[Bug 43009] TIM message manager window covered by an unresponsive window

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=43009

--- Comment #17 from lilydjwg at gmail.com ---
(In reply to Dmitry Timoshkov from comment #16)
> (In reply to lilydjwg from comment #15)
> > Anyway, can you tell me how to debug this?
> 
> First thing to figure out is to get the properties of that unresponsive
> window (class name, class style, window name, window style/exstyle).
> Next step is to create the windows tree sorted by z-order the application
> creates. This task could be done using tools like Spy++ and similar.

I'm using WinSpy++.

Class is TXGFLayerMask, no/empty caption, style
WS_{POPUP,VISIBLE,CLIPSIBLINGS,CLIPCHILDREN}, exstyle WS_EX_TOOLWINDOW, and
three are shown in gray: WS_EX_{LEFT,LTRREADING,RIGHTSCROLLBAR}. TIM.exe
crashes when I switch WinSpy++ to the "Class" tab.

It has two children and no siblings. Both have class TXGuiFoundation. The
parent window is the underlying window but the underlying window doesn't have
any children.

When I make it invisible by the dropdown menu provided by WinSpy++, the
unresponsive window disappears and the underlying window works normally.

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