IVMRMixerBitmap9::UpdateAlphaBitmapParameters method

The UpdateAlphaBitmapParameters method changes the bitmap location, size and blending value.

Syntax


HRESULT UpdateAlphaBitmapParameters(
  [inconst VMR9AlphaBitmap *pBmpParms
);

Parameters

pBmpParms [in]

Pointer to a VMR9AlphaBitmap structure.

Return value

The method returns an HRESULT. Possible values include those in the following table.

Return codeDescription
S_OK

The method succeeded.

 

Remarks

The filter graph must be running for the changes to take effect. This method does not change the bitmap image. If you specify a VMR9AlphaBitmap structure with no destination or color key set, the bitmap is not displayed. This behavior was implemented for backward compatibility.

Include DShow.h and D3d9.h before Vmr9.h.

Requirements

Minimum supported client

Windows XP with SP2 [desktop apps only]

Minimum supported server

Windows Server 2003 R2 [desktop apps only]

Header

Vmr9.h

Library

Strmiids.lib

See also

Using the Video Mixing Renderer
IVMRMixerBitmap9 Interface

 

 

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