If tkwin is a child window (i.e. Tk_CreateChildWindow was used to create it), then event handlers interested in map and unmap events are invoked immediately. If tkwin isn't an internal window, then the event handlers will be invoked later, after X has seen the request and returned an event for it.
These procedures should be used in place of the X procedures XMapWindow and XUnmapWindow, since they update Tk's local data structure for tkwin. Applications using Tk should not invoke XMapWindow and XUnmapWindow directly.
Copyright © 1990 The Regents of the University of California. Copyright © 1994-1997 Sun Microsystems, Inc. Copyright © 1995-1997 Roger E. Critchlow Jr.