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Graphics
Read Reset Status (Parameter= 10)
You can determine whether or not the terminal has executed a full reset (or Power On) since the
last time reset status was checked. This tells whether or not you need to reestablish terminal
settings or images before resuming terminal functions. An additional seven bytes are returned
but are not used.
Read Reset Status Request:
Ec
*
5
1 0
A
The terminal responds:
<reset> , <b1 >, <b2> , <b3>, <b4> , <bS>, <b6>, <b7> <termi na tor>
where:
<res e t >
=
0 No full reset since last check
or
1 Terminal has been reset
<
b 1 >-
<
b 7> =
0 (not used)
Read Area Shading Capability (Parameter= 11)
The area shading capability of the terminal can be read. These are fixed for the terminal.
Read Area Shading Request:
Ec
*
5
11
A
The terminal always responds:
<2,8,8<terminator>
The
((2"
indicates that the area shading can be a polygon. The first
((8"
indicates that the
shading pattern is 8 units wide. The second
((8"
indicates that the shading pattern is 8 units
high.
Read Graphics Modification Capabilities (Parameter= 12)
You can read the terminal's dynamic graphics capabilities. This is the ability of the terminal to
change selected portions of the display. These are fixed for the terminal.
Read Graphics Modification Request:
Ec
*
5
1 2
A
The terminal always responds:
1, 1 <t e r mi na tor>
These two bytes indicate that the terminal has selective erase and complement capabilities.
Any Other Parameter
Any other parameter that has not been assigned causes the terminal ID to be returned. This is
to prevent an invalid status request from tying up the requesting computer while waiting for a
response.
The terminal responds:
2620A <terminator>
D-61
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