347 lines
9.5 KiB
C++
347 lines
9.5 KiB
C++
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// File: taskbar.cpp
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#include "precomp.h"
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#include "taskbar.h"
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#include <iappldr.h>
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#include <tsecctrl.h>
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static HWND g_hwndHidden = NULL;
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const TCHAR g_cszHiddenWndClassName[] = _TEXT("MnmSrvcHiddenWindow");
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BOOL g_fTaskBarIconAdded = FALSE;
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BOOL g_fTimerRunning = FALSE;
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extern INmSysInfo2 * g_pNmSysInfo;
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extern int g_cPersonsInConf;
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// This routine starts a timer to periodically retry adding the taskbar icon.
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// This is necessary in case the taskbar is not showing at the time the
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// service is launched, or the taskbar is destroyed by a logoff-logon sequence.
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VOID StartTaskbarTimer(VOID)
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{
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if ( !g_fTimerRunning)
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{
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ASSERT(g_hwndHidden);
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SetTimer(g_hwndHidden, 0, 5000, NULL);
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g_fTimerRunning = TRUE;
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}
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}
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VOID KillTaskbarTimer(VOID)
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{
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if ( g_fTimerRunning )
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{
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KillTimer ( g_hwndHidden, 0 );
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g_fTimerRunning = FALSE;
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}
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}
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LRESULT CALLBACK HiddenWndProc( HWND hwnd, UINT uMsg,
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WPARAM wParam, LPARAM lParam)
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{
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switch(uMsg)
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{
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case WM_USERCHANGED:
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case WM_ENDSESSION:
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// A user is logging on or off... We don't know which but
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// since the desktop is changing we assume our taskbar icon
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// is toast. Start a timer to periodically try to add it back
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// until it succeeds.
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g_fTaskBarIconAdded = FALSE;
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StartTaskbarTimer();
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break;
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case WM_TASKBAR_NOTIFY:
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{
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if (WM_RBUTTONUP == lParam)
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{
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::OnRightClickTaskbar();
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}
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break;
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}
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case WM_TIMER:
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AddTaskbarIcon();
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break;
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case WM_DESTROY:
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{
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// NULL the global variable:
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g_hwndHidden = NULL;
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return 0;
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}
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default:
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return DefWindowProc(hwnd, uMsg, wParam, lParam);
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}
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return FALSE;
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}
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BOOL CmdActivate(VOID)
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{
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RegEntry Re( REMOTECONTROL_KEY, HKEY_LOCAL_MACHINE );
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Re.SetValue ( REMOTE_REG_ACTIVATESERVICE, (DWORD)1 );
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if (MNMServiceActivate())
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{
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ReportStatusToSCMgr( SERVICE_RUNNING, NO_ERROR, 0);
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return TRUE;
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}
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else
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{
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return FALSE;
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}
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}
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VOID CmdInActivate(VOID)
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{
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RegEntry Re( REMOTECONTROL_KEY, HKEY_LOCAL_MACHINE );
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Re.SetValue ( REMOTE_REG_ACTIVATESERVICE, (DWORD)0 );
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if (MNMServiceDeActivate())
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ReportStatusToSCMgr( SERVICE_PAUSED, NO_ERROR, 0);
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}
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VOID CmdSendFiles(VOID)
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{
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ASSERT(g_pNmSysInfo);
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if (g_pNmSysInfo)
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{
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g_pNmSysInfo->ProcessSecurityData(LOADFTAPPLET, 0, 0, NULL);
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}
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}
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VOID CmdShutdown(VOID)
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{
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if (STATE_ACTIVE == g_dwActiveState)
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{
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CmdInActivate();
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}
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MNMServiceStop();
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DestroyWindow(g_hwndHidden);
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}
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BOOL AddTaskbarIcon(VOID)
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{
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BOOL bRet = FALSE;
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if ( NULL == g_hwndHidden )
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{
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// Register hidden window class:
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WNDCLASS wcHidden =
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{
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0L,
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HiddenWndProc,
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0,
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0,
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GetModuleHandle(NULL),
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NULL,
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NULL,
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NULL,
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NULL,
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g_cszHiddenWndClassName
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};
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if (!RegisterClass(&wcHidden))
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{
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ERROR_OUT(("Could not register hidden wnd classes"));
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return FALSE;
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}
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// Create a hidden window for event processing:
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g_hwndHidden = ::CreateWindow( g_cszHiddenWndClassName,
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_TEXT(""),
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WS_POPUP, // not visible!
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0, 0, 0, 0,
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NULL,
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NULL,
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GetModuleHandle(NULL),
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NULL);
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}
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if (NULL == g_hwndHidden)
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{
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ERROR_OUT(("Could not create hidden windows"));
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return FALSE;
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}
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// Place a 16x16 icon in the taskbar notification area:
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NOTIFYICONDATA tnid;
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tnid.cbSize = sizeof(NOTIFYICONDATA);
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tnid.hWnd = g_hwndHidden;
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tnid.uID = ID_TASKBAR_ICON;
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tnid.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
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tnid.uCallbackMessage = WM_TASKBAR_NOTIFY;
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tnid.hIcon = LoadIcon(GetModuleHandle(NULL), MAKEINTRESOURCE(IDI_SM_WORLD));
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::LoadString(GetModuleHandle(NULL), IDS_MNMSRVC_TITLE,
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tnid.szTip, CCHMAX(tnid.szTip));
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// Attempt to add the icon. This may fail because there is no taskbar
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// (no user desktop shown). Warn if this is so... We will retry on
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// a periodic timer.
