Hi. Great thanks for the participation.
You wrote
I have also had such a problem with one of the programs - it created a managed child of an unmanaged window. The unmanaged window was on top and hiding it's child so the program looked like it hanged. If someone is interested here is a sample program (with source code) that does that. In this program, at least under KDE, it's still possible to start the application, as the message box is visible in the taskbar - it's possible to move it outside the splash screen. In the app I had the dialog wasn't even listed in the taskbar.
If you've seen the test programm I attached, you can find that the DIALOG STYLED modal child window appear over its owner (but you can still bring it behind) - this quite satisfy us. As opposed to dialog modal window the sizeable one don't.
What you think about this?
Wish you success.
Vitaly N. Zadunaisky.