nanogui: Understanging GrMap/GrUnmap Window
Subject:
Understanging GrMap/GrUnmap Window
From:
"Robbie" ####@####.####
Date:
15 Dec 2005 22:47:15 +0000
Message-Id: <20051215224708.A8CD1BB469@xprdmailfe25.nwk.excite.com>
First let me explain what I was tring to go:
I was hoping to use one WINDOW_ID (say master_id) to display various items on various windows (say window 1, window 2,... etc) depending on the mouse pointer on a specified window. So Window 1 will be displayed on the master_id and window_2 will be displayed on the same master_id at some later time. Sometimes I do have to add another window_id on top of the master_id (say mini_win_1) so as to have dynamic changing contents on the smaller window.
I discovered that if I Unmap the master_id, display window 2 on master_id and remap the window, mini_id is still there. I take that to mean that if I Unmap master_id to be reused, I have to Unmap all windows drawn on that master_id. Is that correct?
Why do I want to do all that? Well, I thought that would save memory becuase it appears that to Unmap a window does not remove it from memory but simply make it invisible. Does that make sense to anyone?
I would appreciate any input on this subject. What does Unmap really do?
Also, can I explicitly issue an EXPOSE_EVENT? What is the purpose of GrMapWindow by issuig an EXPOSURE event?
Thanks very much.
_______________________________________________
Join Excite! - http://www.excite.com
The most personalized portal on the Web!
