glutInitWindowPosition(3GLUT) GLUT glutInitWindowPosition(3GLUT)

NAME
glutInitWindowPositionWindowPosition, glutInitWindowSize -
set the initial window position and size respectively.

SYNTAX
void glutInitWindowSize(int width, int height);
void glutInitWindowPosition(int x, int y);

ARGUMENTS
width Width in pixels.

height Height in pixels.

x Window X location in pixels.

y Window Y location in pixels.

DESCRIPTION
Windows created by glutCreateWindow will be requested to
be created with the current initial window position and
size.

The initial value of the initial window position GLUT
state is -1 and -1. If either the X or Y component to the
initial window position is negative, the actual window
position is left to the window system to determine. The
initial value of the initial window size GLUT state is 300
by 300. The initial window size components must be
greater than zero.

The intent of the initial window position and size values
is to provide a suggestion to the window system for a win-
dow’s initial size and position. The window system is not
obligated to use this information. Therefore, GLUT pro-
grams should not assume the window was created at the
specified size or position. A GLUT program should use the
window’s reshape callback to determine the true size of
the window.

EXAMPLE
If you would like your GLUT program to default to starting
at a given screen location and at a given size, but you
would also like to let the user override these defaults
via a command line argument (such as -geometry for X11),
call glutInitWindowSize and glutInitWindowPosition before
your call to glutInit. For example:

int main(int argc, char **argv)
{
glutInitWindowSize(500, 300);
glutInitWindowPosition(100, 100);
glutInit(&argc, argv);
...
}

However, if you’d like to force your program to start up
at a given size, call glutInitWindowSize and glutInitWin-
dowPosition after your call to glutInit. For example:

int main(int argc, char **argv)
{
glutInit(&argc, argv);
glutInitWindowSize(500, 300);
glutInitWindowPosition(100, 100);
...
}

SEE ALSO
glutInit, glutCreateWindow, glutCreateSubWindow, glutRe-
shapeFunc, glutGet

AUTHOR
Mark J. Kilgard (mjk@sgi.com)

GLUT 3.2 2