Legacy Document

Important: The information in this document is obsolete and should not be used for new development.

Inside Macintosh: Macintosh Toolbox Essentials /

Chapter 4 - Window Manager / Window Manager Reference

Window Manager Routines / Low-Level Routines

ClipAbove
The Window Manager uses the ClipAbove procedure to determine the clip region of the Window Manager port for displaying a window.
PROCEDURE ClipAbove (window: WindowPeek);
window
A pointer to the window's complete window record.

DESCRIPTION
The ClipAbove procedure sets the clip region of the Window Manager port to
be the area of the desktop that intersects the current clip region, minus the
structure regions of all the windows in front of the specified window.
The ClipAbove procedure retrieves the desktop region from the global
variable GrayRgn.