glutgetwindowdata(3) - Linux man page

Name

glutGetWindowData - Get the user data for the current window

Library

OpenGLUT - window

Synopsis

#include <openglut.h>

void*

glutGetWindowData(void);

Description

This function will return whatever void* value is associated with the current window via glutSetWindowData(). This is NULL if you did not associate a pointer with your window. This can be useful in a situation where you have a single callback function performing services for many windows. You could keep track of the window id s in a global list and search for the current window in that list. But this is quicker than searching a data structure, and allows you to avoid the use of globals for this.

See Also

glutsetwindowdata(3)

BSD Epoch BSD