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cmd_pxlhorz |
Function (ROM Call 0x378) |
Executes TI-Basic 'PxlHorz' command.
cmd_pxlhorz displays the Graph Screen and draws, erases, or inverts a
horizontal line on it.
The parameters y and drawmode should point to two integer items
on the expression stack, which represent respectively the y coordinate of the
line and the drawing mode. The y coordinate is an absolute pixel coordinate
(independent of the current window settings), where 0 is the top border of
the Graph Screen, excluding the menu area. The parameter drawmode
should point to one of the following values:
1 | Draws the line. |
0 | Erases the line. |
-1 | Inverts pixels along the line. |
See also cmd_linehorz, which uses
window-relative coordinates, and
DrawLine (or
DrawClipLine) for much faster
low-level line drawing (independently of the Graph Screen).
Uses: GetValue, gr_active, GraphActivate, MakeWinRect, WinAttr, WinLine
See also: cmd_linehorz, DrawLine, DrawClipLine, cmd_pxlvert, cmd_pxlline