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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| No
| Import Library
| -
| Header File
| winuser.h
| Unicode
| No
| Platform Notes
| None
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WM_CONTEXTMENU
The WM_CONTEXTMENU message notifies a window that the user clicked the right
mouse button (right clicked) in the window.
hwnd = (HWND) wParam;
xPos = LOWORD(lParam);
yPos = HIWORD(lParam);
Parameters
hwnd
Handle to the window in which the user right clicked the mouse. This can be a
child window of the window receiving the message. For more information about
processing this message, see the Remarks section.
xPos
Horizontal position of the cursor, in screen coordinates, at the time of the
mouse click.
yPos
Vertical position of the cursor, in screen coordinates, at the time of the
mouse click.
Return Values
No return value.
Remarks
A window can process this message by displaying a shortcut menu using the TrackPopupMenu or TrackPopupMenuEx function.
If a window does not display a shortcut menu it should pass this message to
the DefWindowProc function. If a window is a child window, DefWindowProc sends the message to the parent. Otherwise, DefWindowProc displays a default shortcut menu if the specified position is in the window's
caption.
DefWindowProc generates the WM_CONTEXTMENU message when it processes the WM_RBUTTONUP or
WM_NCRBUTTONUP message.
See Also
DefWindowProc, TrackPopupMenu, TrackPopupMenuEx, WM_NCRBUTTONUP, WM_RBUTTONUP
Related Links
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Unix Manual Pages
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