Re: Create a WS_CHILD window in another thread with its own WinPro

Hi Doc,

Thanks for the feedback.

Sorry, currently, I do not think I understand your problem context
completely. Based on the WS_CLIPCHILDREN description in MSDN, it will
exclude the area occupied by child windows when drawing occurs within the
parent window. So it sounds suitable for your scenario. If it does not work
for you, please feel free to tell me, thanks.

Do you create 2 top-level windows in 2 separate threads or 2 child windows
in separate threads? I do not recommend you to create the child windows in
separate threads. For legacy reason, win32 standard controls are
encapsulated using STA threading model, so normally all the windows should
be placed in a single GUI thread, or some strange threading issue may
occur. Yes, it may be feasibility to place 2 top-level windows in different
threads, however, this is a rare situation(Explorer process place different
top-level windows in separate threads). You always need a message loop in a
GUI thread.

Can you tell me why do you need 2 threads for the windows? Thanks

Best regards,
Jeffrey Tan
Microsoft Online Community Support
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