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The graPHIGS Programming Interface : Subroutine Reference

GPQPKA - Inquire Pick Aperture

GPQPKA (wsid, device, errind, size)

Note:

This subroutine is a Workstation State List (WSL) inquiry. For an overview, see "WSL Inquiries"

Purpose

Use GPQPKA to inquire the current size of the pick aperture for the specified pick device on the specified workstation.

The pick aperture is returned as the length of a side of a square in Device Coordinates (DC)

Parameters

wsid -- specified by user, fullword integer

Workstation identifier.

device -- specified by user, fullword integer

Pick device number.

errind -- returned by the graPHIGS API, fullword integer

Error indicator. If the error indicator is zero, the request has been completed. Otherwise, one of the following errors exists:
25
SPECIFIED WORKSTATION DOES NOT EXIST
37
WORKSTATION IS NOT OF CATEGORY OUTIN
140
DEVICE NUMBER < ONE OR DEVICE NOT AVAILABLE

size -- returned by the graPHIGS API, short floating-point number (DC)

Aperture size. This is specified as the length of a side of a square in Device Coordinates (DC)

Error Codes

None

Related Subroutines

None

RCP code

201338888 (X'0C003008')


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