gdiplus: Implement GdipCreateHBITMAPFromBitmap

[Nikolay Sivov]

Massimo Del Fedele wrote:
> Massimo Del Fedele ha scritto:
>> Should work for both DIBs and DDBs format, but strange enough the 
>> IPicture bitmap
>> inside wine gdiplus bitmap is always a 32 bit DDB by now... haven't 
>> found any
>> other case.
>>
>> Ciao
>>
>> Max
>>
>>
>> ------------------------------------------------------------------------
>>
>>
> sorry again... another dumb copy/paste :-(
> Former had a spurious FIXME used for debugging purposes
>
> Max
+    IPicture_get_Handle(bitmap->image.picture, (OLE_HANDLE*)&hbm);
+    if(!hbm)
+        /* FIXME: return appropriate error code */
+        return GenericError;
+
+    /* gets bitmap data and find out bitmap's type */
+    if(!(size = GetObjectW(hbm, sizeof(DIBSECTION), &ds)))
+    {
+        ERR("Couldn't get bitmap data\n");
+        return GenericError;
+    }

Could be HICON here (see GdipCreateBitmapFromHICON) or metafile.
Since there's no tests for that could you please an explicit FIXME for
that types?