winaspi.dll16: Simplify the "pointer to start of array" idiom.
[wine/multimedia.git] / dlls / ole32 / ole2.c
blob6d37aa66e25d8925eb28c66aea8dc6f968ecb7e1
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) ? TRUE : FALSE;
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 IUnknown_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 = IOleObject_QueryInterface(pUnk,
1337 &IID_IPersistStorage,
1338 (void**)&persistStorage);
1340 if (SUCCEEDED(hres))
1342 hres = IPersistStorage_Load(persistStorage, pStg);
1344 IPersistStorage_Release(persistStorage);
1345 persistStorage = NULL;
1348 if (SUCCEEDED(hres) && pClientSite)
1350 * Inform the new object of it's client site.
1352 hres = IOleObject_SetClientSite(pOleObject, pClientSite);
1355 * Cleanup interfaces used internally
1357 if (pOleObject)
1358 IOleObject_Release(pOleObject);
1360 if (SUCCEEDED(hres))
1362 IOleLink *pOleLink;
1363 HRESULT hres1;
1364 hres1 = IUnknown_QueryInterface(pUnk, &IID_IOleLink, (void **)&pOleLink);
1365 if (SUCCEEDED(hres1))
1367 FIXME("handle OLE link\n");
1368 IOleLink_Release(pOleLink);
1372 if (FAILED(hres))
1374 IUnknown_Release(pUnk);
1375 pUnk = NULL;
1378 *ppvObj = pUnk;
1380 return hres;
1383 /***********************************************************************
1384 * OleSave [OLE32.@]
1386 HRESULT WINAPI OleSave(
1387 LPPERSISTSTORAGE pPS,
1388 LPSTORAGE pStg,
1389 BOOL fSameAsLoad)
1391 HRESULT hres;
1392 CLSID objectClass;
1394 TRACE("(%p,%p,%x)\n", pPS, pStg, fSameAsLoad);
1397 * First, we transfer the class ID (if available)
1399 hres = IPersistStorage_GetClassID(pPS, &objectClass);
1401 if (SUCCEEDED(hres))
1403 WriteClassStg(pStg, &objectClass);
1407 * Then, we ask the object to save itself to the
1408 * storage. If it is successful, we commit the storage.
1410 hres = IPersistStorage_Save(pPS, pStg, fSameAsLoad);
1412 if (SUCCEEDED(hres))
1414 IStorage_Commit(pStg,
1415 STGC_DEFAULT);
1418 return hres;
1422 /******************************************************************************
1423 * OleLockRunning [OLE32.@]
1425 HRESULT WINAPI OleLockRunning(LPUNKNOWN pUnknown, BOOL fLock, BOOL fLastUnlockCloses)
1427 IRunnableObject* runnable = NULL;
1428 HRESULT hres;
1430 TRACE("(%p,%x,%x)\n", pUnknown, fLock, fLastUnlockCloses);
1432 hres = IUnknown_QueryInterface(pUnknown,
1433 &IID_IRunnableObject,
1434 (void**)&runnable);
1436 if (SUCCEEDED(hres))
1438 hres = IRunnableObject_LockRunning(runnable, fLock, fLastUnlockCloses);
1440 IRunnableObject_Release(runnable);
1442 return hres;
1445 return S_OK;
1449 /**************************************************************************
1450 * Internal methods to manage the shared OLE menu in response to the
1451 * OLE***MenuDescriptor API
1454 /***
1455 * OLEMenu_Initialize()
1457 * Initializes the OLEMENU data structures.
1459 static void OLEMenu_Initialize(void)
1463 /***
1464 * OLEMenu_UnInitialize()
1466 * Releases the OLEMENU data structures.
1468 static void OLEMenu_UnInitialize(void)
1472 /*************************************************************************
1473 * OLEMenu_InstallHooks
1474 * Install thread scope message hooks for WH_GETMESSAGE and WH_CALLWNDPROC
1476 * RETURNS: TRUE if message hooks were successfully installed
1477 * FALSE on failure
1479 static BOOL OLEMenu_InstallHooks( DWORD tid )
1481 OleMenuHookItem *pHookItem;
1483 /* Create an entry for the hook table */
1484 if ( !(pHookItem = HeapAlloc(GetProcessHeap(), 0,
1485 sizeof(OleMenuHookItem)) ) )
1486 return FALSE;
1488 pHookItem->tid = tid;
1489 pHookItem->hHeap = GetProcessHeap();
1490 pHookItem->CallWndProc_hHook = NULL;
1492 /* Install a thread scope message hook for WH_GETMESSAGE */
1493 pHookItem->GetMsg_hHook = SetWindowsHookExW( WH_GETMESSAGE, OLEMenu_GetMsgProc,
1494 0, GetCurrentThreadId() );
1495 if ( !pHookItem->GetMsg_hHook )
1496 goto CLEANUP;
1498 /* Install a thread scope message hook for WH_CALLWNDPROC */
1499 pHookItem->CallWndProc_hHook = SetWindowsHookExW( WH_CALLWNDPROC, OLEMenu_CallWndProc,
1500 0, GetCurrentThreadId() );
1501 if ( !pHookItem->CallWndProc_hHook )
1502 goto CLEANUP;
1504 /* Insert the hook table entry */
1505 pHookItem->next = hook_list;
1506 hook_list = pHookItem;
1508 return TRUE;
1510 CLEANUP:
1511 /* Unhook any hooks */
1512 if ( pHookItem->GetMsg_hHook )
1513 UnhookWindowsHookEx( pHookItem->GetMsg_hHook );
1514 if ( pHookItem->CallWndProc_hHook )
1515 UnhookWindowsHookEx( pHookItem->CallWndProc_hHook );
1516 /* Release the hook table entry */
1517 HeapFree(pHookItem->hHeap, 0, pHookItem );
1519 return FALSE;
1522 /*************************************************************************
1523 * OLEMenu_UnInstallHooks
1524 * UnInstall thread scope message hooks for WH_GETMESSAGE and WH_CALLWNDPROC
1526 * RETURNS: TRUE if message hooks were successfully installed
1527 * FALSE on failure
1529 static BOOL OLEMenu_UnInstallHooks( DWORD tid )
1531 OleMenuHookItem *pHookItem = NULL;
1532 OleMenuHookItem **ppHook = &hook_list;
1534 while (*ppHook)
1536 if ((*ppHook)->tid == tid)
1538 pHookItem = *ppHook;
1539 *ppHook = pHookItem->next;
1540 break;
1542 ppHook = &(*ppHook)->next;
1544 if (!pHookItem) return FALSE;
1546 /* Uninstall the hooks installed for this thread */
1547 if ( !UnhookWindowsHookEx( pHookItem->GetMsg_hHook ) )
1548 goto CLEANUP;
1549 if ( !UnhookWindowsHookEx( pHookItem->CallWndProc_hHook ) )
1550 goto CLEANUP;
1552 /* Release the hook table entry */
1553 HeapFree(pHookItem->hHeap, 0, pHookItem );
1555 return TRUE;
1557 CLEANUP:
1558 /* Release the hook table entry */
1559 HeapFree(pHookItem->hHeap, 0, pHookItem );
1561 return FALSE;
1564 /*************************************************************************
1565 * OLEMenu_IsHookInstalled
1566 * Tests if OLEMenu hooks have been installed for a thread
1568 * RETURNS: The pointer and index of the hook table entry for the tid
1569 * NULL and -1 for the index if no hooks were installed for this thread
1571 static OleMenuHookItem * OLEMenu_IsHookInstalled( DWORD tid )
1573 OleMenuHookItem *pHookItem;
1575 /* Do a simple linear search for an entry whose tid matches ours.
1576 * We really need a map but efficiency is not a concern here. */
1577 for (pHookItem = hook_list; pHookItem; pHookItem = pHookItem->next)
1579 if ( tid == pHookItem->tid )
1580 return pHookItem;
1583 return NULL;
1586 /***********************************************************************
1587 * OLEMenu_FindMainMenuIndex
1589 * Used by OLEMenu API to find the top level group a menu item belongs to.
