Window Movement

Hello Programmers,
I'm trying to move a window by dragging in a RECT with WM_MOUSEMOVE and MoveWindow() but my window is going crazy! Can some one please help me? My window is a WS_POPUP and I want it to be dragable. Any Examples?

Thanks anyway, greets Phoenix!

Code:

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case WM_NCHITTEST:
  return HTCAPTION;

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See WM_NCHITTEST for more information and search this board for further examples and discussion.

If you want more help with your specific implementation then post some code.

Oke Thank you man!