winepulse v18: Latency and compilation improvements
[wine/multimedia.git] / dlls / ole32 / ole2.c
blob6a91ba68e7663611c854097db2bcae07e8aec5b3
1 /*
2 * OLE2 library
4 * Copyright 1995 Martin von Loewis
5 * Copyright 1999 Francis Beaudet
6 * Copyright 1999 Noel Borthwick
7 * Copyright 1999, 2000 Marcus Meissner
8 * Copyright 2005 Juan Lang
9 * Copyright 2011 Adam Martinson for CodeWeavers
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
26 #include "config.h"
28 #include <assert.h>
29 #include <stdlib.h>
30 #include <stdarg.h>
31 #include <stdio.h>
32 #include <string.h>
34 #define COBJMACROS
35 #define NONAMELESSUNION
36 #define NONAMELESSSTRUCT
38 #include "windef.h"
39 #include "winbase.h"
40 #include "winerror.h"
41 #include "wingdi.h"
42 #include "winuser.h"
43 #include "winnls.h"
44 #include "winreg.h"
45 #include "ole2.h"
46 #include "ole2ver.h"
48 #include "wine/unicode.h"
49 #include "compobj_private.h"
50 #include "wine/list.h"
52 #include "wine/debug.h"
54 WINE_DEFAULT_DEBUG_CHANNEL(ole);
55 WINE_DECLARE_DEBUG_CHANNEL(accel);
57 /******************************************************************************
58 * These are static/global variables and internal data structures that the
59 * OLE module uses to maintain it's state.
61 typedef struct tagTrackerWindowInfo
63 IDataObject* dataObject;
64 IDropSource* dropSource;
65 DWORD dwOKEffect;
66 DWORD* pdwEffect;
67 BOOL trackingDone;
68 HRESULT returnValue;
70 BOOL escPressed;
71 HWND curTargetHWND; /* window the mouse is hovering over */
72 HWND curDragTargetHWND; /* might be a ancestor of curTargetHWND */
73 IDropTarget* curDragTarget;
74 POINTL curMousePos; /* current position of the mouse in screen coordinates */
75 DWORD dwKeyState; /* current state of the shift and ctrl keys and the mouse buttons */
76 } TrackerWindowInfo;
78 typedef struct tagOleMenuDescriptor /* OleMenuDescriptor */
80 HWND hwndFrame; /* The containers frame window */
81 HWND hwndActiveObject; /* The active objects window */
82 OLEMENUGROUPWIDTHS mgw; /* OLE menu group widths for the shared menu */
83 HMENU hmenuCombined; /* The combined menu */
84 BOOL bIsServerItem; /* True if the currently open popup belongs to the server */
85 } OleMenuDescriptor;
87 typedef struct tagOleMenuHookItem /* OleMenu hook item in per thread hook list */
89 DWORD tid; /* Thread Id */
90 HANDLE hHeap; /* Heap this is allocated from */
91 HHOOK GetMsg_hHook; /* message hook for WH_GETMESSAGE */
92 HHOOK CallWndProc_hHook; /* message hook for WH_CALLWNDPROC */
93 struct tagOleMenuHookItem *next;
94 } OleMenuHookItem;
96 static OleMenuHookItem *hook_list;
99 * This is the lock count on the OLE library. It is controlled by the
100 * OLEInitialize/OLEUninitialize methods.
102 static LONG OLE_moduleLockCount = 0;
105 * Name of our registered window class.
107 static const WCHAR OLEDD_DRAGTRACKERCLASS[] =
108 {'W','i','n','e','D','r','a','g','D','r','o','p','T','r','a','c','k','e','r','3','2',0};
111 * Name of menu descriptor property.
113 static const WCHAR prop_olemenuW[] =
114 {'P','R','O','P','_','O','L','E','M','e','n','u','D','e','s','c','r','i','p','t','o','r',0};
116 /* property to store IDropTarget pointer */
117 static const WCHAR prop_oledroptarget[] =
118 {'O','l','e','D','r','o','p','T','a','r','g','e','t','I','n','t','e','r','f','a','c','e',0};
120 /* property to store Marshalled IDropTarget pointer */
121 static const WCHAR prop_marshalleddroptarget[] =
122 {'W','i','n','e','M','a','r','s','h','a','l','l','e','d','D','r','o','p','T','a','r','g','e','t',0};
124 static const WCHAR clsidfmtW[] =
125 {'C','L','S','I','D','\\','{','%','0','8','x','-','%','0','4','x','-','%','0','4','x','-',
126 '%','0','2','x','%','0','2','x','-','%','0','2','x','%','0','2','x','%','0','2','x','%','0','2','x',
127 '%','0','2','x','%','0','2','x','}','\\',0};
129 static const WCHAR emptyW[] = { 0 };
131 /******************************************************************************
132 * These are the prototypes of miscellaneous utility methods
134 static void OLEUTL_ReadRegistryDWORDValue(HKEY regKey, DWORD* pdwValue);
136 /******************************************************************************
137 * These are the prototypes of the utility methods used to manage a shared menu
139 static void OLEMenu_Initialize(void);
140 static void OLEMenu_UnInitialize(void);
141 static BOOL OLEMenu_InstallHooks( DWORD tid );
142 static BOOL OLEMenu_UnInstallHooks( DWORD tid );
143 static OleMenuHookItem * OLEMenu_IsHookInstalled( DWORD tid );
144 static BOOL OLEMenu_FindMainMenuIndex( HMENU hMainMenu, HMENU hPopupMenu, UINT *pnPos );
145 static BOOL OLEMenu_SetIsServerMenu( HMENU hmenu, OleMenuDescriptor *pOleMenuDescriptor );
146 static LRESULT CALLBACK OLEMenu_CallWndProc(INT code, WPARAM wParam, LPARAM lParam);
147 static LRESULT CALLBACK OLEMenu_GetMsgProc(INT code, WPARAM wParam, LPARAM lParam);
149 /******************************************************************************
150 * These are the prototypes of the OLE Clipboard initialization methods (in clipboard.c)
152 extern void OLEClipbrd_UnInitialize(void);
153 extern void OLEClipbrd_Initialize(void);
155 /******************************************************************************
156 * These are the prototypes of the utility methods used for OLE Drag n Drop
158 static void OLEDD_Initialize(void);
159 static LRESULT WINAPI OLEDD_DragTrackerWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
160 static void OLEDD_TrackMouseMove(TrackerWindowInfo* trackerInfo);
161 static void OLEDD_TrackStateChange(TrackerWindowInfo* trackerInfo);
162 static DWORD OLEDD_GetButtonState(void);
164 /******************************************************************************
165 * OleBuildVersion [OLE32.@]
167 DWORD WINAPI OleBuildVersion(void)
169 TRACE("Returning version %d, build %d.\n", rmm, rup);
170 return (rmm<<16)+rup;
173 /***********************************************************************
174 * OleInitialize (OLE32.@)
176 HRESULT WINAPI OleInitialize(LPVOID reserved)
178 HRESULT hr;
180 TRACE("(%p)\n", reserved);
183 * The first duty of the OleInitialize is to initialize the COM libraries.
185 hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
188 * If the CoInitializeEx call failed, the OLE libraries can't be
189 * initialized.
191 if (FAILED(hr))
192 return hr;
194 if (!COM_CurrentInfo()->ole_inits)
195 hr = S_OK;
198 * Then, it has to initialize the OLE specific modules.
199 * This includes:
200 * Clipboard
201 * Drag and Drop
202 * Object linking and Embedding
203 * In-place activation
205 if (!COM_CurrentInfo()->ole_inits++ &&
206 InterlockedIncrement(&OLE_moduleLockCount) == 1)
209 * Initialize the libraries.
211 TRACE("() - Initializing the OLE libraries\n");
214 * OLE Clipboard
216 OLEClipbrd_Initialize();
219 * Drag and Drop
221 OLEDD_Initialize();
224 * OLE shared menu
226 OLEMenu_Initialize();
229 return hr;
232 /******************************************************************************
233 * OleUninitialize [OLE32.@]
235 void WINAPI OleUninitialize(void)
237 TRACE("()\n");
240 * If we hit the bottom of the lock stack, free the libraries.
242 if (!--COM_CurrentInfo()->ole_inits && !InterlockedDecrement(&OLE_moduleLockCount))
245 * Actually free the libraries.
247 TRACE("() - Freeing the last reference count\n");
250 * OLE Clipboard
252 OLEClipbrd_UnInitialize();
255 * OLE shared menu
257 OLEMenu_UnInitialize();
261 * Then, uninitialize the COM libraries.
263 CoUninitialize();
266 /******************************************************************************
267 * OleInitializeWOW [OLE32.@]
269 HRESULT WINAPI OleInitializeWOW(DWORD x, DWORD y) {
270 FIXME("(0x%08x, 0x%08x),stub!\n",x, y);
271 return 0;
274 /*************************************************************
275 * get_droptarget_handle
277 * Retrieve a handle to the map containing the marshalled IDropTarget.
278 * This handle belongs to the process that called RegisterDragDrop.
279 * See get_droptarget_local_handle().
281 static inline HANDLE get_droptarget_handle(HWND hwnd)
283 return GetPropW(hwnd, prop_marshalleddroptarget);
286 /*************************************************************
287 * is_droptarget
289 * Is the window a droptarget.
291 static inline BOOL is_droptarget(HWND hwnd)
293 return get_droptarget_handle(hwnd) != 0;
296 /*************************************************************
297 * get_droptarget_local_handle
299 * Retrieve a handle to the map containing the marshalled IDropTarget.
300 * The handle should be closed when finished with.
302 static HANDLE get_droptarget_local_handle(HWND hwnd)
304 HANDLE handle, local_handle = 0;
306 handle = get_droptarget_handle(hwnd);
308 if(handle)
310 DWORD pid;
311 HANDLE process;
313 GetWindowThreadProcessId(hwnd, &pid);
314 process = OpenProcess(PROCESS_DUP_HANDLE, FALSE, pid);
315 if(process)
317 DuplicateHandle(process, handle, GetCurrentProcess(), &local_handle, 0, FALSE, DUPLICATE_SAME_ACCESS);
318 CloseHandle(process);
321 return local_handle;
324 /***********************************************************************
325 * create_map_from_stream
327 * Helper for RegisterDragDrop. Creates a file mapping object
328 * with the contents of the provided stream. The stream must
329 * be a global memory backed stream.
331 static HRESULT create_map_from_stream(IStream *stream, HANDLE *map)
333 HGLOBAL hmem;
334 DWORD size;
335 HRESULT hr;
336 void *data;
338 hr = GetHGlobalFromStream(stream, &hmem);
339 if(FAILED(hr)) return hr;
341 size = GlobalSize(hmem);
342 *map = CreateFileMappingW(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, size, NULL);
343 if(!*map) return E_OUTOFMEMORY;
345 data = MapViewOfFile(*map, FILE_MAP_WRITE, 0, 0, size);
346 memcpy(data, GlobalLock(hmem), size);
347 GlobalUnlock(hmem);
348 UnmapViewOfFile(data);
349 return S_OK;
352 /***********************************************************************
353 * create_stream_from_map
355 * Creates a stream from the provided map.
357 static HRESULT create_stream_from_map(HANDLE map, IStream **stream)
359 HRESULT hr = E_OUTOFMEMORY;
360 HGLOBAL hmem;
361 void *data;
362 MEMORY_BASIC_INFORMATION info;
364 data = MapViewOfFile(map, FILE_MAP_READ, 0, 0, 0);
365 if(!data) return hr;
367 VirtualQuery(data, &info, sizeof(info));
368 TRACE("size %d\n", (int)info.RegionSize);
370 hmem = GlobalAlloc(GMEM_MOVEABLE, info.RegionSize);
371 if(hmem)
373 memcpy(GlobalLock(hmem), data, info.RegionSize);
374 GlobalUnlock(hmem);
375 hr = CreateStreamOnHGlobal(hmem, TRUE, stream);
377 UnmapViewOfFile(data);
378 return hr;
381 /* This is to work around apps which break COM rules by not implementing
382 * IDropTarget::QueryInterface(). Windows doesn't expose this because it
383 * doesn't call CoMarshallInterface() in RegisterDragDrop().
