Stop dynamic decoding.
BOOL NET_DVR_MatrixStopDynamic( LONG lUserID, DWORD dwDecChanNum );
[IN] Value returned by NET_DVR_Login_V40.
[IN] Decoding channel No. or sub window No. (1-byte video wall No.+1-byte sub window No.+2-byte window No.)
Return TRUE for success, and return FALSE for failure.
If FALSE is returned, you can call NET_DVR_GetLastError to get the error code.