glutDisplayFunc man page

glutDisplayFunc ā€” 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)

Referenced By

glutInit(3), glutOverlayDisplayFunc(3), glutPopWindow(3), glutPostRedisplay(3), glutPostWindowRedisplay(3).

August 9, 2018