winapiwindowowner

How to change a Window Owner using its handle

I want to make a .NET Form as a TopMost Form for another external App (not .NET related, pure Win32) so it stays above that Win32App, but not the rest of the apps running.

I Have the handle of the Win32App (provided by the Win32App itself), and I've tried Win32 SetParent() function, via P/Invoke in C#, but then my .NET Form gets confined into the Win32App and that's not what I want.

Solution

  • I think you're looking for is to P/Invoke SetWindowLongPtr(win32window, GWLP_HWNDPARENT, formhandle)

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