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From: vanderpool@cals.enet.dec.com (Russ Vanderpool)
Newsgroups: comp.sys.mac.programmer
Subject: THINK C class library CPane question
Message-ID: <4972@ryn.mro4.dec.com>
Date: 25 May 91 21:39:14 GMT
Sender: guest@ryn.mro4.dec.com
Organization: Digital Equipment Corporation
Lines: 26




This is a note from a friend, replies can be sent to me.

Hi all,
        I am writing a program using THINK C's Class Library and I've
run into a bit of a stumbling block.  I have a window (Pane) defined and I have
defined several objects (panes within panes) to be placed in this window in
different positions.  This all works fine; I can select the object I want to
place in the window and place it just fine.  The problem is in trying to drag
the object somewhere else in the window.  I've been trying to work with my
overridden version of CMouseTask to do this and I can't seem to get the 
KeepTracking routine to work correctly.  I use a place command in the 
BeginTracking and EndTracking routines, so when I select an object, it does
get selected and repositioned wherever I let the mouse button go.  However,
the KeepTracking routine is supposed to handle things that happen when the
mouse button is down.  I tried putting my place routine in there also to
update the object's position for each new mouse location as it is moved.  It
does not seem to do this.  Any ideas?  Is there something about KeepTracking
that I'm not understanding correctly? Any help would be much appreciated.

In this subpane I have a bitmap. My ultimate goal to redraw this 
bitmap as I drag it across my main pane.

Tom