graPHIGS Programming Interface: Subroutine Reference

The graPHIGS Programming Interface : Subroutine Reference

GPQNST - Inquire Number of Secondary Triggers

GPQNST (wstype, class, devnum, errind, number)

Note:

This subroutine is a Workstation Description Table (WDT) inquiry. For an overview, see "WDT Inquiries"

Purpose

Use GPQNST to inquire the number of secondary triggers for a specified device for the specified workstation type.

A zero is returned if the specified device has only a primary trigger.

If the information is available, then the graPHIGS API sets the error indicator to zero and returns the values in the output parameter. If the inquired information is unavailable, then the error indicator (errind) contains the error number indicating the reason, and the values returned in the output parameter are unpredictable.

Parameters

wstype -- specified by user, 8-byte character string

Workstation type.

class -- specified by user, fullword integer

Input device class (1=LOCATOR, 2=STROKE, 3=VALUATOR, 4=CHOICE, 5=PICK, 6=STRING )

devnum -- specified by user, fullword integer

Input device number (>=0)

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:

23: SPECIFIED WORKSTATION TYPE DOES NOT EXIST
38: WORKSTATION HAS ONLY OUTPUT CAPABILITIES
140: DEVICE NUMBER < ONE OR DEVICE NOT AVAILABLE
328: INPUT CLASS VALUE IS INVALID
548: SPECIFIED WORKSTATION TYPE CANNOT BE LOADED

number -- returned by the graPHIGS API, fullword integer

Number of secondary triggers for the specified device.

Error Codes

None

Related Subroutines

GPQRCT: Inquire Realized Connection Type

RCP code

201339399 (X'0C003207')