384 * The wrapper is only used internally, and only exists for the life of
385 * the marshal. We don't want to hold a ref on the app provided target
386 * as some apps destroy this prior to CoUninitialize without calling
387 * RevokeDragDrop. The only (long-term) ref is held by the window prop. */
388 typedef struct {
389 IDropTarget IDropTarget_iface;
390 HWND hwnd;
391 LONG refs;
392 } DropTargetWrapper;
394 static inline DropTargetWrapper* impl_from_IDropTarget(IDropTarget* iface)
396 return CONTAINING_RECORD(iface, DropTargetWrapper, IDropTarget_iface);
399 static HRESULT WINAPI DropTargetWrapper_QueryInterface(IDropTarget* iface,
400 REFIID riid,
401 void** ppvObject)
403 DropTargetWrapper* This = impl_from_IDropTarget(iface);
404 if (IsEqualIID(riid, &IID_IUnknown) ||
405 IsEqualIID(riid, &IID_IDropTarget))
407 IDropTarget_AddRef(&This->IDropTarget_iface);
408 *ppvObject = &This->IDropTarget_iface;
409 return S_OK;
411 *ppvObject = NULL;
412 return E_NOINTERFACE;
415 static ULONG WINAPI DropTargetWrapper_AddRef(IDropTarget* iface)
417 DropTargetWrapper* This = impl_from_IDropTarget(iface);
418 return InterlockedIncrement(&This->refs);
421 static ULONG WINAPI DropTargetWrapper_Release(IDropTarget* iface)
423 DropTargetWrapper* This = impl_from_IDropTarget(iface);
424 ULONG refs = InterlockedDecrement(&This->refs);
425 if (!refs) HeapFree(GetProcessHeap(), 0, This);
426 return refs;
429 static inline HRESULT get_target_from_wrapper( IDropTarget *wrapper, IDropTarget **target )
431 DropTargetWrapper* This = impl_from_IDropTarget( wrapper );
432 *target = GetPropW( This->hwnd, prop_oledroptarget );
433 if (!*target) return DRAGDROP_E_NOTREGISTERED;
434 IDropTarget_AddRef( *target );
435 return S_OK;
438 static HRESULT WINAPI DropTargetWrapper_DragEnter(IDropTarget* iface,
439 IDataObject* pDataObj,
440 DWORD grfKeyState,
441 POINTL pt,
442 DWORD* pdwEffect)
444 IDropTarget *target;
445 HRESULT r = get_target_from_wrapper( iface, &target );
447 if (SUCCEEDED( r ))
449 r = IDropTarget_DragEnter( target, pDataObj, grfKeyState, pt, pdwEffect );
450 IDropTarget_Release( target );
452 return r;
455 static HRESULT WINAPI DropTargetWrapper_DragOver(IDropTarget* iface,
456 DWORD grfKeyState,
457 POINTL pt,
458 DWORD* pdwEffect)
460 IDropTarget *target;
461 HRESULT r = get_target_from_wrapper( iface, &target );
463 if (SUCCEEDED( r ))
465 r = IDropTarget_DragOver( target, grfKeyState, pt, pdwEffect );
466 IDropTarget_Release( target );
468 return r;
471 static HRESULT WINAPI DropTargetWrapper_DragLeave(IDropTarget* iface)
473 IDropTarget *target;
474 HRESULT r = get_target_from_wrapper( iface, &target );
476 if (SUCCEEDED( r ))
478 r = IDropTarget_DragLeave( target );
479 IDropTarget_Release( target );
481 return r;
484 static HRESULT WINAPI DropTargetWrapper_Drop(IDropTarget* iface,
485 IDataObject* pDataObj,
486 DWORD grfKeyState,
487 POINTL pt,
488 DWORD* pdwEffect)
490 IDropTarget *target;
491 HRESULT r = get_target_from_wrapper( iface, &target );
493 if (SUCCEEDED( r ))
495 r = IDropTarget_Drop( target, pDataObj, grfKeyState, pt, pdwEffect );
496 IDropTarget_Release( target );
498 return r;
501 static const IDropTargetVtbl DropTargetWrapperVTbl =
503 DropTargetWrapper_QueryInterface,
504 DropTargetWrapper_AddRef,
505 DropTargetWrapper_Release,
506 DropTargetWrapper_DragEnter,
507 DropTargetWrapper_DragOver,
508 DropTargetWrapper_DragLeave,
509 DropTargetWrapper_Drop
512 static IDropTarget* WrapDropTarget( HWND hwnd )
514 DropTargetWrapper* This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
516 if (This)
518 This->IDropTarget_iface.lpVtbl = &DropTargetWrapperVTbl;
519 This->hwnd = hwnd;
520 This->refs = 1;
522 return &This->IDropTarget_iface;
525 /***********************************************************************
526 * get_droptarget_pointer
528 * Retrieves the marshalled IDropTarget from the window.
530 static IDropTarget* get_droptarget_pointer(HWND hwnd)
532 IDropTarget *droptarget = NULL;
533 HANDLE map;
534 IStream *stream;
536 map = get_droptarget_local_handle(hwnd);
537 if(!map) return NULL;
539 if(SUCCEEDED(create_stream_from_map(map, &stream)))
541 CoUnmarshalInterface(stream, &IID_IDropTarget, (void**)&droptarget);
542 IStream_Release(stream);
544 CloseHandle(map);
545 return droptarget;
548 /***********************************************************************
549 * RegisterDragDrop (OLE32.@)
551 HRESULT WINAPI RegisterDragDrop(HWND hwnd, LPDROPTARGET pDropTarget)
553 DWORD pid = 0;
554 HRESULT hr;
555 IStream *stream;
556 HANDLE map;
557 IDropTarget *wrapper;
559 TRACE("(%p,%p)\n", hwnd, pDropTarget);
561 if (!COM_CurrentApt())
563 ERR("COM not initialized\n");
564 return E_OUTOFMEMORY;
567 if (!pDropTarget)
568 return E_INVALIDARG;
570 if (!IsWindow(hwnd))
572 ERR("invalid hwnd %p\n", hwnd);
573 return DRAGDROP_E_INVALIDHWND;
576 /* block register for other processes windows */
577 GetWindowThreadProcessId(hwnd, &pid);
578 if (pid != GetCurrentProcessId())
580 FIXME("register for another process windows is disabled\n");
581 return DRAGDROP_E_INVALIDHWND;
584 /* check if the window is already registered */
585 if (is_droptarget(hwnd))
586 return DRAGDROP_E_ALREADYREGISTERED;
589 * Marshal the drop target pointer into a shared memory map and
590 * store the map's handle in a Wine specific window prop. We also
591 * store the drop target pointer itself in the
592 * "OleDropTargetInterface" prop for compatibility with Windows.
595 hr = CreateStreamOnHGlobal(NULL, TRUE, &stream);
596 if(FAILED(hr)) return hr;
598 /* IDropTarget::QueryInterface() shouldn't be called, some (broken) apps depend on this. */
599 wrapper = WrapDropTarget( hwnd );
600 if(!wrapper)
602 IStream_Release(stream);
603 return E_OUTOFMEMORY;
605 hr = CoMarshalInterface(stream, &IID_IDropTarget, (IUnknown*)wrapper, MSHCTX_LOCAL, NULL, MSHLFLAGS_TABLESTRONG);
606 IDropTarget_Release(wrapper);
608 if(SUCCEEDED(hr))
610 hr = create_map_from_stream(stream, &map);
611 if(SUCCEEDED(hr))
613 IDropTarget_AddRef(pDropTarget);
614 SetPropW(hwnd, prop_oledroptarget, pDropTarget);
615 SetPropW(hwnd, prop_marshalleddroptarget, map);
617 else
619 LARGE_INTEGER zero;
620 zero.QuadPart = 0;
621 IStream_Seek(stream, zero, STREAM_SEEK_SET, NULL);
622 CoReleaseMarshalData(stream);
625 IStream_Release(stream);
627 return hr;
630 /***********************************************************************
631 * RevokeDragDrop (OLE32.@)
633 HRESULT WINAPI RevokeDragDrop(HWND hwnd)
635 HANDLE map;
636 IStream *stream;
637 IDropTarget *drop_target;
638 HRESULT hr;
640 TRACE("(%p)\n", hwnd);
642 if (!IsWindow(hwnd))
644 ERR("invalid hwnd %p\n", hwnd);
645 return DRAGDROP_E_INVALIDHWND;
648 /* no registration data */
649 if (!(map = get_droptarget_handle(hwnd)))
650 return DRAGDROP_E_NOTREGISTERED;
652 drop_target = GetPropW(hwnd, prop_oledroptarget);
653 if(drop_target) IDropTarget_Release(drop_target);
655 RemovePropW(hwnd, prop_oledroptarget);
656 RemovePropW(hwnd, prop_marshalleddroptarget);
658 hr = create_stream_from_map(map, &stream);
659 if(SUCCEEDED(hr))
661 CoReleaseMarshalData(stream);
662 IStream_Release(stream);
664 CloseHandle(map);
666 return hr;
669 /***********************************************************************
670 * OleRegGetUserType (OLE32.@)
672 * This implementation of OleRegGetUserType ignores the dwFormOfType
673 * parameter and always returns the full name of the object. This is
674 * not too bad since this is the case for many objects because of the
675 * way they are registered.
677 HRESULT WINAPI OleRegGetUserType(
678 REFCLSID clsid,
679 DWORD dwFormOfType,
680 LPOLESTR* pszUserType)
682 WCHAR keyName[60];
683 DWORD dwKeyType;
684 DWORD cbData;
685 HKEY clsidKey;
686 LONG hres;
689 * Initialize the out parameter.
691 *pszUserType = NULL;
694 * Build the key name we're looking for
696 sprintfW( keyName, clsidfmtW,
697 clsid->Data1, clsid->Data2, clsid->Data3,
698 clsid->Data4[0], clsid->Data4[1], clsid->Data4[2], clsid->Data4[3],
699 clsid->Data4[4], clsid->Data4[5], clsid->Data4[6], clsid->Data4[7] );
701 TRACE("(%s, %d, %p)\n", debugstr_w(keyName), dwFormOfType, pszUserType);
704 * Open the class id Key
706 hres = RegOpenKeyW(HKEY_CLASSES_ROOT,
707 keyName,
708 &clsidKey);
710 if (hres != ERROR_SUCCESS)
711 return REGDB_E_CLASSNOTREG;
714 * Retrieve the size of the name string.
716 cbData = 0;
718 hres = RegQueryValueExW(clsidKey,
719 emptyW,
720 NULL,
721 &dwKeyType,
722 NULL,
723 &cbData);
725 if (hres!=ERROR_SUCCESS)
727 RegCloseKey(clsidKey);
728 return REGDB_E_READREGDB;
732 * Allocate a buffer for the registry value.
734 *pszUserType = CoTaskMemAlloc(cbData);
736 if (*pszUserType==NULL)
738 RegCloseKey(clsidKey);
739 return E_OUTOFMEMORY;
742 hres = RegQueryValueExW(clsidKey,
743 emptyW,
744 NULL,
745 &dwKeyType,
746 (LPBYTE) *pszUserType,
747 &cbData);
749 RegCloseKey(clsidKey);
751 if (hres != ERROR_SUCCESS)
753 CoTaskMemFree(*pszUserType);
754 *pszUserType = NULL;
756 return REGDB_E_READREGDB;
759 return S_OK;
762 /***********************************************************************
763 * DoDragDrop [OLE32.@]
765 HRESULT WINAPI DoDragDrop (
766 IDataObject *pDataObject, /* [in] ptr to the data obj */
767 IDropSource* pDropSource, /* [in] ptr to the source obj */
768 DWORD dwOKEffect, /* [in] effects allowed by the source */
769 DWORD *pdwEffect) /* [out] ptr to effects of the source */
771 static const WCHAR trackerW[] = {'T','r','a','c','k','e','r','W','i','n','d','o','w',0};
772 TrackerWindowInfo trackerInfo;
773 HWND hwndTrackWindow;
774 MSG msg;
776 TRACE("(%p, %p, %08x, %p)\n", pDataObject, pDropSource, dwOKEffect, pdwEffect);
778 if (!pDataObject || !pDropSource || !pdwEffect)
779 return E_INVALIDARG;
782 * Setup the drag n drop tracking window.
785 trackerInfo.dataObject = pDataObject;
786 trackerInfo.dropSource = pDropSource;
787 trackerInfo.dwOKEffect = dwOKEffect;
788 trackerInfo.pdwEffect = pdwEffect;
789 trackerInfo.trackingDone = FALSE;
790 trackerInfo.escPressed = FALSE;
791 trackerInfo.curDragTargetHWND = 0;
792 trackerInfo.curTargetHWND = 0;
793 trackerInfo.curDragTarget = 0;
795 hwndTrackWindow = CreateWindowW(OLEDD_DRAGTRACKERCLASS, trackerW,
796 WS_POPUP, CW_USEDEFAULT, CW_USEDEFAULT,
797 CW_USEDEFAULT, CW_USEDEFAULT, 0, 0, 0,
798 &trackerInfo);
800 if (hwndTrackWindow)
803 * Capture the mouse input
805 SetCapture(hwndTrackWindow);
807 msg.message = 0;
810 * Pump messages. All mouse input should go to the capture window.
812 while (!trackerInfo.trackingDone && GetMessageW(&msg, 0, 0, 0) )
814 trackerInfo.curMousePos.x = msg.pt.x;
815 trackerInfo.curMousePos.y = msg.pt.y;
816 trackerInfo.dwKeyState = OLEDD_GetButtonState();
818 if ( (msg.message >= WM_KEYFIRST) &&
819 (msg.message <= WM_KEYLAST) )
822 * When keyboard messages are sent to windows on this thread, we
823 * want to ignore notify the drop source that the state changed.
824 * in the case of the Escape key, we also notify the drop source
825 * we give it a special meaning.
827 if ( (msg.message==WM_KEYDOWN) &&
828 (msg.wParam==VK_ESCAPE) )
830 trackerInfo.escPressed = TRUE;
834 * Notify the drop source.
836 OLEDD_TrackStateChange(&trackerInfo);
838 else
841 * Dispatch the messages only when it's not a keyboard message.
843 DispatchMessageW(&msg);
847 /* re-post the quit message to outer message loop */
848 if (msg.message == WM_QUIT)
849 PostQuitMessage(msg.wParam);
851 * Destroy the temporary window.
