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glutDisplayFunc - Man Page

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).