Intermec VT220/ANSI, Programmer'S Reference Manual

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SECTION 8
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Programming
VT220/ANSI Terminal Emulation Programmer’s Reference Guide 8-37
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NOTE: The host system can also define the function keys.
UDK Memory Space
There are 256 bytes of memory space available for the 15
UDKs. Space is supplied on a first come, first serve basis.
When the 256 bytes are full you cannot define any more
keys until you clear some of the memory space. Three ways
that you can clear space are:
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Redefine one or more UDKs by using a DECUDK con-
trol string.
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Clear one or more UDKs by using a DECUDK control
string.
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Clear all UDKs with a wireless station power-up or
hard terminal reset (RIS) operation.
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NOTE: All UDK key definitions are lost when wireless station power is lost.
Programming UDKs
Use the following device control string format to down-line
load definitions for UDKs.
DCS Pc ; Pl | Ky1/St1;
¼
Kyn/Stn ST
Device control
string introducer
Clear and lock
parameters
Final
character
Key definition string String
terminator
Each string component is described on the following pages.