853 DestroyWindow(hwndTrackWindow);
855 return trackerInfo.returnValue;
858 return E_FAIL;
861 /***********************************************************************
862 * OleQueryLinkFromData [OLE32.@]
864 HRESULT WINAPI OleQueryLinkFromData(
865 IDataObject* pSrcDataObject)
867 FIXME("(%p),stub!\n", pSrcDataObject);
868 return S_FALSE;
871 /***********************************************************************
872 * OleRegGetMiscStatus [OLE32.@]
874 HRESULT WINAPI OleRegGetMiscStatus(
875 REFCLSID clsid,
876 DWORD dwAspect,
877 DWORD* pdwStatus)
879 static const WCHAR miscstatusW[] = {'M','i','s','c','S','t','a','t','u','s',0};
880 static const WCHAR dfmtW[] = {'%','d',0};
881 WCHAR keyName[60];
882 HKEY clsidKey;
883 HKEY miscStatusKey;
884 HKEY aspectKey;
885 LONG result;
888 * Initialize the out parameter.
890 *pdwStatus = 0;
893 * Build the key name we're looking for
895 sprintfW( keyName, clsidfmtW,
896 clsid->Data1, clsid->Data2, clsid->Data3,
897 clsid->Data4[0], clsid->Data4[1], clsid->Data4[2], clsid->Data4[3],
898 clsid->Data4[4], clsid->Data4[5], clsid->Data4[6], clsid->Data4[7] );
900 TRACE("(%s, %d, %p)\n", debugstr_w(keyName), dwAspect, pdwStatus);
903 * Open the class id Key
905 result = RegOpenKeyW(HKEY_CLASSES_ROOT,
906 keyName,
907 &clsidKey);
909 if (result != ERROR_SUCCESS)
910 return REGDB_E_CLASSNOTREG;
913 * Get the MiscStatus
915 result = RegOpenKeyW(clsidKey,
916 miscstatusW,
917 &miscStatusKey);
920 if (result != ERROR_SUCCESS)
922 RegCloseKey(clsidKey);
923 return REGDB_E_READREGDB;
927 * Read the default value
929 OLEUTL_ReadRegistryDWORDValue(miscStatusKey, pdwStatus);
932 * Open the key specific to the requested aspect.
934 sprintfW(keyName, dfmtW, dwAspect);
936 result = RegOpenKeyW(miscStatusKey,
937 keyName,
938 &aspectKey);
940 if (result == ERROR_SUCCESS)
942 OLEUTL_ReadRegistryDWORDValue(aspectKey, pdwStatus);
943 RegCloseKey(aspectKey);
947 * Cleanup
949 RegCloseKey(miscStatusKey);
950 RegCloseKey(clsidKey);
952 return S_OK;
955 static HRESULT EnumOLEVERB_Construct(HKEY hkeyVerb, ULONG index, IEnumOLEVERB **ppenum);
957 typedef struct
959 IEnumOLEVERB IEnumOLEVERB_iface;
960 LONG ref;
962 HKEY hkeyVerb;
963 ULONG index;
964 } EnumOLEVERB;
966 static inline EnumOLEVERB *impl_from_IEnumOLEVERB(IEnumOLEVERB *iface)
968 return CONTAINING_RECORD(iface, EnumOLEVERB, IEnumOLEVERB_iface);
971 static HRESULT WINAPI EnumOLEVERB_QueryInterface(
972 IEnumOLEVERB *iface, REFIID riid, void **ppv)
974 TRACE("(%s, %p)\n", debugstr_guid(riid), ppv);
975 if (IsEqualIID(riid, &IID_IUnknown) ||
976 IsEqualIID(riid, &IID_IEnumOLEVERB))
978 IEnumOLEVERB_AddRef(iface);
979 *ppv = iface;
980 return S_OK;
982 return E_NOINTERFACE;
985 static ULONG WINAPI EnumOLEVERB_AddRef(
986 IEnumOLEVERB *iface)
988 EnumOLEVERB *This = impl_from_IEnumOLEVERB(iface);
989 TRACE("()\n");
990 return InterlockedIncrement(&This->ref);
993 static ULONG WINAPI EnumOLEVERB_Release(
994 IEnumOLEVERB *iface)
996 EnumOLEVERB *This = impl_from_IEnumOLEVERB(iface);
997 LONG refs = InterlockedDecrement(&This->ref);
998 TRACE("()\n");
999 if (!refs)
1001 RegCloseKey(This->hkeyVerb);
1002 HeapFree(GetProcessHeap(), 0, This);
1004 return refs;
1007 static HRESULT WINAPI EnumOLEVERB_Next(
1008 IEnumOLEVERB *iface, ULONG celt, LPOLEVERB rgelt,
1009 ULONG *pceltFetched)
1011 EnumOLEVERB *This = impl_from_IEnumOLEVERB(iface);
1012 HRESULT hr = S_OK;
1014 TRACE("(%d, %p, %p)\n", celt, rgelt, pceltFetched);
1016 if (pceltFetched)
1017 *pceltFetched = 0;
1019 for (; celt; celt--, rgelt++)
1021 WCHAR wszSubKey[20];
1022 LONG cbData;
1023 LPWSTR pwszOLEVERB;
1024 LPWSTR pwszMenuFlags;
1025 LPWSTR pwszAttribs;
1026 LONG res = RegEnumKeyW(This->hkeyVerb, This->index, wszSubKey, sizeof(wszSubKey)/sizeof(wszSubKey[0]));
1027 if (res == ERROR_NO_MORE_ITEMS)
1029 hr = S_FALSE;
1030 break;
1032 else if (res != ERROR_SUCCESS)
1034 ERR("RegEnumKeyW failed with error %d\n", res);
1035 hr = REGDB_E_READREGDB;
1036 break;
1038 res = RegQueryValueW(This->hkeyVerb, wszSubKey, NULL, &cbData);
1039 if (res != ERROR_SUCCESS)
1041 ERR("RegQueryValueW failed with error %d\n", res);
1042 hr = REGDB_E_READREGDB;
1043 break;
1045 pwszOLEVERB = CoTaskMemAlloc(cbData);
1046 if (!pwszOLEVERB)
1048 hr = E_OUTOFMEMORY;
1049 break;
1051 res = RegQueryValueW(This->hkeyVerb, wszSubKey, pwszOLEVERB, &cbData);
1052 if (res != ERROR_SUCCESS)
1054 ERR("RegQueryValueW failed with error %d\n", res);
1055 hr = REGDB_E_READREGDB;
1056 CoTaskMemFree(pwszOLEVERB);
1057 break;
1060 TRACE("verb string: %s\n", debugstr_w(pwszOLEVERB));
1061 pwszMenuFlags = strchrW(pwszOLEVERB, ',');
1062 if (!pwszMenuFlags)
1064 hr = OLEOBJ_E_INVALIDVERB;
1065 CoTaskMemFree(pwszOLEVERB);
1066 break;
1068 /* nul terminate the name string and advance to first character */
1069 *pwszMenuFlags = '\0';
1070 pwszMenuFlags++;
1071 pwszAttribs = strchrW(pwszMenuFlags, ',');
1072 if (!pwszAttribs)
1074 hr = OLEOBJ_E_INVALIDVERB;
1075 CoTaskMemFree(pwszOLEVERB);
1076 break;
1078 /* nul terminate the menu string and advance to first character */
1079 *pwszAttribs = '\0';
1080 pwszAttribs++;
1082 /* fill out structure for this verb */
1083 rgelt->lVerb = atolW(wszSubKey);
1084 rgelt->lpszVerbName = pwszOLEVERB; /* user should free */
1085 rgelt->fuFlags = atolW(pwszMenuFlags);
1086 rgelt->grfAttribs = atolW(pwszAttribs);
1088 if (pceltFetched)
1089 (*pceltFetched)++;
1090 This->index++;
1092 return hr;
1095 static HRESULT WINAPI EnumOLEVERB_Skip(
1096 IEnumOLEVERB *iface, ULONG celt)
1098 EnumOLEVERB *This = impl_from_IEnumOLEVERB(iface);
1100 TRACE("(%d)\n", celt);
1102 This->index += celt;
1103 return S_OK;
1106 static HRESULT WINAPI EnumOLEVERB_Reset(
1107 IEnumOLEVERB *iface)
1109 EnumOLEVERB *This = impl_from_IEnumOLEVERB(iface);
1111 TRACE("()\n");
1113 This->index = 0;
1114 return S_OK;
1117 static HRESULT WINAPI EnumOLEVERB_Clone(
1118 IEnumOLEVERB *iface,
1119 IEnumOLEVERB **ppenum)
1121 EnumOLEVERB *This = impl_from_IEnumOLEVERB(iface);
1122 HKEY hkeyVerb;
1123 TRACE("(%p)\n", ppenum);
1124 if (!DuplicateHandle(GetCurrentProcess(), This->hkeyVerb, GetCurrentProcess(), (HANDLE *)&hkeyVerb, 0, FALSE, DUPLICATE_SAME_ACCESS))
1125 return HRESULT_FROM_WIN32(GetLastError());
1126 return EnumOLEVERB_Construct(hkeyVerb, This->index, ppenum);
1129 static const IEnumOLEVERBVtbl EnumOLEVERB_VTable =
1131 EnumOLEVERB_QueryInterface,
1132 EnumOLEVERB_AddRef,
1133 EnumOLEVERB_Release,
1134 EnumOLEVERB_Next,
1135 EnumOLEVERB_Skip,
1136 EnumOLEVERB_Reset,
1137 EnumOLEVERB_Clone
1140 static HRESULT EnumOLEVERB_Construct(HKEY hkeyVerb, ULONG index, IEnumOLEVERB **ppenum)
1142 EnumOLEVERB *This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
1143 if (!This)
1145 RegCloseKey(hkeyVerb);
1146 return E_OUTOFMEMORY;
1148 This->IEnumOLEVERB_iface.lpVtbl = &EnumOLEVERB_VTable;
1149 This->ref = 1;
1150 This->index = index;
1151 This->hkeyVerb = hkeyVerb;
1152 *ppenum = &This->IEnumOLEVERB_iface;
1153 return S_OK;
1156 /***********************************************************************
1157 * OleRegEnumVerbs [OLE32.@]
1159 * Enumerates verbs associated with a class stored in the registry.
1161 * PARAMS
1162 * clsid [I] Class ID to enumerate the verbs for.
1163 * ppenum [O] Enumerator.
1165 * RETURNS
1166 * S_OK: Success.
1167 * REGDB_E_CLASSNOTREG: The specified class does not have a key in the registry.
1168 * REGDB_E_READREGDB: The class key could not be opened for some other reason.
1169 * OLE_E_REGDB_KEY: The Verb subkey for the class is not present.
1170 * OLEOBJ_E_NOVERBS: The Verb subkey for the class is empty.
1172 HRESULT WINAPI OleRegEnumVerbs (REFCLSID clsid, LPENUMOLEVERB* ppenum)
1174 LONG res;
1175 HKEY hkeyVerb;
1176 DWORD dwSubKeys;
1177 static const WCHAR wszVerb[] = {'V','e','r','b',0};
1179 TRACE("(%s, %p)\n", debugstr_guid(clsid), ppenum);
1181 res = COM_OpenKeyForCLSID(clsid, wszVerb, KEY_READ, &hkeyVerb);
1182 if (FAILED(res))
1184 if (res == REGDB_E_CLASSNOTREG)
1185 ERR("CLSID %s not registered\n", debugstr_guid(clsid));
1186 else if (res == REGDB_E_KEYMISSING)
1187 ERR("no Verbs key for class %s\n", debugstr_guid(clsid));
1188 else
1189 ERR("failed to open Verbs key for CLSID %s with error %d\n",
1190 debugstr_guid(clsid), res);
1191 return res;
1194 res = RegQueryInfoKeyW(hkeyVerb, NULL, NULL, NULL, &dwSubKeys, NULL,
1195 NULL, NULL, NULL, NULL, NULL, NULL);
1196 if (res != ERROR_SUCCESS)
1198 ERR("failed to get subkey count with error %d\n", GetLastError());
1199 return REGDB_E_READREGDB;
1202 if (!dwSubKeys)
1204 WARN("class %s has no verbs\n", debugstr_guid(clsid));
1205 RegCloseKey(hkeyVerb);
1206 return OLEOBJ_E_NOVERBS;
1209 return EnumOLEVERB_Construct(hkeyVerb, 0, ppenum);
1212 /******************************************************************************
1213 * OleSetContainedObject [OLE32.@]
1215 HRESULT WINAPI OleSetContainedObject(
1216 LPUNKNOWN pUnknown,
1217 BOOL fContained)
1219 IRunnableObject* runnable = NULL;
1220 HRESULT hres;
1222 TRACE("(%p,%x)\n", pUnknown, fContained);
1224 hres = IUnknown_QueryInterface(pUnknown,
1225 &IID_IRunnableObject,
1226 (void**)&runnable);
1228 if (SUCCEEDED(hres))
1230 hres = IRunnableObject_SetContainedObject(runnable, fContained);
1232 IRunnableObject_Release(runnable);
1234 return hres;
1237 return S_OK;
1240 /******************************************************************************
1241 * OleRun [OLE32.@]
1243 * Set the OLE object to the running state.
1245 * PARAMS
1246 * pUnknown [I] OLE object to run.
1248 * RETURNS
1249 * Success: S_OK.
1250 * Failure: Any HRESULT code.
