4
ESim v5.12 for EasyCoder PD4—Programmer’s Reference Manual
Chapter —Commands
GRP – Reply Graphics from Printer Buffer
Description
This command is used to dump part of the printer buffer back to
the host via the serial port.
Syntax
GRPp
1
,p
2
,p
3
,p
4
[,p
5
]
Parameters
p
1
X-position in printer dots.
p
2
Y-position in printer dots.
p
3
Number of bytes across the graphic (8 dots = 1 byte).
p
4
Number of dot rows going down the graphic.
p
5
Parameter setting the format of the data. Allowed values are:
B Binary, not inversed
b Binary, inversed (default)
H Hexadecimal, not invesed
h Hexadecinmal, inversed
Remarks
This command is the reverse of
GW
and can be used to verify
that data has been rendered correctly. What part of the print
buffer is sent back to the host is specified by the the parameters
p
1
-p
4
above, and the format of this data by p
5
.
Note:
There is no flow control or handshaking when sending
this data to the host, so use this command only for small areas.
Example
The command
GRP20,10,4,32,h
↵
will give a reply in hexadecimal format like the one shown below.
00 FF FF 00 3F FF FF FE 5F FF FF FE 6F FF FF FE
77 FF FF FE 7B FF FF FE 7D FF FF FE 7E FF FF FE
FF 7F FF FF FF BF FF FF FF DF FF FF FF EF FF FF
FF F7 FF FF FF FB FF FF FF FD FF FF FF FE FF FF
FF FF 7F FF FF FF BF FF FF FF DF FF FF FF EF FF
FF FF F7 FF FF FF FB FF FF FF FD FF 7F FF FE FE
7F FF FF 7E 7F FF FF BE 7F FF FF DE 7F FF FF EE
7F FF FF F6 7F FF FF FA 7F FF FF FC 00 00 00 00
Содержание EasyCoder PD4
Страница 1: ...Programmer s Reference Manual ESim v5 12 for EasyCoder PD4 Bar Code Label Printer ...
Страница 22: ...16 ESim v5 12 for EasyCoder PD4 Programmer s Reference Manual Chapter 3 Setting Up the Printer ...
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