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From: eav@hpindda.HP.COM (Eugene Veteska)
Newsgroups: comp.windows.ms
Subject: Large dialog boxes eating memory
Message-ID: <40130007@hpindda.HP.COM>
Date: 21 Nov 89 22:24:16 GMT
Organization: HP Information Networks, Cupertino, CA
Lines: 26

Hi,
   I'm having problems with creating a big dialog box. If I create a big enough
dialog box, when the box is displayed, most of my conventional memory is
eaten up.  I have no controls inside the box.  As soon as the dialog box
is moved, the conventional memory comes back to normal.  I ran heapwalker
before and after I have moved the box and I find that there is an ~89K
non-discardable memory segment that is has been allocated by GDI.  When
the box is moved, this chunk of memory is freed.  This happens on a modeless
dialog box (haven't tried it on a modal one) and I can't seem to figure
out why this occurs.  The problem is when a different dialog box is brought up,
Windows hangs or there isn't enough memory to bring it up.  Has anyone 
else had or seen this problem.  Here's a copy of my dialog box:

TEST DIALOG LOADONCALL MOVEABLE DISCARDABLE 1, 7, 297, 203
CAPTION "Dialog"
STYLE WS_BORDER | WS_CAPTION | WS_SYSMENU | WS_SIZEBOX | WS_POPUP | WS_VISIBLE
BEGIN
END

Changing the style flags doesn't seem to help.  If I make the box small
enough (1, 7, 257, 153) this doesn't occur.  Thanks for any help.


Eugene Veteska
HP Information Networks Division
eav@hpindda.hp.com