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ole32: Add support for rendering HBITMAP clipboard objects.

This commit is contained in:
Alexander Scott-Johns 2011-01-25 03:12:20 +00:00 committed by Alexandre Julliard
parent 0f4fbd30f6
commit d73db97104
1 changed files with 69 additions and 1 deletions
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70
dlls/ole32/clipboard.c
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@ -534,6 +534,36 @@ static void free_metafilepict(HGLOBAL src)
GlobalFree(src);
}
/***********************************************************************
* dup_bitmap
*
* Helper function to duplicate an HBITMAP.
*/
static HRESULT dup_bitmap(HBITMAP src, HBITMAP *pdest)
{
HDC src_dc;
HGDIOBJ orig_src_bitmap;
BITMAP bm;
HBITMAP dest;
src_dc = CreateCompatibleDC(NULL);
orig_src_bitmap = SelectObject(src_dc, src);
GetObjectW(src, sizeof bm, &bm);
dest = CreateCompatibleBitmap(src_dc, bm.bmWidth, bm.bmHeight);
if (dest)
{
HDC dest_dc = CreateCompatibleDC(NULL);
HGDIOBJ orig_dest_bitmap = SelectObject(dest_dc, dest);
BitBlt(dest_dc, 0, 0, bm.bmWidth, bm.bmHeight, src_dc, 0, 0, SRCCOPY);
SelectObject(dest_dc, orig_dest_bitmap);
DeleteDC(dest_dc);
}
SelectObject(src_dc, orig_src_bitmap);
DeleteDC(src_dc);
*pdest = dest;
return dest ? S_OK : E_FAIL;
}
/************************************************************
* render_embed_source_hack
*
@ -855,6 +885,37 @@ static HRESULT get_data_from_metafilepict(IDataObject *data, FORMATETC *fmt, HGL
return hr;
}
/***************************************************************************
* get_data_from_bitmap
*
* Returns bitmap in an HBITMAP.
*/
static HRESULT get_data_from_bitmap(IDataObject *data, FORMATETC *fmt, HBITMAP *hbm)
{
HBITMAP copy;
HRESULT hr;
FORMATETC mem_fmt;
STGMEDIUM med;
*hbm = NULL;
mem_fmt = *fmt;
mem_fmt.tymed = TYMED_GDI;
hr = IDataObject_GetData(data, &mem_fmt, &med);
if(FAILED(hr)) return hr;
hr = dup_bitmap(med.u.hBitmap, &copy);
if(FAILED(hr)) return hr;
if(hbm) *hbm = copy;
else hr = E_FAIL;
ReleaseStgMedium(&med);
return hr;
}
/***********************************************************************
* render_format
*
@ -863,7 +924,7 @@ static HRESULT get_data_from_metafilepict(IDataObject *data, FORMATETC *fmt, HGL
*/
static HRESULT render_format(IDataObject *data, LPFORMATETC fmt)
{
HGLOBAL clip_data = NULL;
HANDLE clip_data = NULL; /* HGLOBAL unless otherwise specified */
HRESULT hr;
/* Embed source hack */
@ -893,6 +954,11 @@ static HRESULT render_format(IDataObject *data, LPFORMATETC fmt)
/* Returns global handle to METAFILEPICT, containing a copied HMETAFILE */
hr = get_data_from_metafilepict(data, fmt, &clip_data);
}
else if(fmt->tymed & TYMED_GDI)
{
/* Returns HBITMAP not HGLOBAL */
hr = get_data_from_bitmap(data, fmt, (HBITMAP *)&clip_data);
}
else
{
FIXME("Unhandled tymed %x\n", fmt->tymed);
@ -906,6 +972,8 @@ static HRESULT render_format(IDataObject *data, LPFORMATETC fmt)
WARN("() : Failed to set rendered clipboard data into clipboard!\n");
if(fmt->tymed & TYMED_MFPICT)
free_metafilepict(clip_data);
else if(fmt->tymed & TYMED_GDI)
DeleteObject(clip_data);
else
GlobalFree(clip_data);
hr = CLIPBRD_E_CANT_SET;