1252 HRESULT WINAPI OleRun(LPUNKNOWN pUnknown)
1254 IRunnableObject *runable;
1255 HRESULT hres;
1257 TRACE("(%p)\n", pUnknown);
1259 hres = IUnknown_QueryInterface(pUnknown, &IID_IRunnableObject, (void**)&runable);
1260 if (FAILED(hres))
1261 return S_OK; /* Appears to return no error. */
1263 hres = IRunnableObject_Run(runable, NULL);
1264 IRunnableObject_Release(runable);
1265 return hres;
1268 /******************************************************************************
1269 * OleLoad [OLE32.@]
1271 HRESULT WINAPI OleLoad(
1272 LPSTORAGE pStg,
1273 REFIID riid,
1274 LPOLECLIENTSITE pClientSite,
1275 LPVOID* ppvObj)
1277 IPersistStorage* persistStorage = NULL;
1278 IUnknown* pUnk;
1279 IOleObject* pOleObject = NULL;
1280 STATSTG storageInfo;
1281 HRESULT hres;
1283 TRACE("(%p, %s, %p, %p)\n", pStg, debugstr_guid(riid), pClientSite, ppvObj);
1285 *ppvObj = NULL;
1288 * TODO, Conversion ... OleDoAutoConvert
1292 * Get the class ID for the object.
1294 hres = IStorage_Stat(pStg, &storageInfo, STATFLAG_NONAME);
1297 * Now, try and create the handler for the object
1299 hres = CoCreateInstance(&storageInfo.clsid,
1300 NULL,
1301 CLSCTX_INPROC_HANDLER|CLSCTX_INPROC_SERVER,
1302 riid,
1303 (void**)&pUnk);
1306 * If that fails, as it will most times, load the default
1307 * OLE handler.
1309 if (FAILED(hres))
1311 hres = OleCreateDefaultHandler(&storageInfo.clsid,
1312 NULL,
1313 riid,
1314 (void**)&pUnk);
1318 * If we couldn't find a handler... this is bad. Abort the whole thing.
1320 if (FAILED(hres))
1321 return hres;
1323 if (pClientSite)
1325 hres = IUnknown_QueryInterface(pUnk, &IID_IOleObject, (void **)&pOleObject);
1326 if (SUCCEEDED(hres))
1328 DWORD dwStatus;
1329 hres = IOleObject_GetMiscStatus(pOleObject, DVASPECT_CONTENT, &dwStatus);
1334 * Initialize the object with its IPersistStorage interface.
1336 hres = IUnknown_QueryInterface(pUnk, &IID_IPersistStorage, (void**)&persistStorage);
1337 if (SUCCEEDED(hres))
1339 hres = IPersistStorage_Load(persistStorage, pStg);
1341 IPersistStorage_Release(persistStorage);
1342 persistStorage = NULL;
1345 if (SUCCEEDED(hres) && pClientSite)
1347 * Inform the new object of it's client site.
1349 hres = IOleObject_SetClientSite(pOleObject, pClientSite);
1352 * Cleanup interfaces used internally
1354 if (pOleObject)
1355 IOleObject_Release(pOleObject);
1357 if (SUCCEEDED(hres))
1359 IOleLink *pOleLink;
1360 HRESULT hres1;
1361 hres1 = IUnknown_QueryInterface(pUnk, &IID_IOleLink, (void **)&pOleLink);
1362 if (SUCCEEDED(hres1))
1364 FIXME("handle OLE link\n");
1365 IOleLink_Release(pOleLink);
1369 if (FAILED(hres))
1371 IUnknown_Release(pUnk);
1372 pUnk = NULL;
1375 *ppvObj = pUnk;
1377 return hres;
1380 /***********************************************************************
1381 * OleSave [OLE32.@]
1383 HRESULT WINAPI OleSave(
1384 LPPERSISTSTORAGE pPS,
1385 LPSTORAGE pStg,
1386 BOOL fSameAsLoad)
1388 HRESULT hres;
1389 CLSID objectClass;
1391 TRACE("(%p,%p,%x)\n", pPS, pStg, fSameAsLoad);
1394 * First, we transfer the class ID (if available)
1396 hres = IPersistStorage_GetClassID(pPS, &objectClass);
1398 if (SUCCEEDED(hres))
1400 WriteClassStg(pStg, &objectClass);
1404 * Then, we ask the object to save itself to the
1405 * storage. If it is successful, we commit the storage.
1407 hres = IPersistStorage_Save(pPS, pStg, fSameAsLoad);
1409 if (SUCCEEDED(hres))
1411 IStorage_Commit(pStg,
1412 STGC_DEFAULT);
1415 return hres;
1419 /******************************************************************************
1420 * OleLockRunning [OLE32.@]
1422 HRESULT WINAPI OleLockRunning(LPUNKNOWN pUnknown, BOOL fLock, BOOL fLastUnlockCloses)
1424 IRunnableObject* runnable = NULL;
1425 HRESULT hres;
1427 TRACE("(%p,%x,%x)\n", pUnknown, fLock, fLastUnlockCloses);
1429 hres = IUnknown_QueryInterface(pUnknown,
1430 &IID_IRunnableObject,
1431 (void**)&runnable);
1433 if (SUCCEEDED(hres))
1435 hres = IRunnableObject_LockRunning(runnable, fLock, fLastUnlockCloses);
1437 IRunnableObject_Release(runnable);
1439 return hres;
1442 return S_OK;
1446 /**************************************************************************
1447 * Internal methods to manage the shared OLE menu in response to the
1448 * OLE***MenuDescriptor API
1451 /***
1452 * OLEMenu_Initialize()
1454 * Initializes the OLEMENU data structures.
1456 static void OLEMenu_Initialize(void)
1460 /***
1461 * OLEMenu_UnInitialize()
1463 * Releases the OLEMENU data structures.
1465 static void OLEMenu_UnInitialize(void)
1469 /*************************************************************************
1470 * OLEMenu_InstallHooks
1471 * Install thread scope message hooks for WH_GETMESSAGE and WH_CALLWNDPROC
1473 * RETURNS: TRUE if message hooks were successfully installed
1474 * FALSE on failure
1476 static BOOL OLEMenu_InstallHooks( DWORD tid )
1478 OleMenuHookItem *pHookItem;
1480 /* Create an entry for the hook table */
1481 if ( !(pHookItem = HeapAlloc(GetProcessHeap(), 0,
1482 sizeof(OleMenuHookItem)) ) )
1483 return FALSE;
1485 pHookItem->tid = tid;
1486 pHookItem->hHeap = GetProcessHeap();
1487 pHookItem->CallWndProc_hHook = NULL;
1489 /* Install a thread scope message hook for WH_GETMESSAGE */
1490 pHookItem->GetMsg_hHook = SetWindowsHookExW( WH_GETMESSAGE, OLEMenu_GetMsgProc,
1491 0, GetCurrentThreadId() );
1492 if ( !pHookItem->GetMsg_hHook )
1493 goto CLEANUP;
1495 /* Install a thread scope message hook for WH_CALLWNDPROC */
1496 pHookItem->CallWndProc_hHook = SetWindowsHookExW( WH_CALLWNDPROC, OLEMenu_CallWndProc,
1497 0, GetCurrentThreadId() );
1498 if ( !pHookItem->CallWndProc_hHook )
1499 goto CLEANUP;
1501 /* Insert the hook table entry */
1502 pHookItem->next = hook_list;
1503 hook_list = pHookItem;
1505 return TRUE;
1507 CLEANUP:
1508 /* Unhook any hooks */
1509 if ( pHookItem->GetMsg_hHook )
1510 UnhookWindowsHookEx( pHookItem->GetMsg_hHook );
1511 if ( pHookItem->CallWndProc_hHook )
1512 UnhookWindowsHookEx( pHookItem->CallWndProc_hHook );
1513 /* Release the hook table entry */
1514 HeapFree(pHookItem->hHeap, 0, pHookItem );
1516 return FALSE;
1519 /*************************************************************************
1520 * OLEMenu_UnInstallHooks
1521 * UnInstall thread scope message hooks for WH_GETMESSAGE and WH_CALLWNDPROC
1523 * RETURNS: TRUE if message hooks were successfully installed
1524 * FALSE on failure
1526 static BOOL OLEMenu_UnInstallHooks( DWORD tid )
1528 OleMenuHookItem *pHookItem = NULL;
1529 OleMenuHookItem **ppHook = &hook_list;
1531 while (*ppHook)
1533 if ((*ppHook)->tid == tid)
1535 pHookItem = *ppHook;
1536 *ppHook = pHookItem->next;
1537 break;
1539 ppHook = &(*ppHook)->next;
1541 if (!pHookItem) return FALSE;
1543 /* Uninstall the hooks installed for this thread */
1544 if ( !UnhookWindowsHookEx( pHookItem->GetMsg_hHook ) )
1545 goto CLEANUP;
1546 if ( !UnhookWindowsHookEx( pHookItem->CallWndProc_hHook ) )
1547 goto CLEANUP;
1549 /* Release the hook table entry */
1550 HeapFree(pHookItem->hHeap, 0, pHookItem );
1552 return TRUE;
1554 CLEANUP:
1555 /* Release the hook table entry */
1556 HeapFree(pHookItem->hHeap, 0, pHookItem );
1558 return FALSE;
1561 /*************************************************************************
1562 * OLEMenu_IsHookInstalled
1563 * Tests if OLEMenu hooks have been installed for a thread
1565 * RETURNS: The pointer and index of the hook table entry for the tid
1566 * NULL and -1 for the index if no hooks were installed for this thread
1568 static OleMenuHookItem * OLEMenu_IsHookInstalled( DWORD tid )
1570 OleMenuHookItem *pHookItem;
1572 /* Do a simple linear search for an entry whose tid matches ours.
1573 * We really need a map but efficiency is not a concern here. */
1574 for (pHookItem = hook_list; pHookItem; pHookItem = pHookItem->next)
1576 if ( tid == pHookItem->tid )
1577 return pHookItem;
1580 return NULL;
1583 /***********************************************************************
1584 * OLEMenu_FindMainMenuIndex
1586 * Used by OLEMenu API to find the top level group a menu item belongs to.
1587 * On success pnPos contains the index of the item in the top level menu group
1589 * RETURNS: TRUE if the ID was found, FALSE on failure
1591 static BOOL OLEMenu_FindMainMenuIndex( HMENU hMainMenu, HMENU hPopupMenu, UINT *pnPos )
1593 INT i, nItems;
1595 nItems = GetMenuItemCount( hMainMenu );
1597 for (i = 0; i < nItems; i++)
1599 HMENU hsubmenu;
1601 /* Is the current item a submenu? */
1602 if ( (hsubmenu = GetSubMenu(hMainMenu, i)) )
1604 /* If the handle is the same we're done */
1605 if ( hsubmenu == hPopupMenu )
1607 if (pnPos)
1608 *pnPos = i;
1609 return TRUE;
1611 /* Recursively search without updating pnPos */
1612 else if ( OLEMenu_FindMainMenuIndex( hsubmenu, hPopupMenu, NULL ) )
1614 if (pnPos)
1615 *pnPos = i;
1616 return TRUE;
1621 return FALSE;
1624 /***********************************************************************
1625 * OLEMenu_SetIsServerMenu
1627 * Checks whether a popup menu belongs to a shared menu group which is
1628 * owned by the server, and sets the menu descriptor state accordingly.
1629 * All menu messages from these groups should be routed to the server.
1631 * RETURNS: TRUE if the popup menu is part of a server owned group
1632 * FALSE if the popup menu is part of a container owned group
1634 static BOOL OLEMenu_SetIsServerMenu( HMENU hmenu, OleMenuDescriptor *pOleMenuDescriptor )
1636 UINT nPos = 0, nWidth, i;
1638 pOleMenuDescriptor->bIsServerItem = FALSE;
1640 /* Don't bother searching if the popup is the combined menu itself */
1641 if ( hmenu == pOleMenuDescriptor->hmenuCombined )
1642 return FALSE;
1644 /* Find the menu item index in the shared OLE menu that this item belongs to */
1645 if ( !OLEMenu_FindMainMenuIndex( pOleMenuDescriptor->hmenuCombined, hmenu, &nPos ) )
1646 return FALSE;
1648 /* The group widths array has counts for the number of elements
1649 * in the groups File, Edit, Container, Object, Window, Help.
1650 * The Edit, Object & Help groups belong to the server object
1651 * and the other three belong to the container.
1652 * Loop through the group widths and locate the group we are a member of.
1654 for ( i = 0, nWidth = 0; i < 6; i++ )
1656 nWidth += pOleMenuDescriptor->mgw.width[i];
1657 if ( nPos < nWidth )
1659 /* Odd elements are server menu widths */
1660 pOleMenuDescriptor->bIsServerItem = i%2;
1661 break;
1665 return pOleMenuDescriptor->bIsServerItem;
1668 /*************************************************************************
1669 * OLEMenu_CallWndProc
1670 * Thread scope WH_CALLWNDPROC hook proc filter function (callback)
1671 * This is invoked from a message hook installed in OleSetMenuDescriptor.
