DVD Player SDK ActiveX Control ReferenceEvents FullScreenKeyUp DVD Player ActiveX Control FullScreenKeyUp Occurs when screen full mode, keyboard key is released. Private Sub FullScreenKeyUp(ByVal iChar As Integer, ByVal iFlags As Integer) ParameteriCharSpecifies the virtual key code of the given key.iFlagsSpecifies the scan code, key-transition code, previous key state, and context code.