Microsoft Foundation Classes (mfc.hlp) (
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CWnd::OnSetCursor
◄CWnd► ◄Up► ◄Contents► ◄Index► ◄Back►
──Microsoft Foundation Classes──────────────────────────────────────────────
afx_msg BOOL OnSetCursor( CWnd* pWnd, UINT nHitTest,
UINT message );
Parameter Description
<pWnd> Specifies a pointer to the window that contains the cursor.
The pointer may be temporary, and should not be stored for
later use.
<nHitTest> Specifies the ◄hit-test► area code. The hit test determines
the cursor's location.
<message> Specifies the mouse message number.
Remarks
OnSetCursor is called if mouse input is not captured and the mouse
causes cursor movement within the CWnd.
This message-handler member function calls the ◄Default► member
function. Override this member function in your derived class to handle
the ◄WM_SETCURSOR► message.
By default, OnSetCursor calls the parent window's OnSetCursor before
processing. If the parent window returns TRUE, further processing is
halted. Calling the parent window gives the parent window control over
the cursor's setting in a child window.
By default, OnSetCursor also sets the cursor to an arrow if it is not in
the client area, or to the registered-class cursor if it is. If
<nHitTest> is HTERROR and <message> is a mouse button-down message, the
MessageBeep member function is called.
The <message> parameter is 0 when CWnd enters menu mode.
Return Value
The return value is ignored by Windows, but is used by the Default
member function when it calls the parent to determine if the parent
handled the message. TRUE means that the message was handled; otherwise
FALSE.
See Also
◄CWnd::OnNcHitTest►, ◄CWnd::Default►, ◄WM_SETCURSOR►
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