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ole32: Add support for retrieving extents of dib format.

This commit is contained in:
Huw Davies 2015-03-25 08:37:39 +00:00 committed by Alexandre Julliard
parent bbba2c00aa
commit e410f273cd
1 changed files with 35 additions and 0 deletions
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35
dlls/ole32/datacache.c
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@ -1846,6 +1846,41 @@ static HRESULT WINAPI DataCache_GetExtent(
return S_OK;
}
case CF_DIB:
{
BITMAPFILEHEADER *file_head;
BITMAPINFOHEADER *info;
LONG x_pels_m, y_pels_m;
if ((cache_entry->stgmedium.tymed != TYMED_HGLOBAL) ||
!((file_head = GlobalLock( cache_entry->stgmedium.u.hGlobal ))))
continue;
info = (BITMAPINFOHEADER *)(file_head + 1);
x_pels_m = info->biXPelsPerMeter;
y_pels_m = info->biYPelsPerMeter;
/* Size in units of 0.01mm (ie. MM_HIMETRIC) */
if (x_pels_m != 0 && y_pels_m != 0)
{
lpsizel->cx = info->biWidth * 100000 / x_pels_m;
lpsizel->cy = info->biHeight * 100000 / y_pels_m;
}
else
{
HDC hdc = GetDC( 0 );
lpsizel->cx = info->biWidth * 2540 / GetDeviceCaps( hdc, LOGPIXELSX );
lpsizel->cy = info->biHeight * 2540 / GetDeviceCaps( hdc, LOGPIXELSY );
ReleaseDC( 0, hdc );
}
GlobalUnlock( cache_entry->stgmedium.u.hGlobal );
return S_OK;
}
}
}