glutCreateWindow man page

glutCreateWindow — Create a new top-level window

Library

OpenGLUT - window

Synopsis

#include <openglut.h>

int
glutCreateWindow(const char* title);

Parameters


title


Title for created window

Description

This function sends a request for a window to be constructed. OpenGLUT immediately constructs a data structure to track further events with the window, on the theory that eventually the window manager will get back to us with a real window. This allows us to begin registering callbacks immediately.

In fact, you


must


register a display callback via glutDisplayFunc() before you enter glutMainLoop().

For onscreen windows, you should not depend upon the window concretely existing or being visibile until you are told that it exists and is visible via a registered callback.

The return value is an


int.


It should be positive for valid windows or 0 if failure occurred for some reason (Though traditional GLUT tends to bail out and abort rather than returning errors.) The integer is your


window id


. Old GLUT promises that these integers are ``small''; we do not reuse old


id


s, but do produce them sequentially.

You can change the title later via glutSetWindowTitle().

See Also

glutDestroyWindow(3) glutCreateSubWindow(3) glutSetWindowTitle(3) glutCreateMenuWindow(3)

 

Referenced By

glutCreateMenuWindow(3), glutCreateSubWindow(3), glutDestroyWindow(3), glutInit(3), glutPopWindow(3), glutPostWindowRedisplay(3), glutSetWindowTitle(3).