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windows-nt/Source/XPSP1/NT/multimedia/media/mciole/mciole.c

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2020-09-26 03:20:57 -05:00
/* Copyright (c) 1992-1999 Microsoft Corporation */
/*****************************************************************************\
*
* MCIOLE.C
*
* Modified 19-Oct-1992 by Mike Tricker [MikeTri] Ported to Win32
*
\*****************************************************************************/
// #define USE_MOUSE_HOOK
#ifdef WIN32
#if DBG
#define DEBUG
#endif
#endif
//
// MCIOLE - OLE handler DLL for MCI objects
//
//
// NOTES:
// The whole reason for this handler DLL is to supply the function
//
// OleQueryObjPos()
//
// this function gives information to the server application on the
// location (in the client document) of the activated OLE object.
// the server can use this information to play the object in place
// or position the server window correctly
//
// IMPLEMENTION:
//
// in theory all this DLL (handler) has to do is save the information
// passed to OleActivate(). But in reality no app correctly calls
// OleActivate(). They either pass no information or the wrong
// information.
//
// this DLL is a OLE handler, because of global data (vtblDef!) it
// can only be a handler for one class at a time.
//
// the handler intercepts the OleDraw, OleActivate, and all the
// creation/destuction OLE APIs. for each OLE object a info
// structure is maintained (a OBJINFO structure) when ever the
// client draws (using OleDraw...) the drawing position, and the
// window drawn to is remembered.
//
// when the client calls OleActivate, the saved draw location is
// recalled, or if the app never called OleDraw() (plays
// the meta-file itself) then the rectangle passed to OleActivate()
// is used. (if one is supplied)
//
// there are many classes of apps:
//
// calls OleActivate() with correct info
// calls OleActivate() with incorrect info
// calls OleActivate() with no info
//
// calls OleDraw()
// does not call OleDraw()
//
// here is a table of known OLE Clients....
//
// OleDraw OleActivate()
// App Y or N Y, N, X
// (X = wrong info)
// ------------- ---------- ------------
// Write Y N
// CardFile Y N
// Packager Y N
//
// Excel N N (uses DDE)
// Excel 4.0 N N (uses DDE)
// PowerPnt 2.0 N N (uses DDE)
//
// WinWord N N
// WinWorks Y X
// PowerPnt 3.0 N Y
// MsPublisher N X
// ClTest Y N
// Cirus Y X
// WinProj ? ?
//
// AmiPro Y ?
//
#include <windows.h>
#include <ole.h>
#include <port1632.h>
#include <stdio.h>
#include "mciole.h"
#ifdef WIN32
#include <stdlib.h>
#else
#include <shellapi.h>
#endif
HANDLE ghInstance; // Module handle
BOOL fRunningInWOW; // Dll attached to the WOW process
OLEOBJECTVTBL vtblDll; // these are our functions.
OLEOBJECTVTBL vtblDef; // these are the default functions.
HBITMAP hbmStock;
/******************************************************************************\
**
** The mciole32 shared memory.
**
** This is only used when mplay32 is serving a WOW client. The memory
** always gets mapped into the WOW process. It only gets mapped into
** the mplay32.exe server process if mplay32.exe detects that it is serving
** a WOW client app. Therefore the global variable lpvMem is NULL in all
** other processes.
**
** The memory gets mapped into the mplay32.exe server when it sets the
** the global hook. We can detect that mplay32.exe is serving a WOW client
** because the clients window handle will have 0xFFFF in its HIWORD.
** Of course this is a real hack.
**
** Inside the hook proc we look at lpvMem. If it is NULL we ignore it because
** current process is not WOW or mplay32.exe serving a WOW client.
** We then check to see if the client process id matches the current process
** id. If this is the case we look for interesting mouse message and stop
** the playing in place if we find any.
**
** If lpvMem is not NULL the current process must either by WOW or mplay32.exe
** serving a WOW client, in which case the global fRunningInWOW will be FALSE.
**
**
**
**
\******************************************************************************/
typedef struct {
HWND hwndServer;
DWORD wow_app_thread_id;
} MCIOLE32_SHARED_MEMORY;
MCIOLE32_SHARED_MEMORY *lpvMem;
HANDLE hMapObject = NULL; /* handle to file mapping */
#ifdef DEBUG
RECT rcNull = {0,0,0,0};
UINT oleDebugLevel = 0;
#define PUSHRC(prc) *((prc) ? (prc) : &rcNull)
#define CARETPOS() // {POINT pt; GetCaretPos(&pt); DPRINTF(("CaretPos: [%d, %d]", pt.x, pt.y));}
#endif
/****************************************************************************
****************************************************************************/
void ReplaceFunctions(LPOLEOBJECT);
BOOL CanReplace(LPOLEOBJECT);
#ifndef WIN32
/****************************************************************************
FUNCTION: LibMain(HANDLE hInstance)
****************************************************************************/
BOOL NEAR PASCAL LibMain (HANDLE hInstance)
{
HDC hdc;
HBITMAP hbm;
ghInstance = (HANDLE)hInstance;
//
// get the stock 1x1 mono bitmap.
//
hbm = CreateBitmap(1,1,1,1,NULL);
hdc = CreateCompatibleDC(NULL);
hbmStock = SelectObject(hdc, hbm);
SelectObject(hdc, hbmStock);
DeleteDC(hdc);
DeleteObject(hbm);
// // register clipboard formats.
// cfObjectLink = RegisterClipboardFormat("ObjectLink");
// cfOwnerLink = RegisterClipboardFormat("OwnerLink");
// cfNative = RegisterClipboardFormat("Native");
return TRUE;
}
#else
/****************************************************************************
FUNCTION: DllEntryPoint(HINSTANCE hInstance, DWORD dwReason, LPVOID lpvReserved)
This function is called whenever a process attaches or detaches to/from
the DLL.
****************************************************************************/
BOOL
DllEntryPoint(
HINSTANCE hinstDLL, /* DLL module handle */
DWORD fdwReason, /* reason called */
LPVOID lpvReserved) /* reserved */
{
BOOL fIgnore;
HDC hdc;
HBITMAP hbm;
# define SHMEMSIZE (sizeof(MCIOLE32_SHARED_MEMORY))
switch (fdwReason) {
/*
** DLL is attaching to a process, due to process
** initialization or a call to LoadLibrary.
*/
case DLL_PROCESS_ATTACH:
ghInstance = (HANDLE)hinstDLL;
//
// get the stock 1x1 mono bitmap. why ??
//
hbm = CreateBitmap(1,1,1,1,NULL);
if (NULL != hbm)
{
hdc = CreateCompatibleDC(NULL);
if (NULL != hdc)
{
hbmStock = SelectObject(hdc, hbm);
if (NULL != hbmStock)
SelectObject(hdc, hbmStock);
DeleteDC(hdc);
}
DeleteObject(hbm);
}
#ifdef DEBUG
oleDebugLevel = GetProfileInt("Debug", "MCIOLE32", 0);
#endif
/*
**
**
**
** create named file mapping object
*/
hMapObject = CreateFileMapping(INVALID_HANDLE_VALUE, // use paging file
NULL, // no security attr.