1590 * On success pnPos contains the index of the item in the top level menu group
1592 * RETURNS: TRUE if the ID was found, FALSE on failure
1594 static BOOL OLEMenu_FindMainMenuIndex( HMENU hMainMenu, HMENU hPopupMenu, UINT *pnPos )
1596 INT i, nItems;
1598 nItems = GetMenuItemCount( hMainMenu );
1600 for (i = 0; i < nItems; i++)
1602 HMENU hsubmenu;
1604 /* Is the current item a submenu? */
1605 if ( (hsubmenu = GetSubMenu(hMainMenu, i)) )
1607 /* If the handle is the same we're done */
1608 if ( hsubmenu == hPopupMenu )
1610 if (pnPos)
1611 *pnPos = i;
1612 return TRUE;
1614 /* Recursively search without updating pnPos */
1615 else if ( OLEMenu_FindMainMenuIndex( hsubmenu, hPopupMenu, NULL ) )
1617 if (pnPos)
1618 *pnPos = i;
1619 return TRUE;
1624 return FALSE;
1627 /***********************************************************************
1628 * OLEMenu_SetIsServerMenu
1630 * Checks whether a popup menu belongs to a shared menu group which is
1631 * owned by the server, and sets the menu descriptor state accordingly.
1632 * All menu messages from these groups should be routed to the server.
1634 * RETURNS: TRUE if the popup menu is part of a server owned group
1635 * FALSE if the popup menu is part of a container owned group
1637 static BOOL OLEMenu_SetIsServerMenu( HMENU hmenu, OleMenuDescriptor *pOleMenuDescriptor )
1639 UINT nPos = 0, nWidth, i;
1641 pOleMenuDescriptor->bIsServerItem = FALSE;
1643 /* Don't bother searching if the popup is the combined menu itself */
1644 if ( hmenu == pOleMenuDescriptor->hmenuCombined )
1645 return FALSE;
1647 /* Find the menu item index in the shared OLE menu that this item belongs to */
1648 if ( !OLEMenu_FindMainMenuIndex( pOleMenuDescriptor->hmenuCombined, hmenu, &nPos ) )
1649 return FALSE;
1651 /* The group widths array has counts for the number of elements
1652 * in the groups File, Edit, Container, Object, Window, Help.
1653 * The Edit, Object & Help groups belong to the server object
1654 * and the other three belong to the container.
1655 * Loop through the group widths and locate the group we are a member of.
1657 for ( i = 0, nWidth = 0; i < 6; i++ )
1659 nWidth += pOleMenuDescriptor->mgw.width[i];
1660 if ( nPos < nWidth )
1662 /* Odd elements are server menu widths */
1663 pOleMenuDescriptor->bIsServerItem = (i%2) ? TRUE : FALSE;
1664 break;
1668 return pOleMenuDescriptor->bIsServerItem;
1671 /*************************************************************************
1672 * OLEMenu_CallWndProc
1673 * Thread scope WH_CALLWNDPROC hook proc filter function (callback)
1674 * This is invoked from a message hook installed in OleSetMenuDescriptor.
1676 static LRESULT CALLBACK OLEMenu_CallWndProc(INT code, WPARAM wParam, LPARAM lParam)
1678 LPCWPSTRUCT pMsg;
1679 HOLEMENU hOleMenu = 0;
1680 OleMenuDescriptor *pOleMenuDescriptor = NULL;
1681 OleMenuHookItem *pHookItem = NULL;
1682 WORD fuFlags;
1684 TRACE("%i, %04lx, %08lx\n", code, wParam, lParam );
1686 /* Check if we're being asked to process the message */
1687 if ( HC_ACTION != code )
1688 goto NEXTHOOK;
1690 /* Retrieve the current message being dispatched from lParam */
1691 pMsg = (LPCWPSTRUCT)lParam;
1693 /* Check if the message is destined for a window we are interested in:
1694 * If the window has an OLEMenu property we may need to dispatch
1695 * the menu message to its active objects window instead. */
1697 hOleMenu = GetPropW( pMsg->hwnd, prop_olemenuW );
1698 if ( !hOleMenu )
1699 goto NEXTHOOK;
1701 /* Get the menu descriptor */
1702 pOleMenuDescriptor = GlobalLock( hOleMenu );
1703 if ( !pOleMenuDescriptor ) /* Bad descriptor! */
1704 goto NEXTHOOK;
1706 /* Process menu messages */
1707 switch( pMsg->message )
1709 case WM_INITMENU:
1711 /* Reset the menu descriptor state */
1712 pOleMenuDescriptor->bIsServerItem = FALSE;
1714 /* Send this message to the server as well */
1715 SendMessageW( pOleMenuDescriptor->hwndActiveObject,
1716 pMsg->message, pMsg->wParam, pMsg->lParam );
1717 goto NEXTHOOK;
1720 case WM_INITMENUPOPUP:
1722 /* Save the state for whether this is a server owned menu */
1723 OLEMenu_SetIsServerMenu( (HMENU)pMsg->wParam, pOleMenuDescriptor );
1724 break;
1727 case WM_MENUSELECT:
1729 fuFlags = HIWORD(pMsg->wParam); /* Get flags */
1730 if ( fuFlags & MF_SYSMENU )
1731 goto NEXTHOOK;
1733 /* Save the state for whether this is a server owned popup menu */
1734 else if ( fuFlags & MF_POPUP )
1735 OLEMenu_SetIsServerMenu( (HMENU)pMsg->lParam, pOleMenuDescriptor );
1737 break;
1740 case WM_DRAWITEM:
1742 LPDRAWITEMSTRUCT lpdis = (LPDRAWITEMSTRUCT) pMsg->lParam;
1743 if ( pMsg->wParam != 0 || lpdis->CtlType != ODT_MENU )
1744 goto NEXTHOOK; /* Not a menu message */
1746 break;
1749 default:
1750 goto NEXTHOOK;
1753 /* If the message was for the server dispatch it accordingly */
1754 if ( pOleMenuDescriptor->bIsServerItem )
1756 SendMessageW( pOleMenuDescriptor->hwndActiveObject,
1757 pMsg->message, pMsg->wParam, pMsg->lParam );
1760 NEXTHOOK:
1761 if ( pOleMenuDescriptor )
1762 GlobalUnlock( hOleMenu );
1764 /* Lookup the hook item for the current thread */
1765 if ( !( pHookItem = OLEMenu_IsHookInstalled( GetCurrentThreadId() ) ) )
1767 /* This should never fail!! */
1768 WARN("could not retrieve hHook for current thread!\n" );
1769 return 0;
1772 /* Pass on the message to the next hooker */
1773 return CallNextHookEx( pHookItem->CallWndProc_hHook, code, wParam, lParam );
1776 /*************************************************************************
1777 * OLEMenu_GetMsgProc
1778 * Thread scope WH_GETMESSAGE hook proc filter function (callback)
1779 * This is invoked from a message hook installed in OleSetMenuDescriptor.
1781 static LRESULT CALLBACK OLEMenu_GetMsgProc(INT code, WPARAM wParam, LPARAM lParam)
1783 LPMSG pMsg;
1784 HOLEMENU hOleMenu = 0;
1785 OleMenuDescriptor *pOleMenuDescriptor = NULL;
1786 OleMenuHookItem *pHookItem = NULL;
1787 WORD wCode;
1789 TRACE("%i, %04lx, %08lx\n", code, wParam, lParam );
1791 /* Check if we're being asked to process a messages */
1792 if ( HC_ACTION != code )
1793 goto NEXTHOOK;
1795 /* Retrieve the current message being dispatched from lParam */
1796 pMsg = (LPMSG)lParam;
1798 /* Check if the message is destined for a window we are interested in:
1799 * If the window has an OLEMenu property we may need to dispatch
1800 * the menu message to its active objects window instead. */
1802 hOleMenu = GetPropW( pMsg->hwnd, prop_olemenuW );
1803 if ( !hOleMenu )
1804 goto NEXTHOOK;
1806 /* Process menu messages */
1807 switch( pMsg->message )
1809 case WM_COMMAND:
1811 wCode = HIWORD(pMsg->wParam); /* Get notification code */
1812 if ( wCode )
1813 goto NEXTHOOK; /* Not a menu message */
1814 break;
1816 default:
1817 goto NEXTHOOK;
1820 /* Get the menu descriptor */
1821 pOleMenuDescriptor = GlobalLock( hOleMenu );
1822 if ( !pOleMenuDescriptor ) /* Bad descriptor! */
1823 goto NEXTHOOK;
1825 /* If the message was for the server dispatch it accordingly */
1826 if ( pOleMenuDescriptor->bIsServerItem )
1828 /* Change the hWnd in the message to the active objects hWnd.
