IVMRMixerBitmap::UpdateAlphaBitmapParameters

This topic applies to Windows XP Home Edition and Windows XP Professional only.

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

Syntax

HRESULT UpdateAlphaBitmapParameters(
  PVMRALPHABITMAP  pBmpParms
);

Parameters

pBmpParms

[in]  A PVMRALPHABITMAP, which is defined as a pointer to a VMRALPHABITMAP structure.

Return Values

If the method succeeds, it returns S_OK. If it fails, it returns an error code.

Remarks

The filter graph must be running for the changes to take effect. This method does not change the bitmap image.

See Also

• IVMRMixerBitmap Interface