Why CButton-derived class with BS_GROUPBOX style doesn't get messages?

[Yaumen]

Hi I try to create my own GroupBox (CButton class with BS_GROUPBOX style) control but that class doesn't get any messages from the mouse: WM_MOUSEMOVE, WM_LBUTTONDOWN, WM_LBUTTONUP and etc. I can't understand why. Can anyone help me?

[Lost User]

Have you added a message map to your class, as described in https://msdn.microsoft.com/en-us/library/yf1wax6c.aspx[^]?

[Yaumen]

I added to .h afx_msg void OnMouseMove(UINT nFlags, CPoint point); and to .cpp ON_WM_MOUSEMOVE() ... void CMyGroupBox::OnMouseMove(UINT nFlags, CPoint point) { } That works for simple CButton-derived class but with BS_GROUPBOX style it's not work

[Jochen Arndt]

A group box is by design not intended to handle mouse messages but passes them through. You might have a look at this StackOverflow thread which seems to provide a solution: http://stackoverflow.com/questions/2541714/adding-click-double-click-events-to-static-group-box-controls[^]

[Yaumen]

Thanks a lot The way with WM_NCHITTEST handler works!