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The framework calls this member function for the CWnd object that contains the cursor (or the CWnd object that used the SetCapture member function to capture the mouse input) every time the mouse is moved.

afx_msg LRESULT OnNcHitTest( 
   CPoint point  


Contains the x- and y-coordinates of the cursor. These coordinates are always screen coordinates.

One of the mouse hit-test enumerated values listed below.

Note Note

This member function is called by the framework to allow your application to handle a Windows message. The parameters passed to your function reflect the parameters received by the framework when the message was received. If you call the base-class implementation of this function, that implementation will use the parameters originally passed with the message and not the parameters you supply to the function.

  • HTBORDER   In the border of a window that does not have a sizing border.

  • HTBOTTOM   In the lower horizontal border of the window.

  • HTBOTTOMLEFT   In the lower-left corner of the window border.

  • HTBOTTOMRIGHT   In the lower-right corner of the window border.

  • HTCAPTION   In a title-bar area.

  • HTCLIENT   In a client area.

  • HTCLOSE   In a Close button.

  • HTERROR   On the screen background or on a dividing line between windows (same as HTNOWHERE except that the DefWndProc Windows function produces a system beep to indicate an error).

  • HTGROWBOX   In a size box.

  • HTHELP   In a Help button.

  • HTHSCROLL   In the horizontal scroll bar.

  • HTLEFT   In the left border of the window.

  • HTMAXBUTTON   In a Maximize button.

  • HTMENU   In a menu area.

  • HTMINBUTTON   In a Minimize button.

  • HTNOWHERE   On the screen background or on a dividing line between windows.

  • HTREDUCE   In a Minimize button.

  • HTRIGHT   In the right border of the window.

  • HTSIZE   In a size box (same as HTGROWBOX).

  • HTSYSMENU   In a Control menu or in a Close button in a child window.

  • HTTOP   In the upper horizontal border of the window.

  • HTTOPLEFT   In the upper-left corner of the window border.

  • HTTOPRIGHT   In the upper-right corner of the window border.

  • HTTRANSPARENT   In a window currently covered by another window.

  • HTVSCROLL   In the vertical scroll bar.

  • HTZOOM   In a Maximize button.

Header: afxwin.h