A curious problem, one that I think I've seen before.
I have a .250 MLOC vb6 app that uses the common dialog control. If I
select File/Open in my app to display the file open dialog and then
alt-tab to another running app, when I try to alt-tab back to my app,
the common dialog box and my apps main window is gone (can't see it in
the task bar, or in the alt-tab window). If I then maximize another
window and minimize it again, my app and common dialog are there again.
Similarly, if I select File/Open and display the common dialog, click
another app in the task bar, then click my apps task bar icon, my apps
main window reappears but the common dialog is invisible. If I then
maximize and then minimize another app, the common dialog reappears.
Clues?
Bo