Texas Instruments TI-89 Developer's Guide

Appendix A: System Routines — Display
439
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
Parms2D
Declaration:
void
Parms2D
(EStackIndex
i
, WORD *
Width
, WORD *
Depth
,
WORD *
Height
)
Category(ies):
Display
Description:
Return the width, depth, and height of a 2D expression.
Inputs:
i
— EStackIndex of 2D expression (output of
Parse2DExpr
or
Parse2DMultiExpr
).
Outputs:
Width
— Pointer to width in pixels.
Depth
— Pointer to depth in pixels.
Height
— Pointer to height in pixels.
Note that
Depth
+
Height
is equal to the total height of the 2D expression.
Every 2D expression has an imaginary center line above which is the
height and below (counting the line) is the depth.
Assumptions:
Assumes the input came from
Parse2DExpr
or
Parse2DMultiExpr
.
Side Effects:
None
Availability:
All versions of the TI
-
89 / TI
-
92 Plus.
TI
-
89 / TI
-
92 Plus
Differences:
None
See Also: Parse2DExpr, Parse2DMultiExpr
Example:
See
Print2DExpr
.

Texas Instruments TI-89 Specifications

General

Display size (HxV)	100 x 160 mm
Memory type	639K FLASH ROM, 188K bytes RAM
Compatible operating systems	Operating System 2.09
Battery type	AAA