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From: vrm@blackwater.cerc.wvu.wvnet.edu (Vasile R. Montan)
Newsgroups: comp.sys.mac.programmer
Subject: Why would it suddenly become impossible to draw into a modal dialog?
Message-ID: <1767@babcock.cerc.wvu.wvnet.edu>
Date: 16 May 91 02:01:27 GMT
Sender: news@cerc.wvu.wvnet.edu
Reply-To: un020070@vaxa.wvnet.edu
Lines: 26

Well, this one's got me stumped. :-/

Before, I have never had any problem drawing into a modal dialog;
you just setPort to the dialog and draw into it as you would into
any window.

For some reason, a dialog I am working on starts out drawing fine, but
after once or twice through the loop, it becomes impossible to
draw anything else into the dialog.  All of the mouse events
are handled properly, but the loss of drawing ability is so absolute
that the Toolbox can't even hilite its own buttons.  Reapplication of
SetPort doesn't help the problem any.

The dialog is a fairly complex one, containing several buttons,
four pop-up menus, an editable text item, a PICT, and several disabled
text items.  There is a complex filter function which handles the
pop-up menus.  The pop-up items are defined in my template as user
items; I set a pointer to the routine to draw the menu boxes so that
updates are handled automatically.  I am not certain, but the problem
*may* have first manifested when I changed my code so that these
items were drawn in this manner (with a pointer passed by SetDItem).

Any good ideas?

--Kurisuto
un020070@vaxa.wvnet.edu