PAGE_READWRITE, // read/write access
0, // size: high 32-bits
SHMEMSIZE, // size: low 32-bits
"mciole32shrmem"); // name of map object
if (hMapObject == NULL) {
return FALSE;
}
/*
** The first process to attach initializes memory.
**
** fInit = (GetLastError() != ERROR_ALREADY_EXISTS);
**
*/
/*
** Are we attaching to the WOW process ?
** If so the we map the shared memory into the process.
*/
fRunningInWOW = (GetModuleHandle( "WOW32.DLL" ) != NULL);
if ( fRunningInWOW ) {
DPRINTF(( "Attaching shared memory to WOW process" ));
/*
** Get a pointer to file mapped shared memory.
*/
lpvMem = MapViewOfFile( hMapObject, FILE_MAP_WRITE, 0, 0, 0 );
if (lpvMem == NULL) {
fIgnore = CloseHandle(hMapObject);
return FALSE;
}
}
break;
case DLL_THREAD_ATTACH:
/*
** The attached process creates a new thread.
*/
break;
case DLL_THREAD_DETACH:
/*
** The thread of the attached process terminates.
*/
break;
case DLL_PROCESS_DETACH:
/*
** The DLL is detaching from a process, due to
** process termination or a call to FreeLibrary.
**
** Unmap shared memory from process' address space. But only
** if it was mapped.
*/
if ( lpvMem ) {
#ifdef DEBUG
if ( fRunningInWOW ) {
DPRINTF(( "Unmapping shared memory from WOW process" ));
}
#endif
fIgnore = UnmapViewOfFile(lpvMem);
}
/*
** Close the process' handle to the file-mapping object.
*/
fIgnore = CloseHandle(hMapObject);
break;
default:
break;
}
return TRUE;
}
#endif
#ifndef WIN32
/****************************************************************************
FUNCTION: WEP(int)
PURPOSE: Standard exit routine for the DLL
****************************************************************************/
int FAR PASCAL _LOADDS WEP(nParameter)
int nParameter;
{
return 1;
}
/****************************************************************************
****************************************************************************/
BOOL NEAR PASCAL IsApp(LPSTR szApp)
{
char ach[80];
int i;
WORD wStack;
_asm mov wStack,ss
GetModuleFileName((HINSTANCE)wStack, ach, sizeof(ach));
for (i = lstrlen(ach);
i > 0 && ach[i-1] != '\\' && ach[i-1] != '/' && ach[i] != ':';
i--)
;
return lstrcmpi(ach + i, szApp) == 0;
}
#endif //!WIN32
/****************************************************************************
****************************************************************************/
BOOL NEAR PASCAL IsDcMemory(HDC hdc)
{
HBITMAP hbmT;
if (hbmT = SelectObject(hdc, hbmStock))
SelectObject(hdc, hbmT);
return hbmT != NULL;
}
/****************************************************************************
****************************************************************************/
typedef struct _OBJINFO {
struct _OBJINFO*poiNext;
LPOLEOBJECT lpobj; // client side LPOLEOBJECT
HWND hwnd; // client window (passed to OleActivate)
RECT rcActivate; // activation rectangle (passed to OleActivate)
HWND hwndDraw; // active window at time of OleDraw
RECT rcDraw; // rectangle of draw
} OBJINFO;
BOOL RegSetGetData(OBJINFO *poi, BOOL Write)
{
LONG Length;
static CHAR szKey[] = "PlayData";
static CHAR szFormat[] = "%ld %ld %d %d %d %d %d %d %d %d";
if (Write) {
LONG Rc;
CHAR Data[100];
//
// Store hwnd, hwnddraw, rcDraw, rcActivate
//
#ifdef WIN32
wsprintf(Data, szFormat,
(LONG_PTR)poi->hwnd,
(LONG_PTR)poi->hwndDraw,
poi->rcDraw.left,
poi->rcDraw.right,
poi->rcDraw.top,
poi->rcDraw.bottom,
poi->rcActivate.left,
poi->rcActivate.right,
poi->rcActivate.top,
poi->rcActivate.bottom);
#else
wsprintf(Data, szFormat,
(LONG)(poi->hwnd == NULL ? (LONG)0 : MAKELONG(poi->hwnd, 0xFFFF)),
(LONG)(poi->hwndDraw == NULL ? (LONG)0 : MAKELONG(poi->hwndDraw, 0xFFFF)),
poi->rcDraw.left,
poi->rcDraw.right,
poi->rcDraw.top,
poi->rcDraw.bottom,
poi->rcActivate.left,
poi->rcActivate.right,
poi->rcActivate.top,
poi->rcActivate.bottom);
#endif
Rc = RegSetValue(HKEY_CLASSES_ROOT,
szKey,
REG_SZ,
Data,
lstrlen(Data));
return Rc == ERROR_SUCCESS;
} else {
#ifdef WIN32
LONG Rc;
CHAR Data[100];
Length = sizeof(Data);
Rc = RegQueryValue(HKEY_CLASSES_ROOT, szKey,
Data, &Length);
RegSetValue(HKEY_CLASSES_ROOT, szKey, REG_SZ, "", 0);
//
// Extract our data - sscanf doesn't work yet!!!
//
if (Rc == ERROR_SUCCESS) {
LONG OurData[10];
int i;
LPTSTR lpData;
for (i = 0, lpData = Data; i < 10; i++) {
OurData[i] = atol(lpData);
while (*lpData != ' ' && *lpData != '\0') {
lpData++;
}
if (*lpData == ' ') {
lpData++;
}
}
poi->hwnd = (HWND)(UINT_PTR)OurData[0];
poi->hwndDraw = (HWND)(UINT_PTR)OurData[1];
poi->rcDraw.left = OurData[2];
poi->rcDraw.right = OurData[3];
poi->rcDraw.top = OurData[4];
poi->rcDraw.bottom = OurData[5];
poi->rcActivate.left = OurData[6];
poi->rcActivate.right = OurData[7];
poi->rcActivate.top = OurData[8];
poi->rcActivate.bottom = OurData[9];
}
return Rc == ERROR_SUCCESS && Length != 0;
#else
return FALSE;
#endif
}
}
#ifdef DEBUG
int nObjects = 0;
#endif
OBJINFO *poiFirst = NULL;
OBJINFO *FindObj(LPOLEOBJECT lpobj)
{
OBJINFO *poi;
for (poi=poiFirst; poi; poi=poi->poiNext)
if (poi->lpobj == lpobj)
return poi;
DPRINTF(("FindObj: Unable to find object %lx", lpobj));
return NULL;
}
void DelObj(LPOLEOBJECT lpobj)
{
OBJINFO *poi;
OBJINFO *poiT;
for (poiT=NULL,poi=poiFirst; poi; poiT=poi,poi=poi->poiNext)
{
if (poi->lpobj == lpobj)
{
if (poiT)
poiT->poiNext = poi->poiNext;
else
poiFirst = poi->poiNext;
poi->lpobj = NULL;
LocalFree((HLOCAL)poi);
DPRINTF(("DelObj(%lx): %d objects", lpobj, --nObjects));
return;
}
}
DPRINTF(("DelObj(%lx): Cant find object to delete.", lpobj));
}
//
// for some reason we dont get all the OleDelete() calls that we should
// so lets try to "weed out the bad apples" so we dont choke.