1829 * The message loop which reads this message will automatically
1830 * dispatch it to the embedded objects window. */
1831 pMsg->hwnd = pOleMenuDescriptor->hwndActiveObject;
1834 NEXTHOOK:
1835 if ( pOleMenuDescriptor )
1836 GlobalUnlock( hOleMenu );
1838 /* Lookup the hook item for the current thread */
1839 if ( !( pHookItem = OLEMenu_IsHookInstalled( GetCurrentThreadId() ) ) )
1841 /* This should never fail!! */
1842 WARN("could not retrieve hHook for current thread!\n" );
1843 return FALSE;
1846 /* Pass on the message to the next hooker */
1847 return CallNextHookEx( pHookItem->GetMsg_hHook, code, wParam, lParam );
1850 /***********************************************************************
1851 * OleCreateMenuDescriptor [OLE32.@]
1852 * Creates an OLE menu descriptor for OLE to use when dispatching
1853 * menu messages and commands.
1855 * PARAMS:
1856 * hmenuCombined - Handle to the objects combined menu
1857 * lpMenuWidths - Pointer to array of 6 LONG's indicating menus per group
1860 HOLEMENU WINAPI OleCreateMenuDescriptor(
1861 HMENU hmenuCombined,
1862 LPOLEMENUGROUPWIDTHS lpMenuWidths)
1864 HOLEMENU hOleMenu;
1865 OleMenuDescriptor *pOleMenuDescriptor;
1866 int i;
1868 if ( !hmenuCombined || !lpMenuWidths )
1869 return 0;
1871 /* Create an OLE menu descriptor */
1872 if ( !(hOleMenu = GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT,
1873 sizeof(OleMenuDescriptor) ) ) )
1874 return 0;
1876 pOleMenuDescriptor = GlobalLock( hOleMenu );
1877 if ( !pOleMenuDescriptor )
1878 return 0;
1880 /* Initialize menu group widths and hmenu */
1881 for ( i = 0; i < 6; i++ )
1882 pOleMenuDescriptor->mgw.width[i] = lpMenuWidths->width[i];
1884 pOleMenuDescriptor->hmenuCombined = hmenuCombined;
1885 pOleMenuDescriptor->bIsServerItem = FALSE;
1886 GlobalUnlock( hOleMenu );
1888 return hOleMenu;
1891 /***********************************************************************
1892 * OleDestroyMenuDescriptor [OLE32.@]
1893 * Destroy the shared menu descriptor
1895 HRESULT WINAPI OleDestroyMenuDescriptor(
1896 HOLEMENU hmenuDescriptor)
1898 if ( hmenuDescriptor )
1899 GlobalFree( hmenuDescriptor );
1900 return S_OK;
1903 /***********************************************************************
1904 * OleSetMenuDescriptor [OLE32.@]
1905 * Installs or removes OLE dispatching code for the containers frame window.
1907 * PARAMS
1908 * hOleMenu Handle to composite menu descriptor
1909 * hwndFrame Handle to containers frame window
1910 * hwndActiveObject Handle to objects in-place activation window
1911 * lpFrame Pointer to IOleInPlaceFrame on containers window
1912 * lpActiveObject Pointer to IOleInPlaceActiveObject on active in-place object
1914 * RETURNS
1915 * S_OK - menu installed correctly
1916 * E_FAIL, E_INVALIDARG, E_UNEXPECTED - failure
1918 * FIXME
1919 * The lpFrame and lpActiveObject parameters are currently ignored
1920 * OLE should install context sensitive help F1 filtering for the app when
1921 * these are non null.
1923 HRESULT WINAPI OleSetMenuDescriptor(
1924 HOLEMENU hOleMenu,
1925 HWND hwndFrame,
1926 HWND hwndActiveObject,
1927 LPOLEINPLACEFRAME lpFrame,
1928 LPOLEINPLACEACTIVEOBJECT lpActiveObject)
1930 OleMenuDescriptor *pOleMenuDescriptor = NULL;
1932 /* Check args */
1933 if ( !hwndFrame || (hOleMenu && !hwndActiveObject) )
1934 return E_INVALIDARG;
1936 if ( lpFrame || lpActiveObject )
1938 FIXME("(%p, %p, %p, %p, %p), Context sensitive help filtering not implemented!\n",
1939 hOleMenu,
1940 hwndFrame,
1941 hwndActiveObject,
1942 lpFrame,
1943 lpActiveObject);
1946 /* Set up a message hook to intercept the containers frame window messages.
1947 * The message filter is responsible for dispatching menu messages from the
1948 * shared menu which are intended for the object.
1951 if ( hOleMenu ) /* Want to install dispatching code */
1953 /* If OLEMenu hooks are already installed for this thread, fail
1954 * Note: This effectively means that OleSetMenuDescriptor cannot
1955 * be called twice in succession on the same frame window
1956 * without first calling it with a null hOleMenu to uninstall */
1957 if ( OLEMenu_IsHookInstalled( GetCurrentThreadId() ) )
1958 return E_FAIL;
1960 /* Get the menu descriptor */
1961 pOleMenuDescriptor = GlobalLock( hOleMenu );
1962 if ( !pOleMenuDescriptor )
1963 return E_UNEXPECTED;
1965 /* Update the menu descriptor */
1966 pOleMenuDescriptor->hwndFrame = hwndFrame;
1967 pOleMenuDescriptor->hwndActiveObject = hwndActiveObject;
1969 GlobalUnlock( hOleMenu );
1970 pOleMenuDescriptor = NULL;
1972 /* Add a menu descriptor windows property to the frame window */
1973 SetPropW( hwndFrame, prop_olemenuW, hOleMenu );
1975 /* Install thread scope message hooks for WH_GETMESSAGE and WH_CALLWNDPROC */
1976 if ( !OLEMenu_InstallHooks( GetCurrentThreadId() ) )
1977 return E_FAIL;
1979 else /* Want to uninstall dispatching code */
1981 /* Uninstall the hooks */
1982 if ( !OLEMenu_UnInstallHooks( GetCurrentThreadId() ) )
1983 return E_FAIL;
1985 /* Remove the menu descriptor property from the frame window */
1986 RemovePropW( hwndFrame, prop_olemenuW );
1989 return S_OK;
1992 /******************************************************************************
1993 * IsAccelerator [OLE32.@]
1994 * Mostly copied from controls/menu.c TranslateAccelerator implementation
1996 BOOL WINAPI IsAccelerator(HACCEL hAccel, int cAccelEntries, LPMSG lpMsg, WORD* lpwCmd)
1998 LPACCEL lpAccelTbl;
1999 int i;
2001 if(!lpMsg) return FALSE;
2002 if (!hAccel)
2004 WARN_(accel)("NULL accel handle\n");
2005 return FALSE;
2007 if((lpMsg->message != WM_KEYDOWN &&
2008 lpMsg->message != WM_SYSKEYDOWN &&
2009 lpMsg->message != WM_SYSCHAR &&
2010 lpMsg->message != WM_CHAR)) return FALSE;
2011 lpAccelTbl = HeapAlloc(GetProcessHeap(), 0, cAccelEntries * sizeof(ACCEL));
2012 if (NULL == lpAccelTbl)
2014 return FALSE;
2016 if (CopyAcceleratorTableW(hAccel, lpAccelTbl, cAccelEntries) != cAccelEntries)
2018 WARN_(accel)("CopyAcceleratorTableW failed\n");
2019 HeapFree(GetProcessHeap(), 0, lpAccelTbl);
2020 return FALSE;
2023 TRACE_(accel)("hAccel=%p, cAccelEntries=%d,"
2024 "msg->hwnd=%p, msg->message=%04x, wParam=%08lx, lParam=%08lx\n",
2025 hAccel, cAccelEntries,
2026 lpMsg->hwnd, lpMsg->message, lpMsg->wParam, lpMsg->lParam);
