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Home » U++ Library support » U++ Widgets - General questions or Mixed problems » Drop list is not shown
Drop list is not shown [message #43858] Mon, 10 November 2014 17:06 Go to previous message
Mindtraveller is currently offline  Mindtraveller
Messages: 917
Registered: August 2007
Location: Russia, Moscow rgn.
Experienced Contributor

There's a complex application with two TopWindows.
First TopWindow is used as a main window. The second TopWindow is a settings window which is shown from time to time.
The main TopWindow is executed with Run() call.
The second TopWindow is executed with Execute().

The problem is starting with some U++ revision, drop-down lists in settings window is not shown after user clicks list boxes. Instead of that, only black horizontal line is drawn. But right after settings window is commanded to close, a drop-down list is immediately shown and then hidden.

I've captured screencast introducing this behavior:
http://www.youtube.com/watch?v=B1jCTFANojk
(sorry for the poor frame rate).

Does anyone have a clue why drop lists behave this way and how to fix it?

OS: Windows 7 SP1
U++: revision 7881
 
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