//
void CleanObjects()
{
OBJINFO *poi;
again:
for (poi=poiFirst; poi; poi=poi->poiNext)
{
if (IsBadReadPtr(poi->lpobj, 0))
{
DPRINTF(("Freeing bad object %lx", poi->lpobj));
DelObj(poi->lpobj);
goto again;
}
}
}
OBJINFO *NewObj(LPOLEOBJECT lpobj)
{
OBJINFO *poi;
CleanObjects();
if (poi = FindObj(lpobj))
{
DPRINTF(("NewObj(%lx): Trying to add object twice!", lpobj));
return poi;
}
if (poi = (OBJINFO*)LocalAlloc(LPTR, sizeof(OBJINFO)))
{
poi->lpobj = lpobj;
poi->hwnd = NULL;
poi->hwndDraw = NULL;
SetRectEmpty(&poi->rcDraw);
SetRectEmpty(&poi->rcActivate);
poi->poiNext = poiFirst;
poiFirst = poi;
DPRINTF(("NewObj(%lx): %d objects", lpobj, ++nObjects));
}
else
{
DPRINTF(("NewObj(%lx): Out of room in the object table", lpobj));
}
return poi;
}
/****************************************************************************
****************************************************************************/
#ifndef WIN32
HWND LookForDC(HWND hwndP, HDC hdc)
{
RECT rc;
DWORD dw;
HWND hwnd;
if (hwndP == NULL)
return NULL;
dw = GetDCOrg(hdc);
for (hwnd = hwndP; hwnd; hwnd = GetWindow(hwnd, GW_HWNDNEXT))
{
GetClientRect(hwnd, &rc);
ClientToScreen(hwnd, (LPPOINT)&rc);
ClientToScreen(hwnd, (LPPOINT)&rc+1);
if ((int)LOWORD(dw) == rc.left && (int)HIWORD(dw) == rc.top)
return hwnd;
if (PtInRect(&rc, MAKEPOINT(dw)) && (hwndP = GetWindow(hwnd, GW_CHILD)))
if (hwndP = LookForDC(hwndP,hdc))
return hwndP;
}
return NULL;
}
HWND WindowFromDC(HDC hdc)
{
return LookForDC(GetDesktopWindow(), hdc);
}
#endif
/****************************************************************************
****************************************************************************/
BOOL RectSameSize(LPRECT lprc1, LPRECT lprc2)
{
return lprc1->right - lprc1->left == lprc2->right - lprc2->left &&
lprc1->bottom - lprc1->top == lprc2->bottom - lprc2->top;
}
/****************************************************************************
OleQueryObjPos - this function retuns the last drawn or activated
position of a object
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS OleQueryObjPos(
LPOLEOBJECT lpobj, /* object to query */
HWND FAR * lphwnd, /* window of the document containing the object */
LPRECT lprc, /* rect (client cords) of object. */
LPRECT lprcWBounds)/* rect (client cords) of bounding rect. */
{
OBJINFO oi;
//
// we dont do this any more
//
if (lprcWBounds)
SetRectEmpty(lprcWBounds);
//
// because the server side calls this API the passed lpobj is
// a server side LPOLEOBJECT, we can't search our table for this
// object.
//
// this API is only callable by the server during the DoVerb
// server callback
//
//!!! this only works for the last active object!!!!
DPRINTF(("OleQueryObjPos(%lx)", lpobj));
if (RegSetGetData(&oi, FALSE))
{
*lphwnd = oi.hwnd;
// if (IsRectEmpty(&oi.rcActivate))
if (!IsRectEmpty(&oi.rcDraw))
{
DPRINTF(("Using the OleDraw() rectange...."));
//
// use the draw rectangle
//
*lprc = oi.rcDraw;
if (oi.hwndDraw)
{
ClientToScreen(oi.hwndDraw, (LPPOINT)lprc);
ClientToScreen(oi.hwndDraw, (LPPOINT)lprc+1);
}
ScreenToClient(oi.hwnd, (LPPOINT)lprc);
ScreenToClient(oi.hwnd, (LPPOINT)lprc+1);
}
else
{
//
// use the activate rectangle
//
*lprc = oi.rcActivate;
}
if (oi.hwnd && !IsRectEmpty(lprc))
return OLE_OK;
else
return OLE_ERROR_BLANK; // return a error, we dont know about this OBJ
}
else
{
*lphwnd = NULL;
SetRectEmpty(lprc);
return OLE_ERROR_BLANK; // return a error, we dont know about this OBJ
}
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllLoadFromStream (lpstream, lpprotocol, lpclient, lhclientdoc, lpobjname, lplpobj, objType, aClass, cfFormat)
LPOLESTREAM lpstream;
LPSTR lpprotocol;
LPOLECLIENT lpclient;
LHCLIENTDOC lhclientdoc;
LPSTR lpobjname;
LPOLEOBJECT FAR * lplpobj;
LONG objType;
ATOM aClass;
OLECLIPFORMAT cfFormat;
{
OLESTATUS retVal;
DPRINTF(("OleLoadFromStream(%s,%s)", lpprotocol, lpobjname));
retVal = DefLoadFromStream (lpstream, lpprotocol, lpclient,
lhclientdoc, lpobjname, lplpobj,
objType, aClass, cfFormat);
if (retVal <= OLE_WAIT_FOR_RELEASE)
ReplaceFunctions(*lplpobj);
return retVal;
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllCreateFromClip (lpprotocol, lpclient, lhclientdoc, lpobjname, lplpobj, optRender, cfFormat, objType)
LPSTR lpprotocol;
LPOLECLIENT lpclient;