2027 for(i = 0; i < cAccelEntries; i++)
2029 if(lpAccelTbl[i].key != lpMsg->wParam)
2030 continue;
2032 if(lpMsg->message == WM_CHAR)
2034 if(!(lpAccelTbl[i].fVirt & FALT) && !(lpAccelTbl[i].fVirt & FVIRTKEY))
2036 TRACE_(accel)("found accel for WM_CHAR: ('%c')\n", LOWORD(lpMsg->wParam) & 0xff);
2037 goto found;
2040 else
2042 if(lpAccelTbl[i].fVirt & FVIRTKEY)
2044 INT mask = 0;
2045 TRACE_(accel)("found accel for virt_key %04lx (scan %04x)\n",
2046 lpMsg->wParam, HIWORD(lpMsg->lParam) & 0xff);
2047 if(GetKeyState(VK_SHIFT) & 0x8000) mask |= FSHIFT;
2048 if(GetKeyState(VK_CONTROL) & 0x8000) mask |= FCONTROL;
2049 if(GetKeyState(VK_MENU) & 0x8000) mask |= FALT;
2050 if(mask == (lpAccelTbl[i].fVirt & (FSHIFT | FCONTROL | FALT))) goto found;
2051 TRACE_(accel)("incorrect SHIFT/CTRL/ALT-state\n");
2053 else
2055 if(!(lpMsg->lParam & 0x01000000)) /* no special_key */
2057 if((lpAccelTbl[i].fVirt & FALT) && (lpMsg->lParam & 0x20000000))
2058 { /* ^^ ALT pressed */
2059 TRACE_(accel)("found accel for Alt-%c\n", LOWORD(lpMsg->wParam) & 0xff);
2060 goto found;
2067 WARN_(accel)("couldn't translate accelerator key\n");
2068 HeapFree(GetProcessHeap(), 0, lpAccelTbl);
2069 return FALSE;
2071 found:
2072 if(lpwCmd) *lpwCmd = lpAccelTbl[i].cmd;
2073 HeapFree(GetProcessHeap(), 0, lpAccelTbl);
2074 return TRUE;
2077 /***********************************************************************
2078 * ReleaseStgMedium [OLE32.@]
2080 void WINAPI ReleaseStgMedium(
2081 STGMEDIUM* pmedium)
2083 switch (pmedium->tymed)
2085 case TYMED_HGLOBAL:
2087 if ( (pmedium->pUnkForRelease==0) &&
2088 (pmedium->u.hGlobal!=0) )
2089 GlobalFree(pmedium->u.hGlobal);
2090 break;
2092 case TYMED_FILE:
2094 if (pmedium->u.lpszFileName!=0)
2096 if (pmedium->pUnkForRelease==0)
2098 DeleteFileW(pmedium->u.lpszFileName);
2101 CoTaskMemFree(pmedium->u.lpszFileName);
2103 break;
2105 case TYMED_ISTREAM:
2107 if (pmedium->u.pstm!=0)
2109 IStream_Release(pmedium->u.pstm);
2111 break;
2113 case TYMED_ISTORAGE:
2115 if (pmedium->u.pstg!=0)
2117 IStorage_Release(pmedium->u.pstg);
2119 break;
2121 case TYMED_GDI:
2123 if ( (pmedium->pUnkForRelease==0) &&
2124 (pmedium->u.hBitmap!=0) )
2125 DeleteObject(pmedium->u.hBitmap);
2126 break;
2128 case TYMED_MFPICT:
2130 if ( (pmedium->pUnkForRelease==0) &&
2131 (pmedium->u.hMetaFilePict!=0) )
2133 LPMETAFILEPICT pMP = GlobalLock(pmedium->u.hMetaFilePict);
2134 DeleteMetaFile(pMP->hMF);
2135 GlobalUnlock(pmedium->u.hMetaFilePict);
2136 GlobalFree(pmedium->u.hMetaFilePict);
2138 break;
2140 case TYMED_ENHMF:
2142 if ( (pmedium->pUnkForRelease==0) &&
2143 (pmedium->u.hEnhMetaFile!=0) )
2145 DeleteEnhMetaFile(pmedium->u.hEnhMetaFile);
2147 break;
2149 case TYMED_NULL:
2150 default:
2151 break;
2153 pmedium->tymed=TYMED_NULL;
2156 * After cleaning up, the unknown is released
2158 if (pmedium->pUnkForRelease!=0)
2160 IUnknown_Release(pmedium->pUnkForRelease);
2161 pmedium->pUnkForRelease = 0;
2165 /***
2166 * OLEDD_Initialize()
2168 * Initializes the OLE drag and drop data structures.
2170 static void OLEDD_Initialize(void)
2172 WNDCLASSW wndClass;
2174 ZeroMemory (&wndClass, sizeof(WNDCLASSW));
2175 wndClass.style = CS_GLOBALCLASS;
2176 wndClass.lpfnWndProc = OLEDD_DragTrackerWindowProc;
2177 wndClass.cbClsExtra = 0;
2178 wndClass.cbWndExtra = sizeof(TrackerWindowInfo*);
2179 wndClass.hCursor = 0;
2180 wndClass.hbrBackground = 0;
2181 wndClass.lpszClassName = OLEDD_DRAGTRACKERCLASS;
2183 RegisterClassW (&wndClass);
2186 /***
2187 * OLEDD_DragTrackerWindowProc()
2189 * This method is the WindowProcedure of the drag n drop tracking
2190 * window. During a drag n Drop operation, an invisible window is created
2191 * to receive the user input and act upon it. This procedure is in charge
2192 * of this behavior.
2195 #define DRAG_TIMER_ID 1
2197 static LRESULT WINAPI OLEDD_DragTrackerWindowProc(
2198 HWND hwnd,
2199 UINT uMsg,
2200 WPARAM wParam,
2201 LPARAM lParam)
2203 switch (uMsg)
2205 case WM_CREATE:
2207 LPCREATESTRUCTA createStruct = (LPCREATESTRUCTA)lParam;
2209 SetWindowLongPtrW(hwnd, 0, (LONG_PTR)createStruct->lpCreateParams);
2210 SetTimer(hwnd, DRAG_TIMER_ID, 50, NULL);
2212 break;
2214 case WM_TIMER:
2215 case WM_MOUSEMOVE:
2217 OLEDD_TrackMouseMove((TrackerWindowInfo*)GetWindowLongPtrA(hwnd, 0));
2218 break;
2220 case WM_LBUTTONUP:
2221 case WM_MBUTTONUP:
2222 case WM_RBUTTONUP:
2223 case WM_LBUTTONDOWN:
2224 case WM_MBUTTONDOWN:
2225 case WM_RBUTTONDOWN:
2227 OLEDD_TrackStateChange((TrackerWindowInfo*)GetWindowLongPtrA(hwnd, 0));
2228 break;
2230 case WM_DESTROY:
2232 KillTimer(hwnd, DRAG_TIMER_ID);
2233 break;
2238 * This is a window proc after all. Let's call the default.
2240 return DefWindowProcW (hwnd, uMsg, wParam, lParam);
2243 /***
2244 * OLEDD_TrackMouseMove()
2246 * This method is invoked while a drag and drop operation is in effect.
2247 * it will generate the appropriate callbacks in the drop source
2248 * and drop target. It will also provide the expected feedback to
2249 * the user.
2251 * params:
2252 * trackerInfo - Pointer to the structure identifying the
2253 * drag & drop operation that is currently
2254 * active.
2256 static void OLEDD_TrackMouseMove(TrackerWindowInfo* trackerInfo)
2258 HWND hwndNewTarget = 0;
2259 HRESULT hr = S_OK;
2260 POINT pt;
2263 * Get the handle of the window under the mouse
2265 pt.x = trackerInfo->curMousePos.x;
2266 pt.y = trackerInfo->curMousePos.y;
2267 hwndNewTarget = WindowFromPoint(pt);
2270 * Every time, we re-initialize the effects passed to the
2271 * IDropTarget to the effects allowed by the source.
2273 *trackerInfo->pdwEffect = trackerInfo->dwOKEffect;
2276 * If we are hovering over the same target as before, send the
2277 * DragOver notification
2279 if ( (trackerInfo->curDragTarget != 0) &&
2280 (trackerInfo->curTargetHWND == hwndNewTarget) )
2282 IDropTarget_DragOver(trackerInfo->curDragTarget,
2283 trackerInfo->dwKeyState,
2284 trackerInfo->curMousePos,
2285 trackerInfo->pdwEffect);
2287 else
2290 * If we changed window, we have to notify our old target and check for
2291 * the new one.
2293 if (trackerInfo->curDragTarget)
2294 IDropTarget_DragLeave(trackerInfo->curDragTarget);
2297 * Make sure we're hovering over a window.
