SGS_DEFCH

Define valid choice keys

ACTION:
Defines the valid keys for choice input from the command terminal keyboard (SGS choice device type 0).
CALL:
SGS_DEFCH(chostr)
INPUT PARAMETERS:

chostr

C

A character expression of up to 49 characters which defines the keys that are valid for choice input. The order of the characters determines the number returned when a key is pressed. The first key in the string will return 1, the second 2, etc. If a key which has not been defined is pressed, a 0 is returned.

GKS EFFECT:
None