GET CHOICE
CALL SEQUENCE
PGTCH (STAT, CHNR)
OUTPUT PARAMETERS
INTEGER STAT
INTEGER CHNR
ARGUMENTS
- STAT
- Event state.
- POK:
- 1 (OK)
- PNCHOI:
- 2 (NOCHOICE)
- CHNR
- Selected choice.
PHIGS STATE
(PHOP, WSOP, *, *).
EFFECT
Reads a CHOICE event. The CHOICE logical input value is read in the current
event report in the PHIGS state list. It is composed of the
selected choice and of the state after selection when the CHOICE event is
placed in the queue.
Example:
C Event choice
INTEGER ISTAT,CHNR
......
call PGTCH(ISTAT,CHNR)
......
ERRORS
- 3
Ignoring function, function requires state (PHOP, WSOP,*,*)
- 259
- Ignoring function, the input device class of the current input report does
not match the class
SEE ALSO
set choice mode, initialize choice , request choice , sample choice , await
event, flush device events, inquire choice device state, inquire default choice
device state