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The graPHIGS Programming Interface : Subroutine Reference
GPPKAP - Set Pick Aperture
| GPPKAP
(wsid,
device,
size) |
Purpose
Use
GPPKAP
to set the pick aperture size for the specified pick device.
The aperture is a square the length of whose side is specified
by the
size parameter in Device Coordinates (DC)
Note:
The pick device must be in Request mode.
Parameters
wsid -- specified by user, fullword integer
Workstation identifier of pick device.
device -- specified by user, fullword integer
Pick device number (>=1)
size -- specified by user, short floating-point number (DC)
Aperture size (>=0)
This is specified as the length of a side
of a square in Device Coordinates.
Error Codes
- 25
- SPECIFIED WORKSTATION DOES NOT EXIST
- 38
- WORKSTATION HAS ONLY OUTPUT CAPABILITIES
- 140
- DEVICE NUMBER < ONE OR DEVICE NOT AVAILABLE
- 141
- INPUT DEVICE NOT IN CORRECT MODE
- 554
- PICK APERTURE < ZERO
Related Subroutines
- GPPKMO
- Set Pick Mode
- GPQLI
- Inquire List of Logical Input Devices
RCP code
201337348
(X'0C002A04')
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