ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ole32: Store the marshalled IDataObject in a window property of the clipboard window. 

This is somewhat different from how Windows behaves. Windows stores
two properties; an IID and an endpoint number.
This commit is contained in:
Huw Davies 2009-04-16 12:12:03 +01:00 committed by Alexandre Julliard
parent 1ec12f68b1
commit 6d4a394099
1 changed files with 56 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

57
dlls/ole32/clipboard.c
View File

@ -137,6 +137,7 @@ typedef struct ole_clipbrd
HWND window; /* Hidden clipboard window */
IDataObject *src_data; /* Source object passed to OleSetClipboard */
ole_priv_data *cached_enum; /* Cached result from the enumeration of src data object */
IStream *marshal_data; /* Stream onto which to marshal src_data */
} ole_clipbrd;
static inline ole_clipbrd *impl_from_IDataObject(IDataObject *iface)
@ -174,6 +175,8 @@ static inline HRESULT get_ole_clipbrd(ole_clipbrd **clipbrd)
*/
static const WCHAR clipbrd_wndclass[] = {'C','L','I','P','B','R','D','W','N','D','C','L','A','S','S',0};
static const WCHAR wine_marshal_dataobject[] = {'W','i','n','e',' ','m','a','r','s','h','a','l',' ','d','a','t','a','o','b','j','e','c','t',0};
static UINT dataobject_clipboard_format;
static UINT ole_priv_data_clipboard_format;
static UINT embed_source_clipboard_format;
@ -829,6 +832,7 @@ static void OLEClipbrd_Destroy(ole_clipbrd* This)
if ( This->window ) destroy_clipbrd_window(This->window);
IStream_Release(This->marshal_data);
HeapFree(GetProcessHeap(), 0, This);
}
@ -1119,6 +1123,7 @@ static const IDataObjectVtbl OLEClipbrd_IDataObject_VTable =
static ole_clipbrd* OLEClipbrd_Construct(void)
{
ole_clipbrd* This;
HGLOBAL h;
This = HeapAlloc( GetProcessHeap(), 0, sizeof(*This) );
if (!This) return NULL;
@ -1130,7 +1135,18 @@ static ole_clipbrd* OLEClipbrd_Construct(void)
This->src_data = NULL;
This->cached_enum = NULL;
h = GlobalAlloc(GMEM_DDESHARE | GMEM_MOVEABLE, 0);
if(!h) goto error;
if(FAILED(CreateStreamOnHGlobal(h, TRUE, &This->marshal_data)))
goto error;
return This;
error:
if(h) GlobalFree(h);
HeapFree(GetProcessHeap(), 0, This);
return NULL;
}
static void register_clipboard_formats(void)
@ -1291,17 +1307,45 @@ static inline HRESULT get_clipbrd_window(ole_clipbrd *clipbrd, HWND *wnd)
return *wnd ? S_OK : E_FAIL;
}
/**********************************************************************
* release_marshal_data
*
* Releases the data and sets the stream back to zero size.
*/
static inline void release_marshal_data(IStream *stm)
{
LARGE_INTEGER pos;
ULARGE_INTEGER size;
pos.QuadPart = size.QuadPart = 0;
IStream_Seek(stm, pos, STREAM_SEEK_SET, NULL);
CoReleaseMarshalData(stm);
IStream_Seek(stm, pos, STREAM_SEEK_SET, NULL);
IStream_SetSize(stm, size);
}
/***********************************************************************
* set_src_dataobject
*
* Clears and sets the clipboard's src IDataObject.
*
* To marshal the source dataobject we do something rather different from Windows.
* We set a window prop which contains the marshalled data.
* Windows set two props one of which is an IID, the other is an endpoint number.
*/
static HRESULT set_src_dataobject(ole_clipbrd *clipbrd, IDataObject *data)
{
HRESULT hr = S_OK;
HRESULT hr;
HWND wnd;
if(FAILED(hr = get_clipbrd_window(clipbrd, &wnd))) return hr;
if(clipbrd->src_data)
{
RemovePropW(wnd, wine_marshal_dataobject);
release_marshal_data(clipbrd->marshal_data);
IDataObject_Release(clipbrd->src_data);
clipbrd->src_data = NULL;
HeapFree(GetProcessHeap(), 0, clipbrd->cached_enum);
@ -1310,8 +1354,19 @@ static HRESULT set_src_dataobject(ole_clipbrd *clipbrd, IDataObject *data)
if(data)
{
HGLOBAL h;
IUnknown *unk;
IDataObject_AddRef(data);
clipbrd->src_data = data;
IDataObject_QueryInterface(data, &IID_IUnknown, (void**)&unk);
hr = CoMarshalInterface(clipbrd->marshal_data, &IID_IDataObject, unk,
MSHCTX_LOCAL, NULL, MSHLFLAGS_TABLESTRONG);
IUnknown_Release(unk); /* Don't hold a ref on IUnknown, we have one on IDataObject. */
if(FAILED(hr)) return hr;
GetHGlobalFromStream(clipbrd->marshal_data, &h);
SetPropW(wnd, wine_marshal_dataobject, h);
hr = set_clipboard_formats(clipbrd, data);
}
return hr;