.left,
(rcItem.top + rcItem.bottom - GetSystemMetrics(SM_CYMENUCHECK)) / 2,
GetSystemMetrics(SM_CXMENUCHECK), GetSystemMetrics(SM_CYMENUCHECK),
hdcT, 0, 0,
SRCCOPY);
SelectBitmap(hdcT, hbmpOld);
DeleteDC(hdcT);
hfnT = SelectFont(lpdi->hDC, g_hetSharedFont);
}
rcItem.left += GetSystemMetrics(SM_CXMENUCHECK) + GetSystemMetrics(SM_CXEDGE);
// Draw icon, centered vertically
DrawIconEx(lpdi->hDC, rcItem.left, (rcItem.top + rcItem.bottom -
GetSystemMetrics(SM_CYSMICON)) /2, pItem->hIcon,
GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON),
0, NULL, DI_NORMAL);
rcItem.left += GetSystemMetrics(SM_CXSMICON) + GetSystemMetrics(SM_CXEDGE);
//
// Draw the text
//
szText[0] = 0;
SendMessage(lpdi->hwndItem, LB_GETTEXT, lpdi->itemID,
(LPARAM)szText);
DrawText(lpdi->hDC, szText, lstrlen(szText), &rcItem,
DT_LEFT | DT_VCENTER | DT_EXTERNALLEADING | DT_NOPREFIX | DT_SINGLELINE);
//
// Deselect bolded shared font
//
if (pItem->fShared)
{
SelectFont(lpdi->hDC, hfnT);
}
rc = TRUE;
DC_EXIT_POINT:
return(rc);
}
//
// HOST_ChangeShareState()
//
// Changes the sharing state of the currently selected item.
//
void HOST_ChangeShareState(HWND hwnd, UINT action)
{
int iItem;
PHOSTITEM pItem;
HWND hwndChange;
HCURSOR hcurT;
DebugEntry(HOST_ChangeShareState);
if (action == CHANGE_ALLUNSHARED)
{
hwndChange = HWND_BROADCAST;
action = CHANGE_UNSHARED;
goto ChangeState;
}
iItem = (int)SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, LB_GETCURSEL, 0, 0);
if (iItem != -1)
{
pItem = (PHOSTITEM)SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST,
LB_GETITEMDATA, iItem, 0);
if (pItem && pItem->fAvailable)
{
hwndChange = pItem->hwnd;
if (action == CHANGE_TOGGLE)
{
if (HET_IsWindowShared(hwndChange))
{
action = CHANGE_UNSHARED;
}
else
{
action = CHANGE_SHARED;
}
}
ChangeState:
ASSERT((action == CHANGE_SHARED) || (action == CHANGE_UNSHARED));
//
// Set wait cursor
//
hcurT = SetCursor(LoadCursor(NULL, IDC_WAIT));
if (action == CHANGE_SHARED)
{
DCS_Share(hwndChange, IAS_SHARE_DEFAULT);
}
else
{
DCS_Unshare(hwndChange);
}
//
// Set wait cursor
//
SetCursor(hcurT);
}
}
DebugExitVOID(HOST_ChangeShareState);
}
//
// HOST_OnSelChange()
//
// Handles a selection change in the task list. We enable/disable
// buttons as appropriate, depending on whether item is available.
//
void HOST_OnSelChange(HWND hwnd)
{
int iItem;
PHOSTITEM pItem;
BOOL fShareBtn = FALSE;
BOOL fUnshareBtn = FALSE;
DebugEntry(HOST_OnSelChange);
//
// Get current selection, and decide what to do based off that.
//
iItem = (int)SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST, LB_GETCURSEL, 0, 0);
if (iItem != -1)
{
pItem = (PHOSTITEM)SendDlgItemMessage(hwnd, CTRL_PROGRAM_LIST,
LB_GETITEMDATA, iItem, 0);
if (pItem)
{
if (pItem->fShared)
{
fUnshareBtn = TRUE;
}
else if (pItem->fAvailable)
{
ASSERT(g_asSession.callID);
fShareBtn = TRUE;
}
}
}
HOST_EnableCtrl(hwnd, CTRL_UNSHARE_BTN, fUnshareBtn);
HOST_EnableCtrl(hwnd, CTRL_SHARE_BTN, fShareBtn);
DebugExitVOID(HOST_OnSelChange);
}
//
// HOST_EnableCtrl()
//
// This enables/disables the child control. If disabling, and this control
// used to have the focus, we make sure the dialog resets the focus control
// so the keyboard keeps working. We know that the Close button is always
// available, so this won't die.
//
void HOST_EnableCtrl
(
HWND hwnd,
UINT ctrl,
BOOL fEnable
)
{
HWND hwndCtrl;
DebugEntry(HOST_EnableCtrl);
hwndCtrl = GetDlgItem(hwnd, ctrl);
ASSERT(hwndCtrl);
if (fEnable)
{
EnableWindow(hwndCtrl, TRUE);
}
else
{
if (GetFocus() == hwndCtrl)
{
// Advance the focus
SendMessage(hwnd, WM_NEXTDLGCTL, 0, 0);
}
EnableWindow(hwndCtrl, FALSE);
}
DebugExitVOID(HOST_EnableCtrl);
}
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