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Control.readme
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1986-11-21
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CONTROL
Format: Control
Template:
Purpose: To intercept graphic prints to the printer.device.
Specification:
Control allows the user to intercept graphic print calls to
the printer.device, and modify the actual variables sent to
the printer.device. Control allows modification of all
sizes and flags which control the details of the graphic print.
Control may be used from either CLI or from Workbench. While in
operation, Control waits for any call to do graphic printing;
it then brings up a requester which allows the user to modify
the parameters. Control executes until either it receives
a control-C (either by the BREAK command or if not RUN
by typing control-C in the CLI window) or by executing Control again.
CMap, Mode, SrcX, SrcY, SrcW, SrcH, DCol and DRow are the parameters
to the DumpRPort command of the printer device. The two digit codes
in rectangular boxes are the flag bits for the io_Special parameter of
the DumpRPort command. A brief description follows:
Code Meaning
---- -------
NP NOPRINT compute and return print size, don't print
TM TRUSTME don't reset on gfx prints
NF NOFORMFEED don't eject paper on gfx prints
D4 DENSITY4 bit select density 4 bit (obsolete)
D2 DENSITY2 bit select density 2 bit (obsolete)
D1 DENSITY1 bit select density 1 bit (obsolete)
AS ASPECT ensure correct aspect ratio
CE CENTER center image on paper
FR FRACROWS DestRows is fraction of FULLROWS
FC FRACCOLS DestCols is fraction of FULLCOLS
FR FULLROWS make DestRows maximum possible
FC FULLCOLS make DestCols maximum possible
MR MILROWS DestRows specified in 1/1000"
MC MILCOLS DestCols specified in 1/1000"
Examples:
1> run control
[CLI 1]
1> graphicdump
1> break 2
SEE ALSO:
The Rom Kernal Manual for details of the printer.device, its use,
parameters, and flags.