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The graPHIGS Programming Interface : Subroutine Reference
GPRQVL - Request Valuator
| GPRQVL
(wsid,
device,
status,
value) |
Purpose
Use
GPRQVL to have the graPHIGS API execute a
request to the specified valuator device.
The value
returned is in the range specified
by your application through
the Initialize Valuator
(GPINVL)
subroutine.
Parameters
wsid -- specified by user, fullword integer
Workstation identifier.
device -- specified by user, fullword integer
Valuator device number (>=1)
status -- returned by the graPHIGS API, fullword integer
Status of valuator input
(1=NONE, 2=OK
)
value -- returned by the graPHIGS API,
short floating-point number
Value.
Error Codes
- 25
- SPECIFIED WORKSTATION DOES NOT EXIST
- 140
- DEVICE NUMBER < ONE OR DEVICE NOT AVAILABLE
- 141
- INPUT DEVICE NOT IN CORRECT MODE
- 168
- INPUT DEVICE IS CURRENTLY OWNED BY ANOTHER CONNECTION
Related Subroutines
- GPINVL
- Initialize Valuator
- GPQLI
- Inquire List of Logical Input Devices
- GPVLMO
- Set Valuator Mode
RCP code
201335561
(X'0C002309')
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