[Freeglut-developer] Call for comments on window positions and sizes

[Fay J. F C. AAC/W. <joh...@eg...>]

Gentlemen,

	I am trying to implement the window position and size code.  Since
this is rather a momentous change, I don't want to make it without some
explicit comments in favour of it.  At the moment I plan to break
compatibility with GLUT because GLUT doesn't work properly across the
platforms.

	I propose that the position of a window be the x- and y-coordinates
of the upper left hand corner of its outer edge.  This means that the
drawable area will be somewhat further down and to the right.  At the moment
GLUT does this in Linux but not in Windows, and "freeglut" mimics this
behaviour.

	I also propose that the "glutGet" function with arguments
"GLUT_WINDOW_X" and "GLUT_WINDOW_Y" return the coordinates of the upper left
hand corner of the outer edge of the window.  At the moment it does not do
this on any platform, either in "freeglut" or in GLUT.  On Windows this is
okay because it is consistent with the way the window is positioned when it
is defined.  On Linux this is not okay because it means you can create a
window at (100,100) and its position will be returned as (106,120).

	I propose further that the size of a window be the dimensions of its
drawable area.  GLUT and "freeglut" both do this on all platforms, as far as
I know.  To change it would wreak havoc on existing applications.

John F. Fay
joh...@eg...