🚀 go-pugleaf

Hi,


In an application we've written we have a dialog based MFC application
based on the CPropertySheet class. We are dynamically adding and
removing pages while the the dialog is displayed.

If the property pages we're adding and removing contain controls (i've
tried it with buttons and treecontrols), then we have a memory leak:
when I constantly add and remove pages, thus always returning to a
same initial state, the application consumes more and more memory.

It has nothing to do with the CPropertyPage derived objects
themselves. I added several integer members to them, to make the
memoryfootprint of the object bigger, but this doesn't cause the
memory leak to be bigger. However, when I fill the dialog (by using
the dialog editor of visual studio 6.0) with a lot of buttons, then
the memory leak is getting bigger. I've added no functionality to the
buttons, and not to the CPropertyPage derived class, except for one
button with which I can add and remove pages to the CPropertySheet
derived dailogbox. Thus it looks like MFC doesn't destroy the dialog
template, or the controls on it. The page we're removing is NOT the
active page. I've tried explicitly callling destroywindow on the
propertypage that gets removed but this does not work neither.

The only functionality the application has, is adding and removing
CPropertyPage derived objects, so the memoryleak can not be caused by
anything else.

Does anyone have an idea what can be wrong and how to solve it ?????


Thanks,

Serge Desmedt