|Microsoft DirectX 9.0|
The SetWindowForeground method moves the video window to the foreground and optionally gives it focus.
HRESULT SetWindowForeground( long Focus );
Value that specifies whether the video window will get focus. A value of 1 gives the window focus and 0 does not.
Returns one of the following values.
|NOERROR||The method succeeded.|
|E_INVALIDARG||Focus doesn't equal 1 or 0.|
|VFW_E_NOT_CONNECTED||The current filter isn't connected to a complete filter graph.|