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windowscodecs: Add a WARN message when CreateDecoderFromStream fails.

This commit is contained in:
Vincent Povirk 2009-08-14 16:13:15 -05:00 committed by Alexandre Julliard
parent a3575824ea
commit ad1d8adfeb
1 changed files with 15 additions and 0 deletions
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15
dlls/windowscodecs/imgfactory.c
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@ -164,6 +164,21 @@ static HRESULT WINAPI ImagingFactory_CreateDecoderFromStream(
}
else
{
if (WARN_ON(wincodecs))
{
LARGE_INTEGER seek;
BYTE data[4];
ULONG bytesread;
WARN("failed to load from a stream\n");
seek.QuadPart = 0;
res = IStream_Seek(pIStream, seek, STREAM_SEEK_SET, NULL);
if (SUCCEEDED(res))
res = IStream_Read(pIStream, data, 4, &bytesread);
if (SUCCEEDED(res))
WARN("first %i bytes of stream=%x %x %x %x\n", bytesread, data[0], data[1], data[2], data[3]);
}
*ppIDecoder = NULL;
return WINCODEC_ERR_COMPONENTNOTFOUND;
}