extern void fgPlatformDeinitialiseInputDevices ( void );
extern void fgPlatformCloseDisplay ( void );
extern void fgPlatformDestroyContext ( SFG_PlatformDisplay pDisplay, SFG_WindowContextType MContext );
+extern void fgInitGL2();
void fghParseCommandLineArguments ( int* pargc, char** argv, char **pDisplayName, char **pGeometry )