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windowswinapiwindow-messages

Determine if a given window is currently being moved

Basically, I'm looking for a IsWindowMoving(HWND) Win32 API call. I need to know if the user is currently moving a window.

The window doesn't belong to me, so listening for WM_SYSCOMMAND / SC_MOVE or WM_MOVING isn't possible (I don't want to subclass or hook due to 32/64 interop).

Solution

  • If the window doesn't belong to you and you're not going to snoop messages, the best you can I think is get hold of a handle to that window. That limits you to whatever informational function calls exist which work on a handle. I know of no such call which can inform the user that the window is being moved.

    You may be out of luck.