scodeScroll (SHORT)

Scroll-bar code.

This is one of the SB_* scroll-bar codes as defined in WM_HSCROLL (in Horizontal Scroll Bars).

SB_LINELEFT

Sent if the operator clicks the left arrow of the scroll bar, or presses the VK_LEFT key.
SB_LINERIGHT
Sent if the operator clicks the right arrow of the scroll bar, or presses the VK_RIGHT key.
SB_PAGELEFT
Sent if the operator clicks the area to the left of the slider, or presses the VK_PAGELEFT key.
SB_PAGERIGHT
Sent if the operator clicks the area to the right of the slider, or presses the VK_PAGERIGHT key.
SB_SLIDERPOSITION
Sent to indicate the final position of the slider. sposScroll contains the final position of the slider.
SB_SLIDERTRACK
Sent every time the slider position changes if the operator moves the scroll bar slider with the pointer device.
SB_ENDSCROLL
Sent when the operator has finished scrolling, but only if the operator has not been doing any absolute slider positioning.

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