1673 static LRESULT CALLBACK OLEMenu_CallWndProc(INT code, WPARAM wParam, LPARAM lParam)
1675 LPCWPSTRUCT pMsg;
1676 HOLEMENU hOleMenu = 0;
1677 OleMenuDescriptor *pOleMenuDescriptor = NULL;
1678 OleMenuHookItem *pHookItem = NULL;
1679 WORD fuFlags;
1681 TRACE("%i, %04lx, %08lx\n", code, wParam, lParam );
1683 /* Check if we're being asked to process the message */
1684 if ( HC_ACTION != code )
1685 goto NEXTHOOK;
1687 /* Retrieve the current message being dispatched from lParam */
1688 pMsg = (LPCWPSTRUCT)lParam;
1690 /* Check if the message is destined for a window we are interested in:
1691 * If the window has an OLEMenu property we may need to dispatch
1692 * the menu message to its active objects window instead. */
1694 hOleMenu = GetPropW( pMsg->hwnd, prop_olemenuW );
1695 if ( !hOleMenu )
1696 goto NEXTHOOK;
1698 /* Get the menu descriptor */
1699 pOleMenuDescriptor = GlobalLock( hOleMenu );
1700 if ( !pOleMenuDescriptor ) /* Bad descriptor! */
1701 goto NEXTHOOK;
1703 /* Process menu messages */
1704 switch( pMsg->message )
1706 case WM_INITMENU:
1708 /* Reset the menu descriptor state */
1709 pOleMenuDescriptor->bIsServerItem = FALSE;
1711 /* Send this message to the server as well */
1712 SendMessageW( pOleMenuDescriptor->hwndActiveObject,
1713 pMsg->message, pMsg->wParam, pMsg->lParam );
1714 goto NEXTHOOK;
1717 case WM_INITMENUPOPUP:
1719 /* Save the state for whether this is a server owned menu */
1720 OLEMenu_SetIsServerMenu( (HMENU)pMsg->wParam, pOleMenuDescriptor );
1721 break;
1724 case WM_MENUSELECT:
1726 fuFlags = HIWORD(pMsg->wParam); /* Get flags */
1727 if ( fuFlags & MF_SYSMENU )
1728 goto NEXTHOOK;
1730 /* Save the state for whether this is a server owned popup menu */
1731 else if ( fuFlags & MF_POPUP )
1732 OLEMenu_SetIsServerMenu( (HMENU)pMsg->lParam, pOleMenuDescriptor );
1734 break;
1737 case WM_DRAWITEM:
1739 LPDRAWITEMSTRUCT lpdis = (LPDRAWITEMSTRUCT) pMsg->lParam;
1740 if ( pMsg->wParam != 0 || lpdis->CtlType != ODT_MENU )
1741 goto NEXTHOOK; /* Not a menu message */
1743 break;
1746 default:
1747 goto NEXTHOOK;
1750 /* If the message was for the server dispatch it accordingly */
1751 if ( pOleMenuDescriptor->bIsServerItem )
1753 SendMessageW( pOleMenuDescriptor->hwndActiveObject,
1754 pMsg->message, pMsg->wParam, pMsg->lParam );
1757 NEXTHOOK:
1758 if ( pOleMenuDescriptor )
1759 GlobalUnlock( hOleMenu );
1761 /* Lookup the hook item for the current thread */
1762 if ( !( pHookItem = OLEMenu_IsHookInstalled( GetCurrentThreadId() ) ) )
1764 /* This should never fail!! */
1765 WARN("could not retrieve hHook for current thread!\n" );
1766 return 0;
1769 /* Pass on the message to the next hooker */
1770 return CallNextHookEx( pHookItem->CallWndProc_hHook, code, wParam, lParam );
1773 /*************************************************************************
1774 * OLEMenu_GetMsgProc
1775 * Thread scope WH_GETMESSAGE hook proc filter function (callback)
1776 * This is invoked from a message hook installed in OleSetMenuDescriptor.
1778 static LRESULT CALLBACK OLEMenu_GetMsgProc(INT code, WPARAM wParam, LPARAM lParam)
1780 LPMSG pMsg;
1781 HOLEMENU hOleMenu = 0;
1782 OleMenuDescriptor *pOleMenuDescriptor = NULL;
1783 OleMenuHookItem *pHookItem = NULL;
1784 WORD wCode;
1786 TRACE("%i, %04lx, %08lx\n", code, wParam, lParam );
1788 /* Check if we're being asked to process a messages */
1789 if ( HC_ACTION != code )
1790 goto NEXTHOOK;
1792 /* Retrieve the current message being dispatched from lParam */
1793 pMsg = (LPMSG)lParam;
1795 /* Check if the message is destined for a window we are interested in:
1796 * If the window has an OLEMenu property we may need to dispatch
1797 * the menu message to its active objects window instead. */
1799 hOleMenu = GetPropW( pMsg->hwnd, prop_olemenuW );
1800 if ( !hOleMenu )
1801 goto NEXTHOOK;
1803 /* Process menu messages */
1804 switch( pMsg->message )
1806 case WM_COMMAND:
1808 wCode = HIWORD(pMsg->wParam); /* Get notification code */
1809 if ( wCode )
1810 goto NEXTHOOK; /* Not a menu message */
1811 break;
1813 default:
1814 goto NEXTHOOK;
1817 /* Get the menu descriptor */
1818 pOleMenuDescriptor = GlobalLock( hOleMenu );
1819 if ( !pOleMenuDescriptor ) /* Bad descriptor! */
1820 goto NEXTHOOK;
1822 /* If the message was for the server dispatch it accordingly */
1823 if ( pOleMenuDescriptor->bIsServerItem )
1825 /* Change the hWnd in the message to the active objects hWnd.
1826 * The message loop which reads this message will automatically
1827 * dispatch it to the embedded objects window. */
1828 pMsg->hwnd = pOleMenuDescriptor->hwndActiveObject;
1831 NEXTHOOK:
1832 if ( pOleMenuDescriptor )
1833 GlobalUnlock( hOleMenu );
1835 /* Lookup the hook item for the current thread */
1836 if ( !( pHookItem = OLEMenu_IsHookInstalled( GetCurrentThreadId() ) ) )
1838 /* This should never fail!! */
1839 WARN("could not retrieve hHook for current thread!\n" );
1840 return FALSE;
1843 /* Pass on the message to the next hooker */
1844 return CallNextHookEx( pHookItem->GetMsg_hHook, code, wParam, lParam );
1847 /***********************************************************************
1848 * OleCreateMenuDescriptor [OLE32.@]
1849 * Creates an OLE menu descriptor for OLE to use when dispatching
1850 * menu messages and commands.
1852 * PARAMS:
1853 * hmenuCombined - Handle to the objects combined menu
1854 * lpMenuWidths - Pointer to array of 6 LONG's indicating menus per group
1857 HOLEMENU WINAPI OleCreateMenuDescriptor(
1858 HMENU hmenuCombined,
1859 LPOLEMENUGROUPWIDTHS lpMenuWidths)
1861 HOLEMENU hOleMenu;
1862 OleMenuDescriptor *pOleMenuDescriptor;
1863 int i;
1865 if ( !hmenuCombined || !lpMenuWidths )
1866 return 0;
1868 /* Create an OLE menu descriptor */
1869 if ( !(hOleMenu = GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT,
1870 sizeof(OleMenuDescriptor) ) ) )
1871 return 0;
1873 pOleMenuDescriptor = GlobalLock( hOleMenu );
1874 if ( !pOleMenuDescriptor )
1875 return 0;
1877 /* Initialize menu group widths and hmenu */
1878 for ( i = 0; i < 6; i++ )
1879 pOleMenuDescriptor->mgw.width[i] = lpMenuWidths->width[i];
1881 pOleMenuDescriptor->hmenuCombined = hmenuCombined;
1882 pOleMenuDescriptor->bIsServerItem = FALSE;
1883 GlobalUnlock( hOleMenu );
1885 return hOleMenu;
1888 /***********************************************************************
1889 * OleDestroyMenuDescriptor [OLE32.@]
1890 * Destroy the shared menu descriptor
1892 HRESULT WINAPI OleDestroyMenuDescriptor(
1893 HOLEMENU hmenuDescriptor)
1895 if ( hmenuDescriptor )
1896 GlobalFree( hmenuDescriptor );
1897 return S_OK;
1900 /***********************************************************************
1901 * OleSetMenuDescriptor [OLE32.@]
1902 * Installs or removes OLE dispatching code for the containers frame window.
1904 * PARAMS
1905 * hOleMenu Handle to composite menu descriptor
1906 * hwndFrame Handle to containers frame window
1907 * hwndActiveObject Handle to objects in-place activation window
1908 * lpFrame Pointer to IOleInPlaceFrame on containers window
1909 * lpActiveObject Pointer to IOleInPlaceActiveObject on active in-place object
1911 * RETURNS
1912 * S_OK - menu installed correctly
1913 * E_FAIL, E_INVALIDARG, E_UNEXPECTED - failure
1915 * FIXME
1916 * The lpFrame and lpActiveObject parameters are currently ignored
1917 * OLE should install context sensitive help F1 filtering for the app when
1918 * these are non null.
1920 HRESULT WINAPI OleSetMenuDescriptor(
1921 HOLEMENU hOleMenu,
1922 HWND hwndFrame,
1923 HWND hwndActiveObject,
1924 LPOLEINPLACEFRAME lpFrame,
1925 LPOLEINPLACEACTIVEOBJECT lpActiveObject)
1927 OleMenuDescriptor *pOleMenuDescriptor = NULL;
1929 /* Check args */
1930 if ( !hwndFrame || (hOleMenu && !hwndActiveObject) )
1931 return E_INVALIDARG;
1933 if ( lpFrame || lpActiveObject )
1935 FIXME("(%p, %p, %p, %p, %p), Context sensitive help filtering not implemented!\n",
1936 hOleMenu,
1937 hwndFrame,
1938 hwndActiveObject,
1939 lpFrame,
1940 lpActiveObject);
1943 /* Set up a message hook to intercept the containers frame window messages.
1944 * The message filter is responsible for dispatching menu messages from the
1945 * shared menu which are intended for the object.
1948 if ( hOleMenu ) /* Want to install dispatching code */
1950 /* If OLEMenu hooks are already installed for this thread, fail
1951 * Note: This effectively means that OleSetMenuDescriptor cannot
1952 * be called twice in succession on the same frame window
1953 * without first calling it with a null hOleMenu to uninstall */
1954 if ( OLEMenu_IsHookInstalled( GetCurrentThreadId() ) )
1955 return E_FAIL;
1957 /* Get the menu descriptor */
1958 pOleMenuDescriptor = GlobalLock( hOleMenu );
1959 if ( !pOleMenuDescriptor )
1960 return E_UNEXPECTED;
1962 /* Update the menu descriptor */
1963 pOleMenuDescriptor->hwndFrame = hwndFrame;
1964 pOleMenuDescriptor->hwndActiveObject = hwndActiveObject;
1966 GlobalUnlock( hOleMenu );
1967 pOleMenuDescriptor = NULL;
1969 /* Add a menu descriptor windows property to the frame window */
1970 SetPropW( hwndFrame, prop_olemenuW, hOleMenu );
1972 /* Install thread scope message hooks for WH_GETMESSAGE and WH_CALLWNDPROC */
1973 if ( !OLEMenu_InstallHooks( GetCurrentThreadId() ) )
1974 return E_FAIL;
1976 else /* Want to uninstall dispatching code */
1978 /* Uninstall the hooks */
1979 if ( !OLEMenu_UnInstallHooks( GetCurrentThreadId() ) )
1980 return E_FAIL;
1982 /* Remove the menu descriptor property from the frame window */
1983 RemovePropW( hwndFrame, prop_olemenuW );
1986 return S_OK;
1989 /******************************************************************************
1990 * IsAccelerator [OLE32.@]
1991 * Mostly copied from controls/menu.c TranslateAccelerator implementation
1993 BOOL WINAPI IsAccelerator(HACCEL hAccel, int cAccelEntries, LPMSG lpMsg, WORD* lpwCmd)
1995 LPACCEL lpAccelTbl;
1996 int i;
1998 if(!lpMsg) return FALSE;
1999 if (!hAccel)
2001 WARN_(accel)("NULL accel handle\n");
2002 return FALSE;
2004 if((lpMsg->message != WM_KEYDOWN &&
2005 lpMsg->message != WM_SYSKEYDOWN &&
2006 lpMsg->message != WM_SYSCHAR &&
2007 lpMsg->message != WM_CHAR)) return FALSE;
2008 lpAccelTbl = HeapAlloc(GetProcessHeap(), 0, cAccelEntries * sizeof(ACCEL));
2009 if (NULL == lpAccelTbl)
2011 return FALSE;
2013 if (CopyAcceleratorTableW(hAccel, lpAccelTbl, cAccelEntries) != cAccelEntries)
2015 WARN_(accel)("CopyAcceleratorTableW failed\n");
2016 HeapFree(GetProcessHeap(), 0, lpAccelTbl);
2017 return FALSE;
2020 TRACE_(accel)("hAccel=%p, cAccelEntries=%d,"
2021 "msg->hwnd=%p, msg->message=%04x, wParam=%08lx, lParam=%08lx\n",
2022 hAccel, cAccelEntries,
2023 lpMsg->hwnd, lpMsg->message, lpMsg->wParam, lpMsg->lParam);
2024 for(i = 0; i < cAccelEntries; i++)
2026 if(lpAccelTbl[i].key != lpMsg->wParam)
2027 continue;
2029 if(lpMsg->message == WM_CHAR)
2031 if(!(lpAccelTbl[i].fVirt & FALT) && !(lpAccelTbl[i].fVirt & FVIRTKEY))
2033 TRACE_(accel)("found accel for WM_CHAR: ('%c')\n", LOWORD(lpMsg->wParam) & 0xff);
2034 goto found;
2037 else
2039 if(lpAccelTbl[i].fVirt & FVIRTKEY)
2041 INT mask = 0;
2042 TRACE_(accel)("found accel for virt_key %04lx (scan %04x)\n",
2043 lpMsg->wParam, HIWORD(lpMsg->lParam) & 0xff);
2044 if(GetKeyState(VK_SHIFT) & 0x8000) mask |= FSHIFT;
2045 if(GetKeyState(VK_CONTROL) & 0x8000) mask |= FCONTROL;
2046 if(GetKeyState(VK_MENU) & 0x8000) mask |= FALT;
2047 if(mask == (lpAccelTbl[i].fVirt & (FSHIFT | FCONTROL | FALT))) goto found;
2048 TRACE_(accel)("incorrect SHIFT/CTRL/ALT-state\n");
2050 else
2052 if(!(lpMsg->lParam & 0x01000000)) /* no special_key */
2054 if((lpAccelTbl[i].fVirt & FALT) && (lpMsg->lParam & 0x20000000))
2055 { /* ^^ ALT pressed */
2056 TRACE_(accel)("found accel for Alt-%c\n", LOWORD(lpMsg->wParam) & 0xff);
2057 goto found;
2064 WARN_(accel)("couldn't translate accelerator key\n");
2065 HeapFree(GetProcessHeap(), 0, lpAccelTbl);
2066 return FALSE;
2068 found:
2069 if(lpwCmd) *lpwCmd = lpAccelTbl[i].cmd;
2070 HeapFree(GetProcessHeap(), 0, lpAccelTbl);
2071 return TRUE;
2074 /***********************************************************************
2075 * ReleaseStgMedium [OLE32.@]
2077 void WINAPI ReleaseStgMedium(
2078 STGMEDIUM* pmedium)
2080 switch (pmedium->tymed)
2082 case TYMED_HGLOBAL:
2084 if ( (pmedium->pUnkForRelease==0) &&
2085 (pmedium->u.hGlobal!=0) )
2086 GlobalFree(pmedium->u.hGlobal);
2087 break;
2089 case TYMED_FILE:
2091 if (pmedium->u.lpszFileName!=0)
2093 if (pmedium->pUnkForRelease==0)
2095 DeleteFileW(pmedium->u.lpszFileName);
2098 CoTaskMemFree(pmedium->u.lpszFileName);
2100 break;
2102 case TYMED_ISTREAM:
2104 if (pmedium->u.pstm!=0)
2106 IStream_Release(pmedium->u.pstm);
2108 break;
2110 case TYMED_ISTORAGE:
2112 if (pmedium->u.pstg!=0)
2114 IStorage_Release(pmedium->u.pstg);
2116 break;
2118 case TYMED_GDI:
2120 if ( (pmedium->pUnkForRelease==0) &&
2121 (pmedium->u.hBitmap!=0) )
2122 DeleteObject(pmedium->u.hBitmap);
2123 break;
2125 case TYMED_MFPICT:
2127 if ( (pmedium->pUnkForRelease==0) &&
2128 (pmedium->u.hMetaFilePict!=0) )
2130 LPMETAFILEPICT pMP = GlobalLock(pmedium->u.hMetaFilePict);
2131 DeleteMetaFile(pMP->hMF);
2132 GlobalUnlock(pmedium->u.hMetaFilePict);
2133 GlobalFree(pmedium->u.hMetaFilePict);
2135 break;
2137 case TYMED_ENHMF:
2139 if ( (pmedium->pUnkForRelease==0) &&
2140 (pmedium->u.hEnhMetaFile!=0) )
2142 DeleteEnhMetaFile(pmedium->u.hEnhMetaFile);
2144 break;
2146 case TYMED_NULL:
2147 default:
2148 break;
2150 pmedium->tymed=TYMED_NULL;
2153 * After cleaning up, the unknown is released
2155 if (pmedium->pUnkForRelease!=0)
2157 IUnknown_Release(pmedium->pUnkForRelease);
2158 pmedium->pUnkForRelease = 0;
2162 /***
2163 * OLEDD_Initialize()
2165 * Initializes the OLE drag and drop data structures.
