glutSpecialFunc (3) - Linux Manuals
glutSpecialFunc: Sets the Special callback for the current window
NAMEglutSpecialFunc - Sets the Special callback for the current window
LIBRARYOpenGLUT - input
SYNOPSISIn openglut.h Ft void Fn glutSpecialFunc void( *callback )( int key int x int y )
DESCRIPTIONRegisters a Bf Sy
The special callback handles some additional keys that
are not covered under plain "keyboard" events.
To receive other keys, see glutKeyboardFunc().
This callback is bound to the
CAVEATSMany keys are not included; nor is it possible to apply qualifiers such as the Shift or Ctrl key to these keys.
Windows created via glutCreateMenuWindow() always cascade keyboard and mouse events to their parent.
SEE ALSOglutSpecialUpFunc(3) glutKeyboardFunc(3)