LHCLIENTDOC lhclientdoc;
LPSTR lpobjname;
LPOLEOBJECT FAR * lplpobj;
OLEOPT_RENDER optRender;
OLECLIPFORMAT cfFormat;
LONG objType;
{
OLESTATUS retVal;
DPRINTF(("OleCreateFromClip(%s,%s)", lpprotocol, lpobjname));
retVal = DefCreateFromClip (lpprotocol, lpclient,
lhclientdoc, lpobjname, lplpobj,
optRender, cfFormat, objType);
if (retVal <= OLE_WAIT_FOR_RELEASE)
ReplaceFunctions(*lplpobj);
return retVal;
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllCreateLinkFromClip (lpprotocol, lpclient, lhclientdoc, lpobjname, lplpobj, optRender, cfFormat)
LPSTR lpprotocol;
LPOLECLIENT lpclient;
LHCLIENTDOC lhclientdoc;
LPSTR lpobjname;
LPOLEOBJECT FAR * lplpobj;
OLEOPT_RENDER optRender;
OLECLIPFORMAT cfFormat;
{
OLESTATUS retVal;
BOOL bReplace = FALSE;
DPRINTF(("OleCreateLinkFromClip(%s,%s)", lpprotocol, lpobjname));
retVal = DefCreateLinkFromClip (lpprotocol, lpclient,
lhclientdoc, lpobjname, lplpobj,
optRender, cfFormat);
if (retVal <= OLE_WAIT_FOR_RELEASE)
ReplaceFunctions(*lplpobj);
return retVal;
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllCreateFromTemplate (lpprotocol, lpclient, lptemplate, lhclientdoc, lpobjname, lplpobj, optRender, cfFormat)
LPSTR lpprotocol;
LPOLECLIENT lpclient;
LPSTR lptemplate;
LHCLIENTDOC lhclientdoc;
LPSTR lpobjname;
LPOLEOBJECT FAR * lplpobj;
OLEOPT_RENDER optRender;
OLECLIPFORMAT cfFormat;
{
OLESTATUS retVal;
DPRINTF(("OleCreateFromTemplate(%s,%s,%s)", lpprotocol, lptemplate, lpobjname));
retVal = DefCreateFromTemplate (lpprotocol, lpclient, lptemplate,
lhclientdoc, lpobjname, lplpobj,
optRender, cfFormat);
if (retVal <= OLE_WAIT_FOR_RELEASE)
ReplaceFunctions(*lplpobj);
return retVal;
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllCreate (lpprotocol, lpclient, lpclass, lhclientdoc, lpobjname, lplpobj, optRender, cfFormat)
LPSTR lpprotocol;
LPOLECLIENT lpclient;
LPSTR lpclass;
LHCLIENTDOC lhclientdoc;
LPSTR lpobjname;
LPOLEOBJECT FAR * lplpobj;
OLEOPT_RENDER optRender;
OLECLIPFORMAT cfFormat;
{
OLESTATUS retVal;
DPRINTF(("OleCreate(%s,%s,%s)", lpprotocol, lpclass, lpobjname));
retVal = DefCreate (lpprotocol, lpclient, lpclass,
lhclientdoc, lpobjname, lplpobj,
optRender, cfFormat);
if (retVal <= OLE_WAIT_FOR_RELEASE)
ReplaceFunctions(*lplpobj);
return retVal;
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllCreateFromFile (lpprotocol, lpclient, lpclass, lpfile, lhclientdoc, lpobjname, lplpobj, optRender, cfFormat)
LPSTR lpprotocol;
LPOLECLIENT lpclient;
LPSTR lpclass;
LPSTR lpfile;
LHCLIENTDOC lhclientdoc;
LPSTR lpobjname;
LPOLEOBJECT FAR * lplpobj;
OLEOPT_RENDER optRender;
OLECLIPFORMAT cfFormat;
{
OLESTATUS retVal;
DPRINTF(("OleCreateFromFile(%s,%s,%s,%s)", lpprotocol, lpclass, lpfile, lpobjname));
retVal = DefCreateFromFile (lpprotocol, lpclient, lpclass, lpfile,
lhclientdoc, lpobjname, lplpobj,
optRender, cfFormat);
if (retVal <= OLE_WAIT_FOR_RELEASE)
ReplaceFunctions(*lplpobj);
return retVal;
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllCreateLinkFromFile (lpprotocol, lpclient, lpclass, lpfile, lpitem, lhclientdoc, lpobjname, lplpobj, optRender, cfFormat)
LPSTR lpprotocol;
LPOLECLIENT lpclient;
LPSTR lpclass;
LPSTR lpfile;
LPSTR lpitem;
LHCLIENTDOC lhclientdoc;
LPSTR lpobjname;
LPOLEOBJECT FAR * lplpobj;
OLEOPT_RENDER optRender;
OLECLIPFORMAT cfFormat;
{
OLESTATUS retVal;
DPRINTF(("OleCreateLinkFromFile(%s,%s,%s,%s,%s)", lpprotocol, lpclass, lpfile, lpitem, lpobjname));
retVal = DefCreateLinkFromFile (lpprotocol, lpclient,
lpclass, lpfile, lpitem,
lhclientdoc, lpobjname, lplpobj,
optRender, cfFormat);
if (retVal <= OLE_WAIT_FOR_RELEASE)
ReplaceFunctions(*lplpobj);
return retVal;
}
/****************************************************************************
****************************************************************************/
void ReplaceFunctions(LPOLEOBJECT lpobj)
{
// OBJINFO *poi;
if (!CanReplace(lpobj))
return;
NewObj(lpobj);
//
// get the default handlers
//
if (vtblDef.Draw == NULL) // only get the handlers once!
vtblDef = *lpobj->lpvtbl; // save default handlers
//
// make the OLE object use our handlers
//
lpobj->lpvtbl = (LPOLEOBJECTVTBL)&vtblDll;
//
// init our VTBL, ie replace any handlers we want to override.
// any handlers we dont replace we set the the default ones.
