GLUTDISPLAYFUNC(3)

NAME
glutDisplayFunc - Sets the Display callback for the current window.

LIBRARY
OpenGLUT - windowcallback

SYNOPSIS
#include <openglut.h>
void
glutDisplayFunc(void( *callback )( void ));

PARAMETERS

callback Client function for normal redisplay event.

DESCRIPTION
Sets the display callback for the current window . All windows, including subwindows, must have a display callback registered. OpenGLUT will call the callback function whenever it thinks that the window may require updating.

This callback is bound to the current window .

CAVEATS
Unlike most callbacks, it is illegal to try to disable the display callback by setting it to NULL .

Multiple redisplays may be coalesced into a single event for invoking the callback only once.

SEE ALSO
glutPostRedisplay(3) glutOverlayDisplayFunc(3)