CGXMouseWheelPlugin::OnIMouseVScroll
virtual void OnIMouseVScroll(UINT nSBCode, UINT nScroll);
nSBCode
-
Specifies a scroll-bar code that indicates the user's scrolling request:
- SB_LINEDOWNScroll one line down.
- SB_LINEUPScroll one line up.
- SB_PAGEDOWNScroll one page down.
SB_PAGEUPScroll 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.
