CWnd::OnMButtonDblClk

Syntax

afx_msg void OnMButtonDblClk( UINT nFlags, CPoint point );

Parameters

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-coordinates of the cursor. These coordinates are always relative to the upper-left corner of CWnd.

Remarks

Called when the user double-clicks the middle mouse button.

Only windows that have the CS_DBLCLKS WNDCLASS style will receive OnMButtonDblClk calls. This is the default for all Microsoft Foundation Class Library windows. Windows generates a OnMButtonDblClk call when the user presses, releases, and then presses the middle mouse button again within the system's double-click time limit. Double-clicking the middle mouse button actually generates four events: WM_MBUTTONDOWN and WM_MBUTTONUP messages, the WM_MBUTTONDBLCLK call, and another WM_MBUTTONUP message.

This message-handler member function calls the Default member function. Override this member function in your derived class to handle the WM_MBUTTONDBLCLK message.

See Also

CWnd::Default, CWnd::OnMButtonDown, CWnd::OnMButtonUp, WM_MBUTTONDBLCLK