afx_msg void OnMButtonDown( UINT nFlags, CPoint point );
nFlags
Indicates whether various virtual keys are down. This parameter can be any combination of the following values:
| Value | Description |
| MK_CONTROL | Set if CONTROL key is down. |
| MK_LBUTTON | Set if left mouse button is down. |
| MK_MBUTTON | Set if middle mouse button is down. |
| MK_RBUTTON | Set if right mouse button is down. |
| MK_SHIFT | Set if SHIFT key is down. |
point
Specifies the x- and y-coordinate of the cursor. These coordinates are always relative to the upper-left corner of CWnd.
Called when the user presses the middle mouse button.
This message-handler member function calls the Default member function. Override this member function in your derived class to handle the WM_MBUTTONDOWN message.
CWnd::OnMButtonDblClk, CWnd::OnMButtonUp, CWnd::Default, WM_MBUTTONDOWN