Texas Instruments TI-83 Plus Manual page 84

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Use 5x7 large font:
The default is to use the small variable width font. Set the below flag to use
the large 5x7 font.
Erase the line below the character being displayed:
This applies to the small variable width font only. Do not set this flag if the
row of pixels below the character being displayed is off of the display.
Display an application defined custom character:
This option is only used with the UserPutMap routine.
All of these settings remain until you change them. Applications need to
manage their state, if they are changed.
Entry Points
–
VPutMap
VPutS
VPutSN
VPutBlank
DispOP1A
SStringLength
SFont_Len
UserPutMap
Note: The VPutS and VPutSN routines can be used without first copying strings to RAM by
Note: The space character for the small font is only one pixel wide. Applications may want to
TI-83 Plus Developer Guide
fracDrawLFont, (IY + fontFlags); default = 0
textEraseBelow, (IY + textFlags); default = 0.
customFont, (IY + fontFlags)
Displays either a small variable width or large 5x7 character
at the current pen location and updates penCol.
Displays a zero (0) terminated string, using either small or
large characters and updates penCol.
Displays a string whose length is the first byte using either
small or large characters and updates penCol.
Displays a space character at the current pen location using
the small or large font and updates penCol.
Rounds a floating-point number to the current fix setting and
display it at the current pen location. Uses either the small or
large characters and updates penCol.
Returns the width in pixels of a string using the small font.
Returns the width in pixels of a character using the small
font.
Displays a character defined by an application at the current
pen location and updates penCol.
coding a local version of the routines in the application. See the System Routine
Documentation for the source code to these routines.
use two space characters to separate words, in strings to be displayed using the small
font.
Chapter 2: TI-83 Plus Specific Information
Third Release May 28, 2002