//
vtblDll = vtblDef;
////(FARPROC)vtblDll.QueryProtocol = (FARPROC)DllQueryProtocol;
////(FARPROC)vtblDll.Release = (FARPROC)DllRelease;
////(FARPROC)vtblDll.Show = (FARPROC)DllShow;
////(FARPROC)vtblDll.DoVerb = (FARPROC)DllDoVerb;
////(FARPROC)vtblDll.GetData = (FARPROC)DllGetData;
////(FARPROC)vtblDll.SetData = (FARPROC)DllSetData;
////(FARPROC)vtblDll.SetTargetDevice = (FARPROC)DllSetTargetDevice;
////(FARPROC)vtblDll.SetBounds = (FARPROC)DllSetBounds;
////(FARPROC)vtblDll.EnumFormats = (FARPROC)DllEnumFormats;
////(FARPROC)vtblDll.SetColorScheme = (FARPROC)DllSetColorScheme;
(FARPROC)vtblDll.Delete = (FARPROC)DllDelete;
////(FARPROC)vtblDll.SetHostNames = (FARPROC)DllSetHostNames;
////(FARPROC)vtblDll.SaveToStream = (FARPROC)DllSaveToStream;
(FARPROC)vtblDll.Clone = (FARPROC)DllClone;
(FARPROC)vtblDll.CopyFromLink = (FARPROC)DllCopyFromLink;
////(FARPROC)vtblDll.Equal = (FARPROC)DllEqual;
////(FARPROC)vtblDll.CopyToClipboard = (FARPROC)DllCopyToClipboard;
(FARPROC)vtblDll.Draw = (FARPROC)DllDraw;
(FARPROC)vtblDll.Activate = (FARPROC)DllActivate;
////(FARPROC)vtblDll.Execute = (FARPROC)DllExecute;
////(FARPROC)vtblDll.Close = (FARPROC)DllClose;
////(FARPROC)vtblDll.Update = (FARPROC)DllUpdate;
////(FARPROC)vtblDll.Reconnect = (FARPROC)DllReconnect;
(FARPROC)vtblDll.ObjectConvert = (FARPROC)DllObjectConvert;
////(FARPROC)vtblDll.GetLinkUpdateOptions = (FARPROC)DllGetLinkUpdateOptions;
////(FARPROC)vtblDll.SetLinkUpdateOptions = (FARPROC)DllSetLinkUpdateOptions;
////(FARPROC)vtblDll.Rename = (FARPROC)DllRename;
////(FARPROC)vtblDll.QueryName = (FARPROC)DllQueryName;
////(FARPROC)vtblDll.QueryType = (FARPROC)DllQueryType;
////(FARPROC)vtblDll.QueryBounds = (FARPROC)DllQueryBounds;
////(FARPROC)vtblDll.QuerySize = (FARPROC)DllQuerySize;
////(FARPROC)vtblDll.QueryOpen = (FARPROC)DllQueryOpen;
////(FARPROC)vtblDll.QueryOutOfDate = (FARPROC)DllQueryOutOfDate;
////(FARPROC)vtblDll.QueryReleaseStatus = (FARPROC)DllQueryReleaseStatus;
////(FARPROC)vtblDll.QueryReleaseError = (FARPROC)DllQueryReleaseError;
////(FARPROC)vtblDll.QueryReleaseMethod = (FARPROC)DllQueryReleaseMethod;
////(FARPROC)vtblDll.RequestData = (FARPROC)DllRequestData;
////(FARPROC)vtblDll.ObjectLong = (FARPROC)DllObjectLong;
////(FARPROC)vtblDll.ChangeData = (FARPROC)DllChangeData;
}
/****************************************************************************
****************************************************************************/
BOOL CanReplace(LPOLEOBJECT lpobj)
{
#if 0 // did not work anyway.
//
// we dont work on the wierd OLE shipped with PenWindows so don't load
//
#ifndef WIN32
#pragma message("Disabling handler because we are on PenWindows...")
#endif //!WIN32
if (GetSystemMetrics(SM_PENWINDOWS))
return FALSE;
#endif
return TRUE;
}
/****************************************************************************
****************************************************************************/
LPVOID GetData(LPOLEOBJECT lpobj, WORD cf)
{
HANDLE h;
if ( (*vtblDef.GetData)(lpobj, cf, &h) != OLE_OK || h == NULL)
return NULL;
return GlobalLock(h);
}
/****************************************************************************
these are the actual handlers.....
****************************************************************************/
/****************************************************************************
****************************************************************************/
LPVOID FAR PASCAL _LOADDS DllQueryProtocol (
LPOLEOBJECT lpobj,
LPSTR lpsz)
{
DPRINTF(("OleQueryProtocol(%ls)", lpsz));
return vtblDef.QueryProtocol(lpobj, lpsz);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllRelease (
LPOLEOBJECT lpobj)
{
DPRINTF(("OleRelease()"));
return vtblDef.Release(lpobj);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllShow (
LPOLEOBJECT lpobj,
BOOL fShow)
{
DPRINTF(("OleShow(%d)", fShow));
return vtblDef.Show(lpobj, fShow);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllDoVerb (
LPOLEOBJECT lpobj,
UINT verb,
BOOL fShow,
BOOL fActivate)
{
DPRINTF(("OleDoVerb(%d, %d, %d)", verb, fShow, fActivate));
return vtblDef.DoVerb(lpobj, verb, fShow, fActivate);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllGetData (
LPOLEOBJECT lpobj,
OLECLIPFORMAT cf,
LPHANDLE lph)
{
DPRINTF(("OleGetData(%d)", cf));
return vtblDef.GetData(lpobj, cf, lph);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllSetData (
LPOLEOBJECT lpobj,
OLECLIPFORMAT cf,
HANDLE h)
{
DPRINTF(("OleSetData(%d, %d)", cf, h));
return vtblDef.SetData(lpobj, cf, h);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllSetTargetDevice (
LPOLEOBJECT lpobj,
HANDLE h)
{
DPRINTF(("OleSetTargetDevice()"));
return vtblDef.SetTargetDevice(lpobj, h);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllSetBounds (
LPOLEOBJECT lpobj,
LPRECT lprc)
{
DPRINTF(("OleSetBounds([%d,%d,%d,%d])", PUSHRC(lprc)));
return vtblDef.SetBounds(lpobj, lprc);
}
/****************************************************************************
****************************************************************************/
OLECLIPFORMAT FAR PASCAL _LOADDS DllEnumFormats (
LPOLEOBJECT lpobj,
OLECLIPFORMAT cf)
{
DPRINTF(("OleEnumFormats(%d)", cf));
return vtblDef.EnumFormats(lpobj, cf);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllSetColorScheme (
LPOLEOBJECT lpobj,
LPLOGPALETTE lppal)
{
DPRINTF(("OleSetColorScheme()"));
return vtblDef.SetColorScheme(lpobj, lppal);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllDelete (
LPOLEOBJECT lpobj)
{
DPRINTF(("OleDelete(%lx)", lpobj));
DelObj(lpobj);
CleanObjects();
return vtblDef.Delete(lpobj);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllSetHostNames (
LPOLEOBJECT lpobj,
LPSTR szClientName,
LPSTR szDocName)
{
DPRINTF(("OleSetHostNames(%ls,%ls)", szClientName, szDocName));
return vtblDef.SetHostNames(lpobj, szClientName, szDocName);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllSaveToStream (
LPOLEOBJECT lpobj,
LPOLESTREAM lpstream)
{
DPRINTF(("OleSaveToStream()"));
return vtblDef.SaveToStream(lpobj, lpstream);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllClone (
LPOLEOBJECT lpobj,
LPOLECLIENT lpClient,
LHCLIENTDOC lhClientDoc,
LPSTR szObjName,
LPOLEOBJECT FAR*lplpobj)
{
OLESTATUS err;
DPRINTF(("OleClone(%ls)", szObjName));
err = vtblDef.Clone(lpobj, lpClient, lhClientDoc, szObjName, lplpobj);
//
// if the object cloned correctly then clone our object information
//
if (err <= OLE_WAIT_FOR_RELEASE)
{
OBJINFO *poi, *poiT;
if ((poiT = FindObj(lpobj)) && (poi = NewObj(NULL)))
{
poi->lpobj = *lplpobj;
poi->hwnd = poiT->hwnd;
poi->rcActivate = poiT->rcActivate;
poi->hwndDraw = poiT->hwndDraw;
poi->rcDraw = poiT->rcDraw;
}
}
return err;
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllCopyFromLink (
LPOLEOBJECT lpobj,
LPOLECLIENT lpClient,
LHCLIENTDOC lhClientDoc,
LPSTR szObjName,
LPOLEOBJECT FAR*lplpobj)
{
OLESTATUS err;
DPRINTF(("OleCopyFromLink(%ls)", szObjName));
err = vtblDef.CopyFromLink(lpobj, lpClient, lhClientDoc, szObjName, lplpobj);
if (err <= OLE_WAIT_FOR_RELEASE)
NewObj(*lplpobj);
return err;
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllEqual (
LPOLEOBJECT lpobj1,
LPOLEOBJECT lpobj2)
{
DPRINTF(("OleEqual()"));
return vtblDef.Equal(lpobj1, lpobj2);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllCopyToClipboard (
LPOLEOBJECT lpobj)
{
DPRINTF(("OleCopyToClipboard()"));
return vtblDef.CopyToClipboard(lpobj);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllDraw (
LPOLEOBJECT lpobj,
HDC hdc,
LPRECT lprcBounds,
LPRECT lprcWBounds,
HDC hdcFormat)
{
OBJINFO *poi;
RECT rc;
DPRINTF(("OleDraw(%lx,[%d,%d,%d,%d], [%d,%d,%d,%d])", lpobj, PUSHRC(lprcBounds), PUSHRC(lprcWBounds)));
#ifdef DEBUG
if (OleIsDcMeta(hdc))
DPRINTF(("OleDraw: drawing to a meta-file"));
else if (IsDcMemory(hdc))
DPRINTF(("OleDraw: drawing to a bitmap"));
#endif
if ((poi = FindObj(lpobj)) && !OleIsDcMeta(hdc) && !IsDcMemory(hdc))
{
//!!!get the window from the HDC!!!
