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WM_HSCROLL
This message is sent to a window when its horizontal scroll bar is clicked.
Parameters
wParam can be one of the following :
SB_LINEDOWN - user clicked on the right arrow of the scrollbar.
SB_LINEUP - user clicked on the left arrow of the scrollbar.
SB_PAGEDOWN - user clicked to the right of the thumb position.
SB_PAGEUP - user clicked to the left of the thumb position.
SB_THUMBTRACK - user dragged the thumb to a new position.
SB_THUMBPOSITION - the user finished dragging the thumb
SB_ENDSCROLL - the user released the mouse button on one of the
scrollbar arrows
HIWORD(lParam) is the handle of the scrollbar.
LOWORD(lParam) is the current thumb position if wParam is SB_THUMBTRACK,
SB_THUMBPOSITION, or SB_ENDSCROLL, and for all other values of
wParam, is not used and is set to 0.
This page created by ng2html v1.05, the Norton guide to HTML conversion utility.
Written by Dave Pearson