Texas Instruments TI-89 - Winscrollh

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Appendix A: System Routines — Windows
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
WinScrollH
Declaration:
void
WinScrollH
(WINDOW *
w
, const WIN_RECT *
wRegion
,
SWORD
numCols
)
Category(ies):
Windows
Description:
Scroll a region of a window horizontally. Blank areas are filled with the
current background for the window. If
numCols
< 0 then scroll right
otherwise scroll left. Note that if the region to be scrolled starts on a byte
boundary (left-most pixel), then the region will scroll much faster.
Inputs:
w
— WINDOW struct of a previously opened window.
wRegion
— WINDOW region to scroll.
numCols
— Number of columns to scroll (negative scrolls right, positive
left).
Outputs:
None
Assumptions:
Background set with
WinBackground
.
Side Effects:
None
Availability:
All versions of the TI
-
89 / TI
-
92 Plus.
TI
-
89 / TI
-
92 Plus
Differences:
None
See Also: WinBackground, WinScrollV
(continued)