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From: jmidili@hub.cs.jmu.edu (jeff midili)
Newsgroups: comp.sys.mac.programmer
Subject: writing to a window without selecting it.
Message-ID: <1991Apr9.034248.6761@hub.cs.jmu.edu>
Date: 9 Apr 91 03:42:48 GMT
Distribution: comp
Organization: James Madison University
Lines: 20

Lots of programs like MacDraw, MacDraft, etc have a small window
seperate of the main image window that displays the x,y coordinates
of the mouse pointer withen the image.  I have written a program
that displays a pix image, and now I want to add the small window that
will display the x,y coordinates of the mouse when it is in the 
window.  I can do it now, but only by selecting the coordwindow during
each NULL event and drawstringing the coordinates in the coordwindow.
The problem with this is that for each NULL event I Select the coord-
window, draw in it, and then Select my image window.  This creates
unsightly flickering in each window.  

Is there another way to do this without getting into assembly?  I know
that the NIH Image Processing software package does just what I want
to do, but it is writtten in assembly.

I really appreciate any help I can get on this!

jeff midili

jmidili@hub.cs.jmu.edu