<= R0 = bits 0-15 driver's version number * 100
bits 16-31 printer number
R1 = x resolution of driven printer (DPI)
R2 = y resolution of driven printer (DPI)
R3 = features word
R4 = pointer to printer name (max 20 chars, null terminated)
R5 = x halftone resolution in repeats/inch
R6 = y halftone resolution in repeats/inch
R7 = printer driver specific number (as set by PDriver_SetInfo, default is 0)
This SWI describes the capabilities of the printer. If a job is selected they are the values in force from when it was first selected, else they are the values that would be used on a new job. If halftoning is not used then R5=R2,R6=R3.
See PRM 3, page 602.
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