2299 if (hwndNewTarget)
2302 * Find-out if there is a drag target under the mouse
2304 HWND next_target_wnd = hwndNewTarget;
2306 trackerInfo->curTargetHWND = hwndNewTarget;
2308 while (next_target_wnd && !is_droptarget(next_target_wnd))
2309 next_target_wnd = GetParent(next_target_wnd);
2311 if (next_target_wnd) hwndNewTarget = next_target_wnd;
2313 trackerInfo->curDragTargetHWND = hwndNewTarget;
2314 if(trackerInfo->curDragTarget) IDropTarget_Release(trackerInfo->curDragTarget);
2315 trackerInfo->curDragTarget = get_droptarget_pointer(hwndNewTarget);
2318 * If there is, notify it that we just dragged-in
2320 if (trackerInfo->curDragTarget)
2322 hr = IDropTarget_DragEnter(trackerInfo->curDragTarget,
2323 trackerInfo->dataObject,
2324 trackerInfo->dwKeyState,
2325 trackerInfo->curMousePos,
2326 trackerInfo->pdwEffect);
2328 /* failed DragEnter() means invalid target */
2329 if (hr != S_OK)
2331 trackerInfo->curDragTargetHWND = 0;
2332 trackerInfo->curTargetHWND = 0;
2333 IDropTarget_Release(trackerInfo->curDragTarget);
2334 trackerInfo->curDragTarget = 0;
2338 else
2341 * The mouse is not over a window so we don't track anything.
2343 trackerInfo->curDragTargetHWND = 0;
2344 trackerInfo->curTargetHWND = 0;
2345 if(trackerInfo->curDragTarget) IDropTarget_Release(trackerInfo->curDragTarget);
2346 trackerInfo->curDragTarget = 0;
2351 * Now that we have done that, we have to tell the source to give
2352 * us feedback on the work being done by the target. If we don't
2353 * have a target, simulate no effect.
2355 if (trackerInfo->curDragTarget==0)
2357 *trackerInfo->pdwEffect = DROPEFFECT_NONE;
2360 hr = IDropSource_GiveFeedback(trackerInfo->dropSource,
2361 *trackerInfo->pdwEffect);
2364 * When we ask for feedback from the drop source, sometimes it will
2365 * do all the necessary work and sometimes it will not handle it
2366 * when that's the case, we must display the standard drag and drop
2367 * cursors.
2369 if (hr == DRAGDROP_S_USEDEFAULTCURSORS)
2371 HCURSOR hCur;
2373 if (*trackerInfo->pdwEffect & DROPEFFECT_MOVE)
2375 hCur = LoadCursorW(hProxyDll, MAKEINTRESOURCEW(2));
2377 else if (*trackerInfo->pdwEffect & DROPEFFECT_COPY)
2379 hCur = LoadCursorW(hProxyDll, MAKEINTRESOURCEW(3));
2381 else if (*trackerInfo->pdwEffect & DROPEFFECT_LINK)
2383 hCur = LoadCursorW(hProxyDll, MAKEINTRESOURCEW(4));
2385 else
2387 hCur = LoadCursorW(hProxyDll, MAKEINTRESOURCEW(1));
2390 SetCursor(hCur);
2394 /***
2395 * OLEDD_TrackStateChange()
2397 * This method is invoked while a drag and drop operation is in effect.
2398 * It is used to notify the drop target/drop source callbacks when
2399 * the state of the keyboard or mouse button change.
2401 * params:
2402 * trackerInfo - Pointer to the structure identifying the
2403 * drag & drop operation that is currently
2404 * active.
2406 static void OLEDD_TrackStateChange(TrackerWindowInfo* trackerInfo)
2409 * Ask the drop source what to do with the operation.
2411 trackerInfo->returnValue = IDropSource_QueryContinueDrag(
2412 trackerInfo->dropSource,
2413 trackerInfo->escPressed,
2414 trackerInfo->dwKeyState);
2417 * All the return valued will stop the operation except the S_OK
2418 * return value.
2420 if (trackerInfo->returnValue!=S_OK)
2423 * Make sure the message loop in DoDragDrop stops
2425 trackerInfo->trackingDone = TRUE;
2428 * Release the mouse in case the drop target decides to show a popup
2429 * or a menu or something.
2431 ReleaseCapture();
2434 * If we end-up over a target, drop the object in the target or
2435 * inform the target that the operation was cancelled.
2437 if (trackerInfo->curDragTarget)
2439 switch (trackerInfo->returnValue)
2442 * If the source wants us to complete the operation, we tell
2443 * the drop target that we just dropped the object in it.
2445 case DRAGDROP_S_DROP:
2446 if (*trackerInfo->pdwEffect != DROPEFFECT_NONE)
2447 IDropTarget_Drop(trackerInfo->curDragTarget,
2448 trackerInfo->dataObject,
2449 trackerInfo->dwKeyState,
2450 trackerInfo->curMousePos,
2451 trackerInfo->pdwEffect);
2452 else
2453 IDropTarget_DragLeave(trackerInfo->curDragTarget);
2454 break;
2457 * If the source told us that we should cancel, fool the drop
2458 * target by telling it that the mouse left it's window.
2459 * Also set the drop effect to "NONE" in case the application
2460 * ignores the result of DoDragDrop.
2462 case DRAGDROP_S_CANCEL:
2463 IDropTarget_DragLeave(trackerInfo->curDragTarget);
2464 *trackerInfo->pdwEffect = DROPEFFECT_NONE;
2465 break;
2471 /***
2472 * OLEDD_GetButtonState()
2474 * This method will use the current state of the keyboard to build
2475 * a button state mask equivalent to the one passed in the
2476 * WM_MOUSEMOVE wParam.
2478 static DWORD OLEDD_GetButtonState(void)
2480 BYTE keyboardState[256];
2481 DWORD keyMask = 0;
2483 GetKeyboardState(keyboardState);
2485 if ( (keyboardState[VK_SHIFT] & 0x80) !=0)
2486 keyMask |= MK_SHIFT;
2488 if ( (keyboardState[VK_CONTROL] & 0x80) !=0)
2489 keyMask |= MK_CONTROL;
2491 if ( (keyboardState[VK_LBUTTON] & 0x80) !=0)
2492 keyMask |= MK_LBUTTON;
2494 if ( (keyboardState[VK_RBUTTON] & 0x80) !=0)
2495 keyMask |= MK_RBUTTON;
2497 if ( (keyboardState[VK_MBUTTON] & 0x80) !=0)
2498 keyMask |= MK_MBUTTON;
2500 return keyMask;
2503 /***
2504 * OLEDD_GetButtonState()
2506 * This method will read the default value of the registry key in
2507 * parameter and extract a DWORD value from it. The registry key value
2508 * can be in a string key or a DWORD key.
2510 * params:
2511 * regKey - Key to read the default value from
2512 * pdwValue - Pointer to the location where the DWORD
2513 * value is returned. This value is not modified
2514 * if the value is not found.
2517 static void OLEUTL_ReadRegistryDWORDValue(
2518 HKEY regKey,
2519 DWORD* pdwValue)
2521 WCHAR buffer[20];
2522 DWORD cbData = sizeof(buffer);
2523 DWORD dwKeyType;
2524 LONG lres;
2526 lres = RegQueryValueExW(regKey,
2527 emptyW,
2528 NULL,
2529 &dwKeyType,
2530 (LPBYTE)buffer,
2531 &cbData);
2533 if (lres==ERROR_SUCCESS)
2535 switch (dwKeyType)
2537 case REG_DWORD:
2538 *pdwValue = *(DWORD*)buffer;
2539 break;
2540 case REG_EXPAND_SZ:
2541 case REG_MULTI_SZ:
2542 case REG_SZ:
2543 *pdwValue = (DWORD)strtoulW(buffer, NULL, 10);
2544 break;
2549 /******************************************************************************
2550 * OleDraw (OLE32.@)
2552 * The operation of this function is documented literally in the WinAPI
2553 * documentation to involve a QueryInterface for the IViewObject interface,
2554 * followed by a call to IViewObject::Draw.