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if (FALSE == (bRet = Shell_NotifyIcon(NIM_ADD, &tnid)))
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{
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#ifdef DEBUG
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if ( !g_fTimerRunning )
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WARNING_OUT(("Could not add notify icon!"));
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#endif // DEBUG
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// Start the taskbar timer to periodically retry until this succeeds
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StartTaskbarTimer();
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}
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else
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{
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g_fTaskBarIconAdded = TRUE;
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KillTaskbarTimer(); // Kill timer if necessary
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}
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if (NULL != tnid.hIcon)
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{
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DestroyIcon(tnid.hIcon);
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}
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return bRet;
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}
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BOOL RemoveTaskbarIcon(VOID)
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{
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NOTIFYICONDATA tnid;
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BOOL ret;
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if ( !g_fTaskBarIconAdded || NULL == g_hwndHidden )
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{
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return FALSE;
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}
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tnid.cbSize = sizeof(NOTIFYICONDATA);
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tnid.hWnd = g_hwndHidden;
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tnid.uID = ID_TASKBAR_ICON;
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ret = Shell_NotifyIcon(NIM_DELETE, &tnid);
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g_fTaskBarIconAdded = FALSE;
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return ret;
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}
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BOOL OnRightClickTaskbar()
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{
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TRACE_OUT(("OnRightClickTaskbar called"));
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POINT ptClick;
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if (FALSE == ::GetCursorPos(&ptClick))
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{
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ptClick.x = ptClick.y = 0;
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}
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// Get the menu for the popup from the resource file.
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HMENU hMenu = ::LoadMenu(GetModuleHandle(NULL), MAKEINTRESOURCE(IDR_TASKBAR_POPUP));
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if (NULL == hMenu)
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{
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return FALSE;
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}
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// Get the first menu in it which we will use for the call to
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// TrackPopup(). This could also have been created on the fly using
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// CreatePopupMenu and then we could have used InsertMenu() or
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// AppendMenu.
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HMENU hMenuTrackPopup = ::GetSubMenu(hMenu, 0);
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RegEntry reLM( REMOTECONTROL_KEY, HKEY_LOCAL_MACHINE);
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BOOL fNoExit = reLM.GetNumber(REMOTE_REG_NOEXIT, DEFAULT_REMOTE_NOEXIT);
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::EnableMenuItem(hMenuTrackPopup, IDM_TBPOPUP_STOP, fNoExit ? MF_GRAYED : MF_ENABLED);
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if (STATE_ACTIVE == g_dwActiveState)
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{
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::EnableMenuItem(hMenuTrackPopup, IDM_TBPOPUP_INACTIVATE, fNoExit ? MF_GRAYED : MF_ENABLED);
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::EnableMenuItem(hMenuTrackPopup, IDM_TBPOPUP_SENDFILES, (2 == g_cPersonsInConf) ? MF_ENABLED : MF_GRAYED);
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}
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else if (STATE_INACTIVE == g_dwActiveState)
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{
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HANDLE hInit = ::OpenEvent(EVENT_ALL_ACCESS, FALSE, _TEXT("CONF:Init"));
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::EnableMenuItem(hMenuTrackPopup, IDM_TBPOPUP_ACTIVATE, hInit ?
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MF_GRAYED : MF_ENABLED);
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::CloseHandle(hInit);
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}
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else
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{
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// Leave all menus grayed
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}
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// Draw and track the "floating" popup
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// According to the font view code, there is a bug in USER which causes
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// TrackPopupMenu to work incorrectly when the window doesn't have the
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// focus. The work-around is to temporarily create a hidden window and
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// make it the foreground and focus window.
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HWND hwndDummy = ::CreateWindow(_TEXT("STATIC"), NULL, 0,
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ptClick.x,
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ptClick.y,
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1, 1, HWND_DESKTOP,
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NULL, GetModuleHandle(NULL), NULL);
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if (NULL != hwndDummy)
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{
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HWND hwndPrev = ::GetForegroundWindow(); // to restore
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TPMPARAMS tpmp;
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tpmp.cbSize = sizeof(tpmp);
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tpmp.rcExclude.right = 1 + (tpmp.rcExclude.left = ptClick.x);
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tpmp.rcExclude.bottom = 1 + (tpmp.rcExclude.top = ptClick.y);
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::SetForegroundWindow(hwndDummy);
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::SetFocus(hwndDummy);
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int iRet = ::TrackPopupMenuEx( hMenuTrackPopup,
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TPM_RETURNCMD | TPM_HORIZONTAL | TPM_RIGHTALIGN |
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TPM_RIGHTBUTTON | TPM_LEFTBUTTON,
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ptClick.x,
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ptClick.y,
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hwndDummy,
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&tpmp);
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// Restore the previous foreground window (before destroying hwndDummy).
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if (hwndPrev)
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{
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::SetForegroundWindow(hwndPrev);
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}
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::DestroyWindow(hwndDummy);
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switch (iRet)
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{
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case IDM_TBPOPUP_ACTIVATE:
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{
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CmdActivate();
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break;
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}
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case IDM_TBPOPUP_INACTIVATE:
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{
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CmdInActivate();
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break;
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}
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case IDM_TBPOPUP_SENDFILES:
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{
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CmdSendFiles();
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break;
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}
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case IDM_TBPOPUP_STOP:
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{
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CmdShutdown();
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break;
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}
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default:
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break;
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}
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}
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// We are finished with the menu now, so destroy it
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::RemoveMenu(hMenu, 0, MF_BYPOSITION);
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::DestroyMenu(hMenuTrackPopup);
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::DestroyMenu(hMenu);
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return TRUE;
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}
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