2167 static void OLEDD_Initialize(void)
2169 WNDCLASSW wndClass;
2171 ZeroMemory (&wndClass, sizeof(WNDCLASSW));
2172 wndClass.style = CS_GLOBALCLASS;
2173 wndClass.lpfnWndProc = OLEDD_DragTrackerWindowProc;
2174 wndClass.cbClsExtra = 0;
2175 wndClass.cbWndExtra = sizeof(TrackerWindowInfo*);
2176 wndClass.hCursor = 0;
2177 wndClass.hbrBackground = 0;
2178 wndClass.lpszClassName = OLEDD_DRAGTRACKERCLASS;
2180 RegisterClassW (&wndClass);
2183 /***
2184 * OLEDD_DragTrackerWindowProc()
2186 * This method is the WindowProcedure of the drag n drop tracking
2187 * window. During a drag n Drop operation, an invisible window is created
2188 * to receive the user input and act upon it. This procedure is in charge
2189 * of this behavior.
2192 #define DRAG_TIMER_ID 1
2194 static LRESULT WINAPI OLEDD_DragTrackerWindowProc(
2195 HWND hwnd,
2196 UINT uMsg,
2197 WPARAM wParam,
2198 LPARAM lParam)
2200 switch (uMsg)
2202 case WM_CREATE:
2204 LPCREATESTRUCTA createStruct = (LPCREATESTRUCTA)lParam;
2206 SetWindowLongPtrW(hwnd, 0, (LONG_PTR)createStruct->lpCreateParams);
2207 SetTimer(hwnd, DRAG_TIMER_ID, 50, NULL);
2209 break;
2211 case WM_TIMER:
2212 case WM_MOUSEMOVE:
2214 OLEDD_TrackMouseMove((TrackerWindowInfo*)GetWindowLongPtrA(hwnd, 0));
2215 break;
2217 case WM_LBUTTONUP:
2218 case WM_MBUTTONUP:
2219 case WM_RBUTTONUP:
2220 case WM_LBUTTONDOWN:
2221 case WM_MBUTTONDOWN:
2222 case WM_RBUTTONDOWN:
2224 OLEDD_TrackStateChange((TrackerWindowInfo*)GetWindowLongPtrA(hwnd, 0));
2225 break;
2227 case WM_DESTROY:
2229 KillTimer(hwnd, DRAG_TIMER_ID);
2230 break;
2235 * This is a window proc after all. Let's call the default.
2237 return DefWindowProcW (hwnd, uMsg, wParam, lParam);
2240 /***
2241 * OLEDD_TrackMouseMove()
2243 * This method is invoked while a drag and drop operation is in effect.
2244 * it will generate the appropriate callbacks in the drop source
2245 * and drop target. It will also provide the expected feedback to
2246 * the user.
2248 * params:
2249 * trackerInfo - Pointer to the structure identifying the
2250 * drag & drop operation that is currently
2251 * active.
2253 static void OLEDD_TrackMouseMove(TrackerWindowInfo* trackerInfo)
2255 HWND hwndNewTarget = 0;
2256 HRESULT hr = S_OK;
2257 POINT pt;
2260 * Get the handle of the window under the mouse
2262 pt.x = trackerInfo->curMousePos.x;
2263 pt.y = trackerInfo->curMousePos.y;
2264 hwndNewTarget = WindowFromPoint(pt);
2267 * Every time, we re-initialize the effects passed to the
2268 * IDropTarget to the effects allowed by the source.
2270 *trackerInfo->pdwEffect = trackerInfo->dwOKEffect;
2273 * If we are hovering over the same target as before, send the
2274 * DragOver notification
2276 if ( (trackerInfo->curDragTarget != 0) &&
2277 (trackerInfo->curTargetHWND == hwndNewTarget) )
2279 IDropTarget_DragOver(trackerInfo->curDragTarget,
2280 trackerInfo->dwKeyState,
2281 trackerInfo->curMousePos,
2282 trackerInfo->pdwEffect);
2284 else
2287 * If we changed window, we have to notify our old target and check for
2288 * the new one.
2290 if (trackerInfo->curDragTarget)
2291 IDropTarget_DragLeave(trackerInfo->curDragTarget);
2294 * Make sure we're hovering over a window.
2296 if (hwndNewTarget)
2299 * Find-out if there is a drag target under the mouse
2301 HWND next_target_wnd = hwndNewTarget;
2303 trackerInfo->curTargetHWND = hwndNewTarget;
2305 while (next_target_wnd && !is_droptarget(next_target_wnd))
2306 next_target_wnd = GetParent(next_target_wnd);
2308 if (next_target_wnd) hwndNewTarget = next_target_wnd;
2310 trackerInfo->curDragTargetHWND = hwndNewTarget;
2311 if(trackerInfo->curDragTarget) IDropTarget_Release(trackerInfo->curDragTarget);
2312 trackerInfo->curDragTarget = get_droptarget_pointer(hwndNewTarget);
2315 * If there is, notify it that we just dragged-in
2317 if (trackerInfo->curDragTarget)
2319 hr = IDropTarget_DragEnter(trackerInfo->curDragTarget,
2320 trackerInfo->dataObject,
2321 trackerInfo->dwKeyState,
2322 trackerInfo->curMousePos,
2323 trackerInfo->pdwEffect);
2325 /* failed DragEnter() means invalid target */
2326 if (hr != S_OK)
2328 trackerInfo->curDragTargetHWND = 0;
2329 trackerInfo->curTargetHWND = 0;
2330 IDropTarget_Release(trackerInfo->curDragTarget);
2331 trackerInfo->curDragTarget = 0;
2335 else
2338 * The mouse is not over a window so we don't track anything.
2340 trackerInfo->curDragTargetHWND = 0;
2341 trackerInfo->curTargetHWND = 0;
2342 if(trackerInfo->curDragTarget) IDropTarget_Release(trackerInfo->curDragTarget);
2343 trackerInfo->curDragTarget = 0;
2348 * Now that we have done that, we have to tell the source to give
2349 * us feedback on the work being done by the target. If we don't
2350 * have a target, simulate no effect.
2352 if (trackerInfo->curDragTarget==0)
2354 *trackerInfo->pdwEffect = DROPEFFECT_NONE;
2357 hr = IDropSource_GiveFeedback(trackerInfo->dropSource,
2358 *trackerInfo->pdwEffect);
2361 * When we ask for feedback from the drop source, sometimes it will
2362 * do all the necessary work and sometimes it will not handle it
2363 * when that's the case, we must display the standard drag and drop
2364 * cursors.
2366 if (hr == DRAGDROP_S_USEDEFAULTCURSORS)
2368 HCURSOR hCur;
2370 if (*trackerInfo->pdwEffect & DROPEFFECT_MOVE)
2372 hCur = LoadCursorW(hProxyDll, MAKEINTRESOURCEW(2));
2374 else if (*trackerInfo->pdwEffect & DROPEFFECT_COPY)
2376 hCur = LoadCursorW(hProxyDll, MAKEINTRESOURCEW(3));
2378 else if (*trackerInfo->pdwEffect & DROPEFFECT_LINK)
2380 hCur = LoadCursorW(hProxyDll, MAKEINTRESOURCEW(4));
2382 else
2384 hCur = LoadCursorW(hProxyDll, MAKEINTRESOURCEW(1));
2387 SetCursor(hCur);
2391 /***
2392 * OLEDD_TrackStateChange()
2394 * This method is invoked while a drag and drop operation is in effect.
2395 * It is used to notify the drop target/drop source callbacks when
2396 * the state of the keyboard or mouse button change.
2398 * params:
2399 * trackerInfo - Pointer to the structure identifying the
2400 * drag & drop operation that is currently
2401 * active.
2403 static void OLEDD_TrackStateChange(TrackerWindowInfo* trackerInfo)
2406 * Ask the drop source what to do with the operation.
2408 trackerInfo->returnValue = IDropSource_QueryContinueDrag(
2409 trackerInfo->dropSource,
2410 trackerInfo->escPressed,
2411 trackerInfo->dwKeyState);
2414 * All the return valued will stop the operation except the S_OK
2415 * return value.
2417 if (trackerInfo->returnValue!=S_OK)
2420 * Make sure the message loop in DoDragDrop stops
2422 trackerInfo->trackingDone = TRUE;
2425 * Release the mouse in case the drop target decides to show a popup
2426 * or a menu or something.
2428 ReleaseCapture();
2431 * If we end-up over a target, drop the object in the target or
2432 * inform the target that the operation was cancelled.
2434 if (trackerInfo->curDragTarget)
2436 switch (trackerInfo->returnValue)
2439 * If the source wants us to complete the operation, we tell
2440 * the drop target that we just dropped the object in it.
2442 case DRAGDROP_S_DROP:
2443 if (*trackerInfo->pdwEffect != DROPEFFECT_NONE)
2444 IDropTarget_Drop(trackerInfo->curDragTarget,
2445 trackerInfo->dataObject,
2446 trackerInfo->dwKeyState,
2447 trackerInfo->curMousePos,
2448 trackerInfo->pdwEffect);
2449 else
2450 IDropTarget_DragLeave(trackerInfo->curDragTarget);
2451 break;
2454 * If the source told us that we should cancel, fool the drop
2455 * target by telling it that the mouse left it's window.
2456 * Also set the drop effect to "NONE" in case the application
2457 * ignores the result of DoDragDrop.
2459 case DRAGDROP_S_CANCEL:
2460 IDropTarget_DragLeave(trackerInfo->curDragTarget);
2461 *trackerInfo->pdwEffect = DROPEFFECT_NONE;
2462 break;
2468 /***
2469 * OLEDD_GetButtonState()
2471 * This method will use the current state of the keyboard to build
2472 * a button state mask equivalent to the one passed in the
2473 * WM_MOUSEMOVE wParam.
