Table of Contents
Advertisement
Other considerations
Keep in mind that user-defined characters are stored in RAM,
which is volatile in nature. Whenever the printer power is turned
off, all of the user-defined characters are lost. Likewise, initializ-
ing the printer will clear the user-defined character area. Initializ-
ing can be done with the <ESC> "@" command. Also, your
computer sometimes sends an initialization (INIT) signal. (Some
computers do this each time BASIC is loaded.)
Defining Connecting Characters
Because character definitions include information about the
width of the character, including the space around the character,
you can define characters that connect horizontally. This feature
has a variety of useful applications. You can create: a typeface
with connecting scripts, a single extra-wide character that ex-
ceeds the size limits of a single character, or graphic characters
that can be used as borders.
By defining only two characters (see Figure 5-5), three different
border patterns can be created.
10 '*** User-Defined Character: Chain Borders ***
20 '
30 'Select letter quality
40 LPRINT CHR$(27) "x" CHR$(1);
50 '
60 'Define download character
70 LPRINT CHR$(27) "&" CHR$(0);
80 '
90 'beginning at "=" and ending at ">"
100 LPRINT "=>";
110 '
120 'left margin, # of digits, right margin
130 LPRINT CHR$(O) CHR$(10) CHR$(0);
140 FOR I=1 TO 10*3
150
READ A
LPRINT CHR$(A);
160
170 NEXT
180 LPRINT CHR$(0) CHR$(14) CHR$(0);
190 FOR I=1 TO 14*3
200
READ A
LPRINT CHR$(A);
210
220 NEXT
62
Advertisement
Table of Contents
