CWnd::OnRegisteredMouseWheel

The framework calls this member function as a user rotates the mouse wheel and encounters the wheel's next notch.

afx_msg LRESULT OnRegisteredMouseWheel(
   WPARAM wParam,
   LPARAM lParam 
);

Parameters

• wParam
  Horizontal position of the pointer.

• lParam
  Vertical position of the pointer.

Return Value

Insignificant at this time. Always zero.

Remarks

Unless overridden, OnRegisteredMouseWheel routes the message to the appropriate window (the parent window with focus), and calls the WM_MOUSEWHEEL handler for that window.

Override this member function to provide your own message routing or to alter the mouse-wheel scrolling behavior.

Requirements

Header: afxwin.h

See Also

Reference

CWnd Class

Hierarchy Chart

RegisterWindowMessage

Concepts

CWnd Members