poi->hwndDraw = WindowFromDC(hdc);
DPRINTF(("OleDraw: hwndDraw = %04X", poi->hwndDraw));
if (lprcBounds && !IsRectEmpty(lprcBounds))
{
poi->rcDraw = *lprcBounds;
//
// convert the bound rectange into coordinates.
// relative to hwndDraw
//
LPtoDP(hdc, (LPPOINT)&poi->rcDraw, 2);
if (poi->hwndDraw == NULL)
{
#ifdef WIN32
POINT pTemp;
if (GetDCOrgEx(hdc, &pTemp)) {
OffsetRect(&poi->rcDraw, pTemp.x, pTemp.y);
}
#else
DWORD dw;
dw = GetDCOrg(hdc);
OffsetRect(&poi->rcDraw, LOWORD(dw), HIWORD(dw));
#endif
}
}
if (GetClipBox(hdc, &rc) == NULLREGION)
return OLE_OK;
}
return vtblDef.Draw(lpobj, hdc, lprcBounds, lprcWBounds, hdcFormat);
}
/****************************************************************************
scan WinWords stack and "extract" the info it should have passed to
OleActivate() this has been tested with WinWord 2.0 and 2.0a.
we expect future verisons of WinWord to pass the correct info to
OleActivate() so we will never get here.
****************************************************************************/
#ifndef WIN32
BOOL NEAR PASCAL GetOpusRect(LPRECT lprcBound)
{
LPRECT lprc;
LPVOID lp;
int i,dx,dy;
//
// see if the current app is WinWord
//
if (!IsApp("WINWORD.EXE"))
return FALSE;
//
// lets scan the stack looking for a RECT, this is a total
// hack to get MSWORD to work.
//
_asm
{
mov bx,ss:[bp] ; get saved BP DllActivate()
and bx, not 1
mov bx,ss:[bx] ; get saved saved BP OleActivate()
and bx, not 1
mov bx,ss:[bx] ; get saved saved saved BP "winword"
and bx, not 1
mov word ptr lp[0], bx
mov word ptr lp[2], ss
}
#ifdef DEBUG
DPRINTF(("****** SCANING WINWORDs STACK ********"));
lprc = lp;
for (i=0; i<1000; i++)
{
dx = lprc->right - lprc->left;
dy = lprc->bottom - lprc->top;
if (dx >= 158 && dx <= 162 &&
dy >= 118 && dy <= 122)
{
DPRINTF(("found a RECT at offset %d, [%d, %d, %d, %d]",
(LPBYTE)lprc - (LPBYTE)lp, PUSHRC(lprc)));
}
((LPBYTE)lprc)++;
}
DPRINTF(("**************************************"));
#endif
lprc = (LPRECT)((LPBYTE)lp + 6);
if (lprc->right - lprc->left > 0 && lprc->bottom - lprc->top > 0)
{
DPRINTF(("*** HACK FOR WINWORD, [%d, %d, %d, %d]", PUSHRC(lprc)));
*lprcBound = *lprc;
return TRUE;
}
return FALSE;
}
#endif //!WIN32
#ifdef WIN32
/*
** This is a pointer to the currently playing ole object. It is only
** valid in the context of the client application.
**
*/
LPOLEOBJECT lpobjPlaying;
HWND hwndOleServer;
/*
** These are the process and thread ID's of the currently
** playing client application. These variables have the value 0 in all
** other applications.
**
*/
DWORD dwProcessIDPlaying;
#endif
/****************************************************************************
Note the use of a BOOL to pass an HWND in this fine piece of code...
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllActivate (
LPOLEOBJECT lpobj,
WORD verb,
BOOL fShow,
BOOL fActivate,
HWND hwnd,
LPRECT lprcBound)
{
OBJINFO *poi;
RECT rc;
DPRINTF(("OleActivate(%lx, %d, %d, %d, %04X, [%d,%d,%d,%d])", lpobj, verb, fShow, fActivate, hwnd, PUSHRC(lprcBound)));
#ifdef WIN32
lpobjPlaying = lpobj;
dwProcessIDPlaying = GetCurrentProcessId();
#endif
//
// hack for Write
//
if (IsWindow((HWND)(UINT_PTR)fActivate))
{
DPRINTF(("OleActivate: Write pre-realase work around"));
hwnd = (HWND)(UINT_PTR)fActivate;
fActivate = TRUE;
}
if (poi = FindObj(lpobj))
{
poi->hwnd = hwnd;
if (poi->hwnd == NULL)
{
if (GetFocus())
{
DPRINTF(("OleActivate: no window specifed, using the focus window"));
poi->hwnd = GetFocus();
}
else
{
DPRINTF(("OleActivate: no window specifed, using the active window"));
poi->hwnd = GetActiveWindow();
}
}
if (lprcBound && !IsRectEmpty(lprcBound))
{
poi->rcActivate = *lprcBound;
}
#ifndef WIN32
else
{
GetOpusRect(&poi->rcActivate);
}
#endif //!WIN32
//
// MS-Publisher gives use the *wrong* rectangle in the OleActivate call
// and never calls OleDraw() we are hosed!
//
// so we check if the rect is off in space, and dont use it if so.