2556 HRESULT WINAPI OleDraw(
2557 IUnknown *pUnk,
2558 DWORD dwAspect,
2559 HDC hdcDraw,
2560 LPCRECT lprcBounds)
2562 HRESULT hres;
2563 IViewObject *viewobject;
2565 hres = IUnknown_QueryInterface(pUnk,
2566 &IID_IViewObject,
2567 (void**)&viewobject);
2569 if (SUCCEEDED(hres))
2571 RECTL rectl;
2573 rectl.left = lprcBounds->left;
2574 rectl.right = lprcBounds->right;
2575 rectl.top = lprcBounds->top;
2576 rectl.bottom = lprcBounds->bottom;
2577 hres = IViewObject_Draw(viewobject, dwAspect, -1, 0, 0, 0, hdcDraw, &rectl, 0, 0, 0);
2579 IViewObject_Release(viewobject);
2580 return hres;
2582 else
2584 return DV_E_NOIVIEWOBJECT;
2588 /***********************************************************************
2589 * OleTranslateAccelerator [OLE32.@]
2591 HRESULT WINAPI OleTranslateAccelerator (LPOLEINPLACEFRAME lpFrame,
2592 LPOLEINPLACEFRAMEINFO lpFrameInfo, LPMSG lpmsg)
2594 WORD wID;
2596 TRACE("(%p,%p,%p)\n", lpFrame, lpFrameInfo, lpmsg);
2598 if (IsAccelerator(lpFrameInfo->haccel,lpFrameInfo->cAccelEntries,lpmsg,&wID))
2599 return IOleInPlaceFrame_TranslateAccelerator(lpFrame,lpmsg,wID);
2601 return S_FALSE;
2604 /******************************************************************************
2605 * OleCreate [OLE32.@]
2608 HRESULT WINAPI OleCreate(
2609 REFCLSID rclsid,
2610 REFIID riid,
2611 DWORD renderopt,
2612 LPFORMATETC pFormatEtc,
2613 LPOLECLIENTSITE pClientSite,
2614 LPSTORAGE pStg,
2615 LPVOID* ppvObj)
2617 HRESULT hres;
2618 IUnknown * pUnk = NULL;
2619 IOleObject *pOleObject = NULL;
2621 TRACE("(%s, %s, %d, %p, %p, %p, %p)\n", debugstr_guid(rclsid),
2622 debugstr_guid(riid), renderopt, pFormatEtc, pClientSite, pStg, ppvObj);
2624 hres = CoCreateInstance(rclsid, 0, CLSCTX_INPROC_SERVER|CLSCTX_INPROC_HANDLER, riid, (LPVOID*)&pUnk);
2626 if (SUCCEEDED(hres))
2627 hres = IStorage_SetClass(pStg, rclsid);
2629 if (pClientSite && SUCCEEDED(hres))
2631 hres = IUnknown_QueryInterface(pUnk, &IID_IOleObject, (LPVOID*)&pOleObject);
2632 if (SUCCEEDED(hres))
2634 DWORD dwStatus;
2635 hres = IOleObject_GetMiscStatus(pOleObject, DVASPECT_CONTENT, &dwStatus);
2639 if (SUCCEEDED(hres))
2641 IPersistStorage * pPS;
2642 if (SUCCEEDED((hres = IUnknown_QueryInterface(pUnk, &IID_IPersistStorage, (LPVOID*)&pPS))))
2644 TRACE("trying to set stg %p\n", pStg);
2645 hres = IPersistStorage_InitNew(pPS, pStg);
2646 TRACE("-- result 0x%08x\n", hres);
2647 IPersistStorage_Release(pPS);
2651 if (pClientSite && SUCCEEDED(hres))
2653 TRACE("trying to set clientsite %p\n", pClientSite);
2654 hres = IOleObject_SetClientSite(pOleObject, pClientSite);
2655 TRACE("-- result 0x%08x\n", hres);
2658 if (pOleObject)
2659 IOleObject_Release(pOleObject);
2661 if (((renderopt == OLERENDER_DRAW) || (renderopt == OLERENDER_FORMAT)) &&
2662 SUCCEEDED(hres))
2664 IRunnableObject *pRunnable;
2665 IOleCache *pOleCache;
2666 HRESULT hres2;
2668 hres2 = IUnknown_QueryInterface(pUnk, &IID_IRunnableObject, (void **)&pRunnable);
2669 if (SUCCEEDED(hres2))
2671 hres = IRunnableObject_Run(pRunnable, NULL);
2672 IRunnableObject_Release(pRunnable);
2675 if (SUCCEEDED(hres))
2677 hres2 = IUnknown_QueryInterface(pUnk, &IID_IOleCache, (void **)&pOleCache);
2678 if (SUCCEEDED(hres2))
2680 DWORD dwConnection;
2681 if (renderopt == OLERENDER_DRAW && !pFormatEtc) {
2682 FORMATETC pfe;
2683 pfe.cfFormat = 0;
2684 pfe.ptd = NULL;
2685 pfe.dwAspect = DVASPECT_CONTENT;
2686 pfe.lindex = -1;
2687 pfe.tymed = TYMED_NULL;
2688 hres = IOleCache_Cache(pOleCache, &pfe, ADVF_PRIMEFIRST, &dwConnection);
2690 else
2691 hres = IOleCache_Cache(pOleCache, pFormatEtc, ADVF_PRIMEFIRST, &dwConnection);
2692 IOleCache_Release(pOleCache);
2697 if (FAILED(hres) && pUnk)
2699 IUnknown_Release(pUnk);
2700 pUnk = NULL;
2703 *ppvObj = pUnk;
2705 TRACE("-- %p\n", pUnk);
2706 return hres;
2709 /******************************************************************************
2710 * OleGetAutoConvert [OLE32.@]
2712 HRESULT WINAPI OleGetAutoConvert(REFCLSID clsidOld, LPCLSID pClsidNew)
2714 static const WCHAR wszAutoConvertTo[] = {'A','u','t','o','C','o','n','v','e','r','t','T','o',0};
2715 HKEY hkey = NULL;
2716 WCHAR buf[CHARS_IN_GUID];
2717 LONG len;
2718 HRESULT res = S_OK;
2720 res = COM_OpenKeyForCLSID(clsidOld, wszAutoConvertTo, KEY_READ, &hkey);
2721 if (FAILED(res))
2722 goto done;
2724 len = sizeof(buf);
2725 if (RegQueryValueW(hkey, NULL, buf, &len))
2727 res = REGDB_E_KEYMISSING;
2728 goto done;
2730 res = CLSIDFromString(buf, pClsidNew);
2731 done:
2732 if (hkey) RegCloseKey(hkey);
2733 return res;
2736 /******************************************************************************
2737 * OleSetAutoConvert [OLE32.@]
2739 HRESULT WINAPI OleSetAutoConvert(REFCLSID clsidOld, REFCLSID clsidNew)
2741 static const WCHAR wszAutoConvertTo[] = {'A','u','t','o','C','o','n','v','e','r','t','T','o',0};
2742 HKEY hkey = NULL;
2743 WCHAR szClsidNew[CHARS_IN_GUID];
2744 HRESULT res = S_OK;
2746 TRACE("(%s,%s)\n", debugstr_guid(clsidOld), debugstr_guid(clsidNew));
2748 res = COM_OpenKeyForCLSID(clsidOld, NULL, KEY_READ | KEY_WRITE, &hkey);
2749 if (FAILED(res))
2750 goto done;
2751 StringFromGUID2(clsidNew, szClsidNew, CHARS_IN_GUID);
2752 if (RegSetValueW(hkey, wszAutoConvertTo, REG_SZ, szClsidNew, (strlenW(szClsidNew)+1) * sizeof(WCHAR)))
2754 res = REGDB_E_WRITEREGDB;
2755 goto done;
2758 done:
2759 if (hkey) RegCloseKey(hkey);
2760 return res;
2763 /******************************************************************************
2764 * OleDoAutoConvert [OLE32.@]
2766 HRESULT WINAPI OleDoAutoConvert(LPSTORAGE pStg, LPCLSID pClsidNew)
2768 FIXME("(%p,%p) : stub\n",pStg,pClsidNew);
2769 return E_NOTIMPL;
2772 /******************************************************************************
2773 * OleIsRunning [OLE32.@]
2775 BOOL WINAPI OleIsRunning(LPOLEOBJECT object)
2777 IRunnableObject *pRunnable;
2778 HRESULT hr;
2779 BOOL running;
2781 TRACE("(%p)\n", object);
2783 if (!object) return FALSE;
2785 hr = IOleObject_QueryInterface(object, &IID_IRunnableObject, (void **)&pRunnable);
2786 if (FAILED(hr))
2787 return TRUE;
2788 running = IRunnableObject_IsRunning(pRunnable);
2789 IRunnableObject_Release(pRunnable);
2790 return running;
2793 /***********************************************************************
2794 * OleNoteObjectVisible [OLE32.@]
2796 HRESULT WINAPI OleNoteObjectVisible(LPUNKNOWN pUnknown, BOOL bVisible)
2798 TRACE("(%p, %s)\n", pUnknown, bVisible ? "TRUE" : "FALSE");
2799 return CoLockObjectExternal(pUnknown, bVisible, TRUE);
2803 /***********************************************************************
2804 * OLE_FreeClipDataArray [internal]
2806 * NOTES:
2807 * frees the data associated with an array of CLIPDATAs
2809 static void OLE_FreeClipDataArray(ULONG count, CLIPDATA * pClipDataArray)
2811 ULONG i;
2812 for (i = 0; i < count; i++)
2813 if (pClipDataArray[i].pClipData)
2814 CoTaskMemFree(pClipDataArray[i].pClipData);
2817 /***********************************************************************
2818 * PropSysAllocString [OLE32.@]
2819 * NOTES
2820 * Forward to oleaut32.
