Control scene switch.
BOOL NET_DVR_MatrixSceneControl( LONG lUserID, DWORD dwSceneNum, DWORD dwCmd, DWORD dwCmdParam )
[IN] User ID, which is returned by NET_DVR_Login_V40.
[IN] Scene No., which can be got from the capability set.
[IN] Command type: 1-scene switch, 2-initializing the scene (clear the current configuration), 3-force to swich scene, 4-save the scene.
[IN] Command parameter, reserved.
Return TRUE for success and FALSE for failure. If FALSE is returned, you can call NET_DVR_GetLastError to get the error code.