//
if (poi->hwnd)
{
GetClientRect(poi->hwnd, &rc);
IntersectRect(&rc,&rc,&poi->rcActivate);
if (IsRectEmpty(&rc))
{
DPRINTF(("OleActivate: rectangle specifed is not valid"));
SetRectEmpty(&poi->rcActivate);
}
}
if (IsRectEmpty(&poi->rcActivate))
{
DPRINTF(("OleActivate: stupid ole app!!!"));
}
//
// Shove it in the registry
//
{
RegSetGetData(poi, TRUE);
}
}
return vtblDef.Activate(lpobj, verb, fShow, fActivate, hwnd, lprcBound);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllExecute (
LPOLEOBJECT lpobj,
HANDLE hCmds,
WORD reserved)
{
DPRINTF(("OleExecute(%ls)", GlobalLock(hCmds)));
return vtblDef.Execute(lpobj, hCmds, reserved);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllClose (
LPOLEOBJECT lpobj)
{
DPRINTF(("OleClose(%lx)", lpobj));
////DelObj(lpobj);
return vtblDef.Close(lpobj);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllUpdate (
LPOLEOBJECT lpobj)
{
DPRINTF(("OleUpdate()"));
return vtblDef.Update(lpobj);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllReconnect (
LPOLEOBJECT lpobj)
{
DPRINTF(("OleReconnect()"));
return vtblDef.Reconnect(lpobj);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllObjectConvert (
LPOLEOBJECT lpobj,
LPSTR szProtocol,
LPOLECLIENT lpClient,
LHCLIENTDOC lhClientDoc,
LPSTR szObjName,
LPOLEOBJECT FAR*lplpobj)
{
OLESTATUS err;
DPRINTF(("OleObjectConvert(%ls,%ls)", szProtocol, szObjName));
err = vtblDef.ObjectConvert(lpobj, szProtocol, lpClient, lhClientDoc, szObjName, lplpobj);
if (err <= OLE_WAIT_FOR_RELEASE)
NewObj(*lplpobj);
return err;
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllGetLinkUpdateOptions (
LPOLEOBJECT lpobj,
OLEOPT_UPDATE FAR *lpoleopt)
{
DPRINTF(("OleGetLinkUpdateOptions()"));
return vtblDef.GetLinkUpdateOptions(lpobj, lpoleopt);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllSetLinkUpdateOptions (
LPOLEOBJECT lpobj,
OLEOPT_UPDATE oleopt)
{
DPRINTF(("OleSetLinkUpdateOptions()"));
return vtblDef.SetLinkUpdateOptions(lpobj, oleopt);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllRename (
LPOLEOBJECT lpobj,
LPSTR szName)
{
DPRINTF(("OleRename(%ls)", szName));
return vtblDef.Rename(lpobj, szName);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllQueryName (
LPOLEOBJECT lpobj,
LPSTR szObjName,
UINT FAR * lpwSize)
{
DPRINTF(("OleQueryName(%ls)", szObjName));
return vtblDef.QueryName(lpobj, szObjName, lpwSize);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllQueryType (
LPOLEOBJECT lpobj,
LPLONG lpType)
{
DPRINTF(("OleQueryType()"));
return vtblDef.QueryType(lpobj, lpType);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllQueryBounds (
LPOLEOBJECT lpobj,
LPRECT lprc)
{
DPRINTF(("OleQueryBounds()"));
return vtblDef.QueryBounds(lpobj, lprc);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllQuerySize (
LPOLEOBJECT lpobj,
DWORD FAR * lpdwSize)
{
DPRINTF(("OleQuerySize()"));
return vtblDef.QuerySize(lpobj, lpdwSize);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllQueryOpen (
LPOLEOBJECT lpobj)
{
DPRINTF(("OleQueryOpen()"));
return vtblDef.QueryOpen(lpobj);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllQueryOutOfDate (
LPOLEOBJECT lpobj)
{
DPRINTF(("OleQueryOutOfDate()"));
return vtblDef.QueryOutOfDate(lpobj);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllQueryReleaseStatus (
LPOLEOBJECT lpobj)
{
DPRINTF(("OleQueryReleaseStatus()"));
return vtblDef.QueryReleaseStatus(lpobj);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllQueryReleaseError (
LPOLEOBJECT lpobj)
{
DPRINTF(("OleQueryReleaseError()"));
return vtblDef.QueryReleaseError(lpobj);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllRequestData (
LPOLEOBJECT lpobj,
OLECLIPFORMAT cf)
{
DPRINTF(("OleRequestData(%d)", cf));
return vtblDef.RequestData(lpobj, cf);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllObjectLong (
LPOLEOBJECT lpobj,
UINT u,
LPLONG lpl)
{
DPRINTF(("OleObjectLong()"));
return vtblDef.ObjectLong(lpobj, u, lpl);
}
/****************************************************************************
****************************************************************************/
OLE_RELEASE_METHOD FAR PASCAL _LOADDS DllQueryReleaseMethod (
LPOLEOBJECT lpobj)
{
DPRINTF(("OleQueryReleaseMethod()"));
return vtblDef.QueryReleaseMethod(lpobj);
}
/****************************************************************************
****************************************************************************/
OLESTATUS FAR PASCAL _LOADDS DllChangeData (
LPOLEOBJECT lpobj,
HANDLE h,
LPOLECLIENT lpClient,
BOOL f)
{
DPRINTF(("OleChangeData()"));
return vtblDef.ChangeData(lpobj, h, lpClient, f);
}
///////////////////////////////////////////////////////////////////////////////
//
// DEBUG STUFF
//
///////////////////////////////////////////////////////////////////////////////
#ifdef DEBUG
#ifndef WIN32
void FAR cdecl dprintf(LPSTR szFormat, ...)
{
char ach[128];
va_list va;
extern FAR PASCAL OutputDebugStr(LPSTR);
lstrcpy(ach, "MCIOLE: ");
va_start (va, szFormat);
wvsprintf(ach + 8,szFormat,va);
va_end (va);
lstrcat(ach,"\r\n");
OutputDebugString(ach);
}
#else //!WIN32
/*
*
* In theory I need to include STDARGS and STDIO, but I don't get any warnings
* That was because the debug output stuff was never enabled (DBG/DEBUG ...)
*
*/
void FAR cdecl dprintf(LPSTR szFormat, ...)
