|Microsoft DirectX 9.0|
Passes an EC_VIDEO_SIZE_CHANGED message to the filter graph manager.
virtual HRESULT OnVideoSizeChange(void);
Returns an HRESULT value that depends on the implementation; can be one of the following values, or other values not listed.
|E_OUTOFMEMORY||Out of memory.|
A video renderer should call this member function each time the video size is changed; this will typically be called once after initial connection. If the renderer can support dynamic format changes (from 320 x 240 to 160 x 120), it should also call it after each change.