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Apex PDT Technical Reference Manual 3 Hardware Configuration
COAM30002 Rev. 2.00 8/13/02
3-7
Font Height Adjustments
As shown in the previous section, while in Mode 0 or 1 the default
font size is 16
×
8. Within these modes, application programmers
can change the font height by using BIOS interrupt 10h, producing
a 16
×
16 high font, thereby changing the viewable area to 15
columns by 10 rows. While in Mode 2 or 3, the default font is
8
×
8. Using BIOS interrupt 10h to change the font height in these
modes produces a font size of 8
×
16 high, thereby changing the
viewable area to 30 columns by 10 rows.
Additional resources available to programmers for performing font
and screen changes are as follows:
q
The [fontsize.exe] utility program (preloaded into the PDT).
With this utility, programmers can select any of the four font
sizes previously described. Refer to the Utility Program
section of this manual for detailed information on this program.
q Refer to Chapter 6 Utility Programs, BCDriver Programming
section (p. 6-11) for low-level API information.
q Refer to Chapter 7 for high-level API information.