2822 BSTR WINAPI PropSysAllocString(LPCOLESTR str)
2824 return SysAllocString(str);
2827 /***********************************************************************
2828 * PropSysFreeString [OLE32.@]
2829 * NOTES
2830 * Forward to oleaut32.
2832 void WINAPI PropSysFreeString(LPOLESTR str)
2834 SysFreeString(str);
2837 /******************************************************************************
2838 * Check if a PROPVARIANT's type is valid.
2840 static inline HRESULT PROPVARIANT_ValidateType(VARTYPE vt)
2842 switch (vt)
2844 case VT_EMPTY:
2845 case VT_NULL:
2846 case VT_I1:
2847 case VT_I2:
2848 case VT_I4:
2849 case VT_I8:
2850 case VT_R4:
2851 case VT_R8:
2852 case VT_CY:
2853 case VT_DATE:
2854 case VT_BSTR:
2855 case VT_ERROR:
2856 case VT_BOOL:
2857 case VT_DECIMAL:
2858 case VT_UI1:
2859 case VT_UI2:
2860 case VT_UI4:
2861 case VT_UI8:
2862 case VT_LPSTR:
2863 case VT_LPWSTR:
2864 case VT_FILETIME:
2865 case VT_BLOB:
2866 case VT_STREAM:
2867 case VT_STORAGE:
2868 case VT_STREAMED_OBJECT:
2869 case VT_STORED_OBJECT:
2870 case VT_BLOB_OBJECT:
2871 case VT_CF:
2872 case VT_CLSID:
2873 case VT_I1|VT_VECTOR:
2874 case VT_I2|VT_VECTOR:
2875 case VT_I4|VT_VECTOR:
2876 case VT_I8|VT_VECTOR:
2877 case VT_R4|VT_VECTOR:
2878 case VT_R8|VT_VECTOR:
2879 case VT_CY|VT_VECTOR:
2880 case VT_DATE|VT_VECTOR:
2881 case VT_BSTR|VT_VECTOR:
2882 case VT_ERROR|VT_VECTOR:
2883 case VT_BOOL|VT_VECTOR:
2884 case VT_VARIANT|VT_VECTOR:
2885 case VT_UI1|VT_VECTOR:
2886 case VT_UI2|VT_VECTOR:
2887 case VT_UI4|VT_VECTOR:
2888 case VT_UI8|VT_VECTOR:
2889 case VT_LPSTR|VT_VECTOR:
2890 case VT_LPWSTR|VT_VECTOR:
2891 case VT_FILETIME|VT_VECTOR:
2892 case VT_CF|VT_VECTOR:
2893 case VT_CLSID|VT_VECTOR:
2894 return S_OK;
2896 WARN("Bad type %d\n", vt);
2897 return STG_E_INVALIDPARAMETER;
2900 /***********************************************************************
2901 * PropVariantClear [OLE32.@]
2903 HRESULT WINAPI PropVariantClear(PROPVARIANT * pvar) /* [in/out] */
2905 HRESULT hr;
2907 TRACE("(%p)\n", pvar);
2909 if (!pvar)
2910 return S_OK;
2912 hr = PROPVARIANT_ValidateType(pvar->vt);
2913 if (FAILED(hr))
2914 return hr;
2916 switch(pvar->vt)
2918 case VT_EMPTY:
2919 case VT_NULL:
2920 case VT_I1:
2921 case VT_I2:
2922 case VT_I4:
2923 case VT_I8:
2924 case VT_R4:
2925 case VT_R8:
2926 case VT_CY:
2927 case VT_DATE:
2928 case VT_ERROR:
2929 case VT_BOOL:
2930 case VT_DECIMAL:
2931 case VT_UI1:
2932 case VT_UI2:
2933 case VT_UI4:
2934 case VT_UI8:
2935 case VT_FILETIME:
2936 break;
2937 case VT_STREAM:
2938 case VT_STREAMED_OBJECT:
2939 case VT_STORAGE:
2940 case VT_STORED_OBJECT:
2941 if (pvar->u.pStream)
2942 IUnknown_Release(pvar->u.pStream);
2943 break;
2944 case VT_CLSID:
2945 case VT_LPSTR:
2946 case VT_LPWSTR:
2947 /* pick an arbitrary typed pointer - we don't care about the type
2948 * as we are just freeing it */
2949 CoTaskMemFree(pvar->u.puuid);
2950 break;
2951 case VT_BLOB:
2952 case VT_BLOB_OBJECT:
2953 CoTaskMemFree(pvar->u.blob.pBlobData);
2954 break;
2955 case VT_BSTR:
2956 if (pvar->u.bstrVal)
2957 PropSysFreeString(pvar->u.bstrVal);
2958 break;
2959 case VT_CF:
2960 if (pvar->u.pclipdata)
2962 OLE_FreeClipDataArray(1, pvar->u.pclipdata);
2963 CoTaskMemFree(pvar->u.pclipdata);
2965 break;
2966 default:
2967 if (pvar->vt & VT_VECTOR)
2969 ULONG i;
2971 switch (pvar->vt & ~VT_VECTOR)
2973 case VT_VARIANT:
2974 FreePropVariantArray(pvar->u.capropvar.cElems, pvar->u.capropvar.pElems);
2975 break;
2976 case VT_CF:
2977 OLE_FreeClipDataArray(pvar->u.caclipdata.cElems, pvar->u.caclipdata.pElems);
2978 break;
2979 case VT_BSTR:
2980 for (i = 0; i < pvar->u.cabstr.cElems; i++)
2981 PropSysFreeString(pvar->u.cabstr.pElems[i]);
2982 break;
2983 case VT_LPSTR:
2984 for (i = 0; i < pvar->u.calpstr.cElems; i++)
2985 CoTaskMemFree(pvar->u.calpstr.pElems[i]);
2986 break;
2987 case VT_LPWSTR:
2988 for (i = 0; i < pvar->u.calpwstr.cElems; i++)
2989 CoTaskMemFree(pvar->u.calpwstr.pElems[i]);
2990 break;
2992 if (pvar->vt & ~VT_VECTOR)
2994 /* pick an arbitrary VT_VECTOR structure - they all have the same
2995 * memory layout */
2996 CoTaskMemFree(pvar->u.capropvar.pElems);
2999 else
3000 WARN("Invalid/unsupported type %d\n", pvar->vt);
3003 ZeroMemory(pvar, sizeof(*pvar));
3005 return S_OK;
3008 /***********************************************************************
3009 * PropVariantCopy [OLE32.@]
3011 HRESULT WINAPI PropVariantCopy(PROPVARIANT *pvarDest, /* [out] */
3012 const PROPVARIANT *pvarSrc) /* [in] */
3014 ULONG len;
3015 HRESULT hr;
3017 TRACE("(%p, %p vt %04x)\n", pvarDest, pvarSrc, pvarSrc->vt);
3019 hr = PROPVARIANT_ValidateType(pvarSrc->vt);
3020 if (FAILED(hr))
3021 return hr;
3023 /* this will deal with most cases */
3024 *pvarDest = *pvarSrc;
3026 switch(pvarSrc->vt)
3028 case VT_EMPTY:
3029 case VT_NULL:
3030 case VT_I1:
3031 case VT_UI1:
3032 case VT_I2:
3033 case VT_UI2:
3034 case VT_BOOL:
3035 case VT_DECIMAL:
3036 case VT_I4:
3037 case VT_UI4:
3038 case VT_R4:
3039 case VT_ERROR:
3040 case VT_I8:
3041 case VT_UI8:
3042 case VT_R8:
3043 case VT_CY:
3044 case VT_DATE:
3045 case VT_FILETIME:
3046 break;
3047 case VT_STREAM:
3048 case VT_STREAMED_OBJECT:
3049 case VT_STORAGE:
