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CGXMouseWheelPlugin::OnIMouseVScroll

virtual void OnIMouseVScroll(UINT nSBCode, UINT nScroll);

nSBCode

• Specifies a scroll-bar code that indicates the user's scrolling request:
  
  
• SB_LINEDOWN   Scroll one line down.
  
  
• SB_LINEUP   Scroll one line up.
  
  
• SB_PAGEDOWN   Scroll one page down.

SB_PAGEUP   Scroll one page up.

nScroll

Contains the number of lines to scroll if the scroll-bar code is SB_LINEDOWN or SB_LINEUP. Not used otherwise.

Remarks

Called to scroll the parent window vertically. The method sends a WM_VSCROLL message to the parent window.

CGXMouseWheelPlugin

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