2475 static DWORD OLEDD_GetButtonState(void)
2477 BYTE keyboardState[256];
2478 DWORD keyMask = 0;
2480 GetKeyboardState(keyboardState);
2482 if ( (keyboardState[VK_SHIFT] & 0x80) !=0)
2483 keyMask |= MK_SHIFT;
2485 if ( (keyboardState[VK_CONTROL] & 0x80) !=0)
2486 keyMask |= MK_CONTROL;
2488 if ( (keyboardState[VK_LBUTTON] & 0x80) !=0)
2489 keyMask |= MK_LBUTTON;
2491 if ( (keyboardState[VK_RBUTTON] & 0x80) !=0)
2492 keyMask |= MK_RBUTTON;
2494 if ( (keyboardState[VK_MBUTTON] & 0x80) !=0)
2495 keyMask |= MK_MBUTTON;
2497 return keyMask;
2500 /***
2501 * OLEDD_GetButtonState()
2503 * This method will read the default value of the registry key in
2504 * parameter and extract a DWORD value from it. The registry key value
2505 * can be in a string key or a DWORD key.
2507 * params:
2508 * regKey - Key to read the default value from
2509 * pdwValue - Pointer to the location where the DWORD
2510 * value is returned. This value is not modified
2511 * if the value is not found.
2514 static void OLEUTL_ReadRegistryDWORDValue(
2515 HKEY regKey,
2516 DWORD* pdwValue)
2518 WCHAR buffer[20];
2519 DWORD cbData = sizeof(buffer);
2520 DWORD dwKeyType;
2521 LONG lres;
2523 lres = RegQueryValueExW(regKey,
2524 emptyW,
2525 NULL,
2526 &dwKeyType,
2527 (LPBYTE)buffer,
2528 &cbData);
2530 if (lres==ERROR_SUCCESS)
2532 switch (dwKeyType)
2534 case REG_DWORD:
2535 *pdwValue = *(DWORD*)buffer;
2536 break;
2537 case REG_EXPAND_SZ:
2538 case REG_MULTI_SZ:
2539 case REG_SZ:
2540 *pdwValue = (DWORD)strtoulW(buffer, NULL, 10);
2541 break;
2546 /******************************************************************************
2547 * OleDraw (OLE32.@)
2549 * The operation of this function is documented literally in the WinAPI
2550 * documentation to involve a QueryInterface for the IViewObject interface,
2551 * followed by a call to IViewObject::Draw.
2553 HRESULT WINAPI OleDraw(
2554 IUnknown *pUnk,
2555 DWORD dwAspect,
2556 HDC hdcDraw,
2557 LPCRECT lprcBounds)
2559 HRESULT hres;
2560 IViewObject *viewobject;
2562 hres = IUnknown_QueryInterface(pUnk,
2563 &IID_IViewObject,
2564 (void**)&viewobject);
2566 if (SUCCEEDED(hres))
2568 RECTL rectl;
2570 rectl.left = lprcBounds->left;
2571 rectl.right = lprcBounds->right;
2572 rectl.top = lprcBounds->top;
2573 rectl.bottom = lprcBounds->bottom;
2574 hres = IViewObject_Draw(viewobject, dwAspect, -1, 0, 0, 0, hdcDraw, &rectl, 0, 0, 0);
2576 IViewObject_Release(viewobject);
2577 return hres;
2579 else
2581 return DV_E_NOIVIEWOBJECT;
2585 /***********************************************************************
2586 * OleTranslateAccelerator [OLE32.@]
2588 HRESULT WINAPI OleTranslateAccelerator (LPOLEINPLACEFRAME lpFrame,
2589 LPOLEINPLACEFRAMEINFO lpFrameInfo, LPMSG lpmsg)
2591 WORD wID;
2593 TRACE("(%p,%p,%p)\n", lpFrame, lpFrameInfo, lpmsg);
2595 if (IsAccelerator(lpFrameInfo->haccel,lpFrameInfo->cAccelEntries,lpmsg,&wID))
2596 return IOleInPlaceFrame_TranslateAccelerator(lpFrame,lpmsg,wID);
2598 return S_FALSE;
2601 /******************************************************************************
2602 * OleCreate [OLE32.@]
2605 HRESULT WINAPI OleCreate(
2606 REFCLSID rclsid,
2607 REFIID riid,
2608 DWORD renderopt,
2609 LPFORMATETC pFormatEtc,
2610 LPOLECLIENTSITE pClientSite,
2611 LPSTORAGE pStg,
2612 LPVOID* ppvObj)
2614 HRESULT hres;
2615 IUnknown * pUnk = NULL;
2616 IOleObject *pOleObject = NULL;
2618 TRACE("(%s, %s, %d, %p, %p, %p, %p)\n", debugstr_guid(rclsid),
2619 debugstr_guid(riid), renderopt, pFormatEtc, pClientSite, pStg, ppvObj);
2621 hres = CoCreateInstance(rclsid, 0, CLSCTX_INPROC_SERVER|CLSCTX_INPROC_HANDLER, riid, (LPVOID*)&pUnk);
2623 if (SUCCEEDED(hres))
2624 hres = IStorage_SetClass(pStg, rclsid);
2626 if (pClientSite && SUCCEEDED(hres))
2628 hres = IUnknown_QueryInterface(pUnk, &IID_IOleObject, (LPVOID*)&pOleObject);
2629 if (SUCCEEDED(hres))
2631 DWORD dwStatus;
2632 hres = IOleObject_GetMiscStatus(pOleObject, DVASPECT_CONTENT, &dwStatus);
2636 if (SUCCEEDED(hres))
2638 IPersistStorage * pPS;
2639 if (SUCCEEDED((hres = IUnknown_QueryInterface(pUnk, &IID_IPersistStorage, (LPVOID*)&pPS))))
2641 TRACE("trying to set stg %p\n", pStg);
2642 hres = IPersistStorage_InitNew(pPS, pStg);
2643 TRACE("-- result 0x%08x\n", hres);
2644 IPersistStorage_Release(pPS);
2648 if (pClientSite && SUCCEEDED(hres))
2650 TRACE("trying to set clientsite %p\n", pClientSite);
2651 hres = IOleObject_SetClientSite(pOleObject, pClientSite);
2652 TRACE("-- result 0x%08x\n", hres);
2655 if (pOleObject)
2656 IOleObject_Release(pOleObject);
2658 if (((renderopt == OLERENDER_DRAW) || (renderopt == OLERENDER_FORMAT)) &&
2659 SUCCEEDED(hres))
2661 IRunnableObject *pRunnable;
2662 IOleCache *pOleCache;
2663 HRESULT hres2;
2665 hres2 = IUnknown_QueryInterface(pUnk, &IID_IRunnableObject, (void **)&pRunnable);
2666 if (SUCCEEDED(hres2))
2668 hres = IRunnableObject_Run(pRunnable, NULL);
2669 IRunnableObject_Release(pRunnable);
2672 if (SUCCEEDED(hres))
2674 hres2 = IUnknown_QueryInterface(pUnk, &IID_IOleCache, (void **)&pOleCache);
2675 if (SUCCEEDED(hres2))
2677 DWORD dwConnection;
2678 if (renderopt == OLERENDER_DRAW && !pFormatEtc) {
2679 FORMATETC pfe;
2680 pfe.cfFormat = 0;
2681 pfe.ptd = NULL;
2682 pfe.dwAspect = DVASPECT_CONTENT;
2683 pfe.lindex = -1;
2684 pfe.tymed = TYMED_NULL;
2685 hres = IOleCache_Cache(pOleCache, &pfe, ADVF_PRIMEFIRST, &dwConnection);
2687 else
2688 hres = IOleCache_Cache(pOleCache, pFormatEtc, ADVF_PRIMEFIRST, &dwConnection);
2689 IOleCache_Release(pOleCache);
2694 if (FAILED(hres) && pUnk)
2696 IUnknown_Release(pUnk);
2697 pUnk = NULL;
2700 *ppvObj = pUnk;
2702 TRACE("-- %p\n", pUnk);
2703 return hres;
2706 /******************************************************************************
2707 * OleGetAutoConvert [OLE32.@]
2709 HRESULT WINAPI OleGetAutoConvert(REFCLSID clsidOld, LPCLSID pClsidNew)
2711 static const WCHAR wszAutoConvertTo[] = {'A','u','t','o','C','o','n','v','e','r','t','T','o',0};
2712 HKEY hkey = NULL;
2713 WCHAR buf[CHARS_IN_GUID];
2714 LONG len;
2715 HRESULT res = S_OK;
2717 res = COM_OpenKeyForCLSID(clsidOld, wszAutoConvertTo, KEY_READ, &hkey);
2718 if (FAILED(res))
2719 goto done;
2721 len = sizeof(buf);
2722 if (RegQueryValueW(hkey, NULL, buf, &len))
2724 res = REGDB_E_KEYMISSING;
2725 goto done;
2727 res = CLSIDFromString(buf, pClsidNew);
2728 done:
2729 if (hkey) RegCloseKey(hkey);
2730 return res;
2733 /******************************************************************************
2734 * OleSetAutoConvert [OLE32.@]
2736 HRESULT WINAPI OleSetAutoConvert(REFCLSID clsidOld, REFCLSID clsidNew)
2738 static const WCHAR wszAutoConvertTo[] = {'A','u','t','o','C','o','n','v','e','r','t','T','o',0};
2739 HKEY hkey = NULL;
2740 WCHAR szClsidNew[CHARS_IN_GUID];
2741 HRESULT res = S_OK;
2743 TRACE("(%s,%s)\n", debugstr_guid(clsidOld), debugstr_guid(clsidNew));
2745 res = COM_OpenKeyForCLSID(clsidOld, NULL, KEY_READ | KEY_WRITE, &hkey);
2746 if (FAILED(res))
2747 goto done;
2748 StringFromGUID2(clsidNew, szClsidNew, CHARS_IN_GUID);
2749 if (RegSetValueW(hkey, wszAutoConvertTo, REG_SZ, szClsidNew, (strlenW(szClsidNew)+1) * sizeof(WCHAR)))
2751 res = REGDB_E_WRITEREGDB;
2752 goto done;
2755 done:
2756 if (hkey) RegCloseKey(hkey);
2757 return res;
2760 /******************************************************************************
2761 * OleDoAutoConvert [OLE32.@]
2763 HRESULT WINAPI OleDoAutoConvert(LPSTORAGE pStg, LPCLSID pClsidNew)
2765 FIXME("(%p,%p) : stub\n",pStg,pClsidNew);
2766 return E_NOTIMPL;
2769 /******************************************************************************
2770 * OleIsRunning [OLE32.@]
2772 BOOL WINAPI OleIsRunning(LPOLEOBJECT object)
2774 IRunnableObject *pRunnable;
2775 HRESULT hr;
2776 BOOL running;
2778 TRACE("(%p)\n", object);
2780 if (!object) return FALSE;
2782 hr = IOleObject_QueryInterface(object, &IID_IRunnableObject, (void **)&pRunnable);
2783 if (FAILED(hr))
2784 return TRUE;
2785 running = IRunnableObject_IsRunning(pRunnable);
2786 IRunnableObject_Release(pRunnable);
2787 return running;
2790 /***********************************************************************
2791 * OleNoteObjectVisible [OLE32.@]
2793 HRESULT WINAPI OleNoteObjectVisible(LPUNKNOWN pUnknown, BOOL bVisible)
2795 TRACE("(%p, %s)\n", pUnknown, bVisible ? "TRUE" : "FALSE");
2796 return CoLockObjectExternal(pUnknown, bVisible, TRUE);
2800 /***********************************************************************
2801 * OLE_FreeClipDataArray [internal]
2803 * NOTES:
2804 * frees the data associated with an array of CLIPDATAs
2806 static void OLE_FreeClipDataArray(ULONG count, CLIPDATA * pClipDataArray)
2808 ULONG i;
2809 for (i = 0; i < count; i++)
2810 if (pClipDataArray[i].pClipData)
2811 CoTaskMemFree(pClipDataArray[i].pClipData);
2814 /***********************************************************************
2815 * PropSysAllocString [OLE32.@]
2816 * NOTES
2817 * Forward to oleaut32.
2819 BSTR WINAPI PropSysAllocString(LPCOLESTR str)
2821 return SysAllocString(str);
2824 /***********************************************************************
2825 * PropSysFreeString [OLE32.@]
2826 * NOTES
2827 * Forward to oleaut32.
2829 void WINAPI PropSysFreeString(LPOLESTR str)
2831 SysFreeString(str);
2834 /******************************************************************************
2835 * Check if a PROPVARIANT's type is valid.
