https://bugs.winehq.org/show_bug.cgi?id=43009
--- Comment #17 from lilydjwg@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.