3050 case VT_STORED_OBJECT:
3051 IUnknown_AddRef((LPUNKNOWN)pvarDest->u.pStream);
3052 break;
3053 case VT_CLSID:
3054 pvarDest->u.puuid = CoTaskMemAlloc(sizeof(CLSID));
3055 *pvarDest->u.puuid = *pvarSrc->u.puuid;
3056 break;
3057 case VT_LPSTR:
3058 len = strlen(pvarSrc->u.pszVal);
3059 pvarDest->u.pszVal = CoTaskMemAlloc((len+1)*sizeof(CHAR));
3060 CopyMemory(pvarDest->u.pszVal, pvarSrc->u.pszVal, (len+1)*sizeof(CHAR));
3061 break;
3062 case VT_LPWSTR:
3063 len = lstrlenW(pvarSrc->u.pwszVal);
3064 pvarDest->u.pwszVal = CoTaskMemAlloc((len+1)*sizeof(WCHAR));
3065 CopyMemory(pvarDest->u.pwszVal, pvarSrc->u.pwszVal, (len+1)*sizeof(WCHAR));
3066 break;
3067 case VT_BLOB:
3068 case VT_BLOB_OBJECT:
3069 if (pvarSrc->u.blob.pBlobData)
3071 len = pvarSrc->u.blob.cbSize;
3072 pvarDest->u.blob.pBlobData = CoTaskMemAlloc(len);
3073 CopyMemory(pvarDest->u.blob.pBlobData, pvarSrc->u.blob.pBlobData, len);
3075 break;
3076 case VT_BSTR:
3077 pvarDest->u.bstrVal = PropSysAllocString(pvarSrc->u.bstrVal);
3078 break;
3079 case VT_CF:
3080 if (pvarSrc->u.pclipdata)
3082 len = pvarSrc->u.pclipdata->cbSize - sizeof(pvarSrc->u.pclipdata->ulClipFmt);
3083 pvarDest->u.pclipdata = CoTaskMemAlloc(sizeof (CLIPDATA));
3084 pvarDest->u.pclipdata->cbSize = pvarSrc->u.pclipdata->cbSize;
3085 pvarDest->u.pclipdata->ulClipFmt = pvarSrc->u.pclipdata->ulClipFmt;
3086 pvarDest->u.pclipdata->pClipData = CoTaskMemAlloc(len);
3087 CopyMemory(pvarDest->u.pclipdata->pClipData, pvarSrc->u.pclipdata->pClipData, len);
3089 break;
3090 default:
3091 if (pvarSrc->vt & VT_VECTOR)
3093 int elemSize;
3094 ULONG i;
3096 switch(pvarSrc->vt & ~VT_VECTOR)
3098 case VT_I1: elemSize = sizeof(pvarSrc->u.cVal); break;
3099 case VT_UI1: elemSize = sizeof(pvarSrc->u.bVal); break;
3100 case VT_I2: elemSize = sizeof(pvarSrc->u.iVal); break;
3101 case VT_UI2: elemSize = sizeof(pvarSrc->u.uiVal); break;
3102 case VT_BOOL: elemSize = sizeof(pvarSrc->u.boolVal); break;
3103 case VT_I4: elemSize = sizeof(pvarSrc->u.lVal); break;
3104 case VT_UI4: elemSize = sizeof(pvarSrc->u.ulVal); break;
3105 case VT_R4: elemSize = sizeof(pvarSrc->u.fltVal); break;
3106 case VT_R8: elemSize = sizeof(pvarSrc->u.dblVal); break;
3107 case VT_ERROR: elemSize = sizeof(pvarSrc->u.scode); break;
3108 case VT_I8: elemSize = sizeof(pvarSrc->u.hVal); break;
3109 case VT_UI8: elemSize = sizeof(pvarSrc->u.uhVal); break;
3110 case VT_CY: elemSize = sizeof(pvarSrc->u.cyVal); break;
3111 case VT_DATE: elemSize = sizeof(pvarSrc->u.date); break;
3112 case VT_FILETIME: elemSize = sizeof(pvarSrc->u.filetime); break;
3113 case VT_CLSID: elemSize = sizeof(*pvarSrc->u.puuid); break;
3114 case VT_CF: elemSize = sizeof(*pvarSrc->u.pclipdata); break;
3115 case VT_BSTR: elemSize = sizeof(pvarSrc->u.bstrVal); break;
3116 case VT_LPSTR: elemSize = sizeof(pvarSrc->u.pszVal); break;
3117 case VT_LPWSTR: elemSize = sizeof(pvarSrc->u.pwszVal); break;
3118 case VT_VARIANT: elemSize = sizeof(*pvarSrc->u.pvarVal); break;
3120 default:
3121 FIXME("Invalid element type: %ul\n", pvarSrc->vt & ~VT_VECTOR);
3122 return E_INVALIDARG;
3124 len = pvarSrc->u.capropvar.cElems;
3125 pvarDest->u.capropvar.pElems = CoTaskMemAlloc(len * elemSize);
3126 if (pvarSrc->vt == (VT_VECTOR | VT_VARIANT))
3128 for (i = 0; i < len; i++)
3129 PropVariantCopy(&pvarDest->u.capropvar.pElems[i], &pvarSrc->u.capropvar.pElems[i]);
3131 else if (pvarSrc->vt == (VT_VECTOR | VT_CF))
3133 FIXME("Copy clipformats\n");
3135 else if (pvarSrc->vt == (VT_VECTOR | VT_BSTR))
3137 for (i = 0; i < len; i++)
3138 pvarDest->u.cabstr.pElems[i] = PropSysAllocString(pvarSrc->u.cabstr.pElems[i]);
3140 else if (pvarSrc->vt == (VT_VECTOR | VT_LPSTR))
3142 size_t strLen;
3143 for (i = 0; i < len; i++)
3145 strLen = lstrlenA(pvarSrc->u.calpstr.pElems[i]) + 1;
3146 pvarDest->u.calpstr.pElems[i] = CoTaskMemAlloc(strLen);
3147 memcpy(pvarDest->u.calpstr.pElems[i],
3148 pvarSrc->u.calpstr.pElems[i], strLen);
3151 else if (pvarSrc->vt == (VT_VECTOR | VT_LPWSTR))
3153 size_t strLen;
3154 for (i = 0; i < len; i++)
3156 strLen = (lstrlenW(pvarSrc->u.calpwstr.pElems[i]) + 1) *
3157 sizeof(WCHAR);
3158 pvarDest->u.calpstr.pElems[i] = CoTaskMemAlloc(strLen);
3159 memcpy(pvarDest->u.calpstr.pElems[i],
3160 pvarSrc->u.calpstr.pElems[i], strLen);
3163 else
3164 CopyMemory(pvarDest->u.capropvar.pElems, pvarSrc->u.capropvar.pElems, len * elemSize);
3166 else
3167 WARN("Invalid/unsupported type %d\n", pvarSrc->vt);
3170 return S_OK;
3173 /***********************************************************************
3174 * FreePropVariantArray [OLE32.@]
3176 HRESULT WINAPI FreePropVariantArray(ULONG cVariants, /* [in] */
3177 PROPVARIANT *rgvars) /* [in/out] */
3179 ULONG i;
3181 TRACE("(%u, %p)\n", cVariants, rgvars);
3183 if (!rgvars)
3184 return E_INVALIDARG;
3186 for(i = 0; i < cVariants; i++)
3187 PropVariantClear(&rgvars[i]);
3189 return S_OK;
3192 /******************************************************************************
3193 * DllDebugObjectRPCHook (OLE32.@)
3194 * turns on and off internal debugging, pointer is only used on macintosh
3197 BOOL WINAPI DllDebugObjectRPCHook(BOOL b, void *dummy)
3199 FIXME("stub\n");
3200 return TRUE;