2837 static inline HRESULT PROPVARIANT_ValidateType(VARTYPE vt)
2839 switch (vt)
2841 case VT_EMPTY:
2842 case VT_NULL:
2843 case VT_I1:
2844 case VT_I2:
2845 case VT_I4:
2846 case VT_I8:
2847 case VT_R4:
2848 case VT_R8:
2849 case VT_CY:
2850 case VT_DATE:
2851 case VT_BSTR:
2852 case VT_ERROR:
2853 case VT_BOOL:
2854 case VT_DECIMAL:
2855 case VT_UI1:
2856 case VT_UI2:
2857 case VT_UI4:
2858 case VT_UI8:
2859 case VT_LPSTR:
2860 case VT_LPWSTR:
2861 case VT_FILETIME:
2862 case VT_BLOB:
2863 case VT_STREAM:
2864 case VT_STORAGE:
2865 case VT_STREAMED_OBJECT:
2866 case VT_STORED_OBJECT:
2867 case VT_BLOB_OBJECT:
2868 case VT_CF:
2869 case VT_CLSID:
2870 case VT_I1|VT_VECTOR:
2871 case VT_I2|VT_VECTOR:
2872 case VT_I4|VT_VECTOR:
2873 case VT_I8|VT_VECTOR:
2874 case VT_R4|VT_VECTOR:
2875 case VT_R8|VT_VECTOR:
2876 case VT_CY|VT_VECTOR:
2877 case VT_DATE|VT_VECTOR:
2878 case VT_BSTR|VT_VECTOR:
2879 case VT_ERROR|VT_VECTOR:
2880 case VT_BOOL|VT_VECTOR:
2881 case VT_VARIANT|VT_VECTOR:
2882 case VT_UI1|VT_VECTOR:
2883 case VT_UI2|VT_VECTOR:
2884 case VT_UI4|VT_VECTOR:
2885 case VT_UI8|VT_VECTOR:
2886 case VT_LPSTR|VT_VECTOR:
2887 case VT_LPWSTR|VT_VECTOR:
2888 case VT_FILETIME|VT_VECTOR:
2889 case VT_CF|VT_VECTOR:
2890 case VT_CLSID|VT_VECTOR:
2891 return S_OK;
2893 WARN("Bad type %d\n", vt);
2894 return STG_E_INVALIDPARAMETER;
2897 /***********************************************************************
2898 * PropVariantClear [OLE32.@]
2900 HRESULT WINAPI PropVariantClear(PROPVARIANT * pvar) /* [in/out] */
2902 HRESULT hr;
2904 TRACE("(%p)\n", pvar);
2906 if (!pvar)
2907 return S_OK;
2909 hr = PROPVARIANT_ValidateType(pvar->vt);
2910 if (FAILED(hr))
2911 return hr;
2913 switch(pvar->vt)
2915 case VT_EMPTY:
2916 case VT_NULL:
2917 case VT_I1:
2918 case VT_I2:
2919 case VT_I4:
2920 case VT_I8:
2921 case VT_R4:
2922 case VT_R8:
2923 case VT_CY:
2924 case VT_DATE:
2925 case VT_ERROR:
2926 case VT_BOOL:
2927 case VT_DECIMAL:
2928 case VT_UI1:
2929 case VT_UI2:
2930 case VT_UI4:
2931 case VT_UI8:
2932 case VT_FILETIME:
2933 break;
2934 case VT_STREAM:
2935 case VT_STREAMED_OBJECT:
2936 case VT_STORAGE:
2937 case VT_STORED_OBJECT:
2938 if (pvar->u.pStream)
2939 IStream_Release(pvar->u.pStream);
2940 break;
2941 case VT_CLSID:
2942 case VT_LPSTR:
2943 case VT_LPWSTR:
2944 /* pick an arbitrary typed pointer - we don't care about the type
2945 * as we are just freeing it */
2946 CoTaskMemFree(pvar->u.puuid);
2947 break;
2948 case VT_BLOB:
2949 case VT_BLOB_OBJECT:
2950 CoTaskMemFree(pvar->u.blob.pBlobData);
2951 break;
2952 case VT_BSTR:
2953 PropSysFreeString(pvar->u.bstrVal);
2954 break;
2955 case VT_CF:
2956 if (pvar->u.pclipdata)
2958 OLE_FreeClipDataArray(1, pvar->u.pclipdata);
2959 CoTaskMemFree(pvar->u.pclipdata);
2961 break;
2962 default:
2963 if (pvar->vt & VT_VECTOR)
2965 ULONG i;
2967 switch (pvar->vt & ~VT_VECTOR)
2969 case VT_VARIANT:
2970 FreePropVariantArray(pvar->u.capropvar.cElems, pvar->u.capropvar.pElems);
2971 break;
2972 case VT_CF:
2973 OLE_FreeClipDataArray(pvar->u.caclipdata.cElems, pvar->u.caclipdata.pElems);
2974 break;
2975 case VT_BSTR:
2976 for (i = 0; i < pvar->u.cabstr.cElems; i++)
2977 PropSysFreeString(pvar->u.cabstr.pElems[i]);
2978 break;
2979 case VT_LPSTR:
2980 for (i = 0; i < pvar->u.calpstr.cElems; i++)
2981 CoTaskMemFree(pvar->u.calpstr.pElems[i]);
2982 break;
2983 case VT_LPWSTR:
2984 for (i = 0; i < pvar->u.calpwstr.cElems; i++)
2985 CoTaskMemFree(pvar->u.calpwstr.pElems[i]);
2986 break;
2988 if (pvar->vt & ~VT_VECTOR)
2990 /* pick an arbitrary VT_VECTOR structure - they all have the same
2991 * memory layout */
2992 CoTaskMemFree(pvar->u.capropvar.pElems);
2995 else
2996 WARN("Invalid/unsupported type %d\n", pvar->vt);
2999 ZeroMemory(pvar, sizeof(*pvar));
3001 return S_OK;
3004 /***********************************************************************
3005 * PropVariantCopy [OLE32.@]
3007 HRESULT WINAPI PropVariantCopy(PROPVARIANT *pvarDest, /* [out] */
3008 const PROPVARIANT *pvarSrc) /* [in] */
3010 ULONG len;
3011 HRESULT hr;
3013 TRACE("(%p, %p vt %04x)\n", pvarDest, pvarSrc, pvarSrc->vt);
3015 hr = PROPVARIANT_ValidateType(pvarSrc->vt);
3016 if (FAILED(hr))
3017 return hr;
3019 /* this will deal with most cases */
3020 *pvarDest = *pvarSrc;
3022 switch(pvarSrc->vt)
3024 case VT_EMPTY:
3025 case VT_NULL:
3026 case VT_I1:
3027 case VT_UI1:
3028 case VT_I2:
3029 case VT_UI2:
3030 case VT_BOOL:
3031 case VT_DECIMAL:
3032 case VT_I4:
3033 case VT_UI4:
3034 case VT_R4:
3035 case VT_ERROR:
3036 case VT_I8:
3037 case VT_UI8:
3038 case VT_R8:
3039 case VT_CY:
3040 case VT_DATE:
3041 case VT_FILETIME:
3042 break;
3043 case VT_STREAM:
3044 case VT_STREAMED_OBJECT:
3045 case VT_STORAGE:
3046 case VT_STORED_OBJECT:
3047 IUnknown_AddRef((LPUNKNOWN)pvarDest->u.pStream);
3048 break;
3049 case VT_CLSID:
3050 pvarDest->u.puuid = CoTaskMemAlloc(sizeof(CLSID));
3051 *pvarDest->u.puuid = *pvarSrc->u.puuid;
3052 break;
3053 case VT_LPSTR:
3054 len = strlen(pvarSrc->u.pszVal);
3055 pvarDest->u.pszVal = CoTaskMemAlloc((len+1)*sizeof(CHAR));
3056 CopyMemory(pvarDest->u.pszVal, pvarSrc->u.pszVal, (len+1)*sizeof(CHAR));
3057 break;
3058 case VT_LPWSTR:
3059 len = lstrlenW(pvarSrc->u.pwszVal);
3060 pvarDest->u.pwszVal = CoTaskMemAlloc((len+1)*sizeof(WCHAR));
3061 CopyMemory(pvarDest->u.pwszVal, pvarSrc->u.pwszVal, (len+1)*sizeof(WCHAR));
3062 break;
3063 case VT_BLOB:
3064 case VT_BLOB_OBJECT:
3065 if (pvarSrc->u.blob.pBlobData)
3067 len = pvarSrc->u.blob.cbSize;
3068 pvarDest->u.blob.pBlobData = CoTaskMemAlloc(len);
3069 CopyMemory(pvarDest->u.blob.pBlobData, pvarSrc->u.blob.pBlobData, len);
3071 break;
3072 case VT_BSTR:
3073 pvarDest->u.bstrVal = PropSysAllocString(pvarSrc->u.bstrVal);
3074 break;
3075 case VT_CF:
3076 if (pvarSrc->u.pclipdata)
3078 len = pvarSrc->u.pclipdata->cbSize - sizeof(pvarSrc->u.pclipdata->ulClipFmt);
3079 pvarDest->u.pclipdata = CoTaskMemAlloc(sizeof (CLIPDATA));
3080 pvarDest->u.pclipdata->cbSize = pvarSrc->u.pclipdata->cbSize;
3081 pvarDest->u.pclipdata->ulClipFmt = pvarSrc->u.pclipdata->ulClipFmt;
3082 pvarDest->u.pclipdata->pClipData = CoTaskMemAlloc(len);
3083 CopyMemory(pvarDest->u.pclipdata->pClipData, pvarSrc->u.pclipdata->pClipData, len);
3085 break;
3086 default:
3087 if (pvarSrc->vt & VT_VECTOR)
3089 int elemSize;
3090 ULONG i;
3092 switch(pvarSrc->vt & ~VT_VECTOR)
3094 case VT_I1: elemSize = sizeof(pvarSrc->u.cVal); break;
3095 case VT_UI1: elemSize = sizeof(pvarSrc->u.bVal); break;
3096 case VT_I2: elemSize = sizeof(pvarSrc->u.iVal); break;
3097 case VT_UI2: elemSize = sizeof(pvarSrc->u.uiVal); break;
3098 case VT_BOOL: elemSize = sizeof(pvarSrc->u.boolVal); break;
3099 case VT_I4: elemSize = sizeof(pvarSrc->u.lVal); break;
3100 case VT_UI4: elemSize = sizeof(pvarSrc->u.ulVal); break;
3101 case VT_R4: elemSize = sizeof(pvarSrc->u.fltVal); break;
3102 case VT_R8: elemSize = sizeof(pvarSrc->u.dblVal); break;
3103 case VT_ERROR: elemSize = sizeof(pvarSrc->u.scode); break;
3104 case VT_I8: elemSize = sizeof(pvarSrc->u.hVal); break;
3105 case VT_UI8: elemSize = sizeof(pvarSrc->u.uhVal); break;
3106 case VT_CY: elemSize = sizeof(pvarSrc->u.cyVal); break;
3107 case VT_DATE: elemSize = sizeof(pvarSrc->u.date); break;
3108 case VT_FILETIME: elemSize = sizeof(pvarSrc->u.filetime); break;
3109 case VT_CLSID: elemSize = sizeof(*pvarSrc->u.puuid); break;
3110 case VT_CF: elemSize = sizeof(*pvarSrc->u.pclipdata); break;
3111 case VT_BSTR: elemSize = sizeof(pvarSrc->u.bstrVal); break;
3112 case VT_LPSTR: elemSize = sizeof(pvarSrc->u.pszVal); break;
3113 case VT_LPWSTR: elemSize = sizeof(pvarSrc->u.pwszVal); break;
3114 case VT_VARIANT: elemSize = sizeof(*pvarSrc->u.pvarVal); break;
3116 default:
3117 FIXME("Invalid element type: %ul\n", pvarSrc->vt & ~VT_VECTOR);
3118 return E_INVALIDARG;
3120 len = pvarSrc->u.capropvar.cElems;
3121 pvarDest->u.capropvar.pElems = CoTaskMemAlloc(len * elemSize);
3122 if (pvarSrc->vt == (VT_VECTOR | VT_VARIANT))
3124 for (i = 0; i < len; i++)
3125 PropVariantCopy(&pvarDest->u.capropvar.pElems[i], &pvarSrc->u.capropvar.pElems[i]);
3127 else if (pvarSrc->vt == (VT_VECTOR | VT_CF))
3129 FIXME("Copy clipformats\n");
3131 else if (pvarSrc->vt == (VT_VECTOR | VT_BSTR))
3133 for (i = 0; i < len; i++)
3134 pvarDest->u.cabstr.pElems[i] = PropSysAllocString(pvarSrc->u.cabstr.pElems[i]);
3136 else if (pvarSrc->vt == (VT_VECTOR | VT_LPSTR))
3138 size_t strLen;
3139 for (i = 0; i < len; i++)
3141 strLen = lstrlenA(pvarSrc->u.calpstr.pElems[i]) + 1;
3142 pvarDest->u.calpstr.pElems[i] = CoTaskMemAlloc(strLen);
3143 memcpy(pvarDest->u.calpstr.pElems[i],
3144 pvarSrc->u.calpstr.pElems[i], strLen);
3147 else if (pvarSrc->vt == (VT_VECTOR | VT_LPWSTR))
3149 size_t strLen;
3150 for (i = 0; i < len; i++)
3152 strLen = (lstrlenW(pvarSrc->u.calpwstr.pElems[i]) + 1) *
3153 sizeof(WCHAR);
3154 pvarDest->u.calpstr.pElems[i] = CoTaskMemAlloc(strLen);
3155 memcpy(pvarDest->u.calpstr.pElems[i],
3156 pvarSrc->u.calpstr.pElems[i], strLen);
3159 else
3160 CopyMemory(pvarDest->u.capropvar.pElems, pvarSrc->u.capropvar.pElems, len * elemSize);
3162 else
3163 WARN("Invalid/unsupported type %d\n", pvarSrc->vt);
3166 return S_OK;
3169 /***********************************************************************
3170 * FreePropVariantArray [OLE32.@]
3172 HRESULT WINAPI FreePropVariantArray(ULONG cVariants, /* [in] */
3173 PROPVARIANT *rgvars) /* [in/out] */
3175 ULONG i;
3177 TRACE("(%u, %p)\n", cVariants, rgvars);
3179 if (!rgvars)
3180 return E_INVALIDARG;
3182 for(i = 0; i < cVariants; i++)
3183 PropVariantClear(&rgvars[i]);
3185 return S_OK;
3188 /******************************************************************************
3189 * DllDebugObjectRPCHook (OLE32.@)
3190 * turns on and off internal debugging, pointer is only used on macintosh
3193 BOOL WINAPI DllDebugObjectRPCHook(BOOL b, void *dummy)
3195 FIXME("stub\n");
3196 return TRUE;