{
char ach[128];
int s;
va_list va;
if (oleDebugLevel == 0 ) {
return;
}
va_start(va, szFormat);
s = sprintf( ach, "MCIOLE32: (tid %x) ", GetCurrentThreadId() );
s += vsprintf (ach+s,szFormat, va);
va_end(va);
ach[s++] = '\n';
ach[s] = 0;
OutputDebugString(ach);
}
#endif //WIN32
#endif
#ifdef WIN32
/*****************************************************************************\
**
** Stuff to support mouse HookProc
**
\*****************************************************************************/
#ifdef USE_MOUSE_HOOK
LRESULT CALLBACK MouseHook( int hc, WPARAM wParam, LPARAM lParam );
#else
LONG_PTR CALLBACK GetMessageHook( int hc, WPARAM wParam, LPARAM lParam );
#endif
BOOL InstallHook( HWND hwndServer, DWORD wow_thread_id );
BOOL RemoveHook( VOID );
/*
** hHookMouse is the handle to the hook proc. This global is only
** valid in the context of the process that installed the hook (mplay32.exe).
** In all other address spaces this value is null.
**
*/
HHOOK hHookMouse = NULL;
/*****************************************************************************\
** InstallHook
**
** Called from mplay32.exe to install a global HookProc. Returning
** TRUE means everything worked OK. This should only be card from mplay32.
**
\*****************************************************************************/
BOOL InstallHook( HWND hwndServer, DWORD wow_thread_id )
{
DPRINTF(( "Install hook to thread ID = %x", wow_thread_id ));
if ( wow_thread_id ) {
/*
** Get a pointer to file mapped shared memory.
*/
lpvMem = MapViewOfFile( hMapObject, FILE_MAP_WRITE, 0, 0, 0 );
if (lpvMem == NULL) {
return FALSE;
}
lpvMem->hwndServer = hwndServer;
lpvMem->wow_app_thread_id = wow_thread_id;
}
//
// Set the thread id for WOW. In principle this means that
// we don't need to give WOW the thread id since the hook should
// only run on this thread.
//
// For some reason specifying the thread helps give WOW enough
// cycles to actually process the hook proc (if we don't specify it
// we don't ever get in with a mouse click to cancel the play).
//
#ifdef USE_MOUSE_HOOK
hHookMouse = SetWindowsHookEx( WH_MOUSE, MouseHook,
GetModuleHandle( "mciole32" ),
wow_thread_id );
#else
hHookMouse = SetWindowsHookEx( WH_GETMESSAGE, GetMessageHook,
GetModuleHandle( "mciole32" ),
wow_thread_id );
#endif
DPRINTF(( "Mouse hook %s", hHookMouse ? "installed" : "failed" ));
return hHookMouse != NULL;
}
/*****************************************************************************\
** RemoveHook
**
** Called from mplay32.exe to remove a global HookProc. Returning TRUE
** means everything worked OK.
**
\*****************************************************************************/
BOOL RemoveHook( VOID )
{
BOOL fRemove;
fRemove = UnhookWindowsHookEx( hHookMouse );
DPRINTF(( "RemoveMouseHook %s", fRemove ? "removed" : "error" ));
if (lpvMem != NULL) {
DPRINTF(( "Thread ID = %x", lpvMem->wow_app_thread_id ));
lpvMem->hwndServer = (HWND)NULL;
lpvMem->wow_app_thread_id = 0L;
}
return fRemove;
}
#ifdef USE_MOUSE_HOOK
/*****************************************************************************\
** MouseHook
**
** Global mouse hook proc called whenever anything happens to the mouse.
**
\*****************************************************************************/
LRESULT CALLBACK MouseHook( int hc, WPARAM wParam, LPARAM lParam )
{
LPMOUSEHOOKSTRUCT lpmh = (LPVOID)lParam;
UINT message = (UINT)wParam;
if (hc == HC_ACTION) {
/*
** Are we being called in the context of the client thats
** currently playing ?
*/
// DPRINTF(( "Mouse hook called <%x>", message ));
if ( dwProcessIDPlaying == GetCurrentProcessId() ) {
/*
** If the left or right button is down always stop the
** play on place.
*/
if ( message == WM_LBUTTONDOWN || message == WM_RBUTTONDOWN ) {
DPRINTF(( "Stopping play in place" ));
vtblDef.Close( lpobjPlaying );
}
/*
** If the Non-client left or right button is down AND the user
** is not clicking on the title bar (called a caption in Windows)
** stop the play in place.
*/
else if ( message == WM_NCLBUTTONDOWN
|| message == WM_NCRBUTTONDOWN ) {
if ( lpmh->wHitTestCode != HTCAPTION ) {
DPRINTF(( "Stopping play in place" ));
vtblDef.Close( lpobjPlaying );
}
}
}
}
/*
** Chain to the next hook proc. The use of hHookMouse below is not an
** error, this code gets executed in the context many different
** processes. The global hHookMouse is only valid on the process that
** installed the hook (mplay32.exe), otherwise it contains null.
** ScottLu tells me that this is correct behaviour for a global hook
** proc.
*/
return CallNextHookEx( hHookMouse, hc, wParam, lParam );
}
#else
/*****************************************************************************\
** GetMessageHook
**
** Global GetMessageHook hook proc called whenever a message is removed from
** a message queue.
**
\*****************************************************************************/
LONG_PTR CALLBACK GetMessageHook( int hc, WPARAM wParam, LPARAM lParam )
{
LPMSG lpmh = (LPVOID)lParam;
UINT message = lpmh->message;
if (hc == HC_ACTION) {
/*
** Are we being called in the context of the client thats
** currently playing ?
*/
if ( dwProcessIDPlaying == GetCurrentProcessId() ) {
/*
** If the left or right button is down always stop the
** play on place.
*/
if ( message == WM_LBUTTONDOWN || message == WM_RBUTTONDOWN ) {
DPRINTF(( "Stopping play in place" ));
vtblDef.Close( lpobjPlaying );
}
/*
** If the Non-client left or right button is down AND the user
** is not clicking on the title bar (called a caption in Windows)
** stop the play in place.
*/
else if ( message == WM_NCLBUTTONDOWN
|| message == WM_NCRBUTTONDOWN ) {
if ( lpmh->wParam != (WPARAM)HTCAPTION ) {
DPRINTF(( "Stopping play in place" ));
vtblDef.Close( lpobjPlaying );
}
}
}
/*
** If we are running in WOW and the thread Ids match we have to
** stop the play in place by sending a private message to mplay32.exe
*/
else if ( lpvMem != NULL && fRunningInWOW ) {
if ( lpvMem->wow_app_thread_id == GetCurrentThreadId() ) {
/*
** If the left or right button is down always stop the
** play on place.
*/
if ( message == WM_LBUTTONDOWN || message == WM_RBUTTONDOWN ) {
DPRINTF(( "Stopping WOW play in place" ));
SendMessage( lpvMem->hwndServer, WM_USER+500, 0L, 0L );
}
/*
** If the Non-client left or right button is down AND the user
** is not clicking on the title bar (called a caption in Windows)
** stop the play in place.
*/
else if ( message == WM_NCLBUTTONDOWN
|| message == WM_NCRBUTTONDOWN ) {
if ( lpmh->wParam != (WPARAM)HTCAPTION ) {
DPRINTF(( "Stopping WOW play in place" ));
SendMessage( lpvMem->hwndServer, WM_USER+500, 0L, 0L );
}
}
}
}
}
/*
** Chain to the next hook proc. The use of hHookMouse below is not an
** error, this code gets executed in the context many different
** processes. The global hHookMouse is only valid on the process that
** installed the hook (mplay32.exe), otherwise it contains null.
** ScottLu tells me that this is correct behaviour for a global hook
** proc.
*/
return CallNextHookEx( hHookMouse, hc, wParam, lParam );
}
#endif
#endif
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