Graphics, Double Density
ASCII Code ESC L n1 n2 d1 d2...dk
1B 4C n1 n2 d1 d2...dk
Hex Code
Dec Code
27 76 n1 n2 d1 d2...dk
Purpose
Selects double density bit image graphics of 120 dpi
horizontally and 72 dpi vertically.
Expression CHR$(27);"L";CHR$( n1 );CHR$( n2 );" DATA "
Where:
n1 = 0 through 255
n2 = 0 through 31
n1 + (256 x n2 ) defines the number of data bytes to follow.
d1 d2...dk = ASCII characters for the dot pattern bytes.
NOTE: d1 d2...dk (DATA ) consists of 8-bit dot columns, with the MSB at the
top and "1" bits producing dots. (0 < = d < = 255)
Comment
Double density printing reduces print speed.
Example
The following example produces double density bit-image
graphics of the pattern used in the standard density bit-image
mode example. The amount of data must be doubled for double
density (the data is used 54 times rather than 27).
Graphics, Double Density
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