Microsoft DirectX 9.0


The DisplayModeChanged method informs the VMR that a WM_DISPLAYCHANGE message has been received by the application.


HRESULT DisplayModeChanged();


This method takes no parameters.

Return Values

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

Error Code Description
VFW_E_WRONG_STATE The VMR is not in windowless mode.


An application must call this method whenever it receives a WM_DISPLAYCHANGE window message, but only if the VMR is currently in windowless mode.

See Also