graPHIGS Programming Interface: Subroutine Reference

The graPHIGS Programming Interface : Subroutine Reference

GPQLTF - Inquire Linetype Facilities

GPQLTF (wstype, errind, sections, maxlen, unit, npred, available)

Note:

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

Purpose

Use GPQLTF to inquire the line pattern facilities for the specified workstation type.

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 output parameter available is set to a value of one, then the values returned in the other output parameters are unpredictable. 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.

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
35: WORKSTATION HAS ONLY INPUT CAPABILITIES
548: SPECIFIED WORKSTATION TYPE CANNOT BE LOADED

sections -- returned by the graPHIGS API, fullword integer

Maximum number of sections that a line pattern can have.

maxlen -- returned by the graPHIGS API, fullword integer

Maximum length of a line pattern. The sum of the lengths of all sections in a line pattern must be less than this value.

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

Size of the line pattern unit. All line pattern definitions are specified as multiples of this value.

npred -- returned by the graPHIGS API, fullword integer

Number of predefined entries of the line pattern table.

available -- returned by the graPHIGS API, fullword integer

Availability of the Set Linetype Representation (GPLTR) subroutine and Inquire Linetype Representation (GPQLTR) subroutine (1=NOT_AVAILABLE, 2=BOTH_AVAILABLE, 3=INQUIRE_ONLY_AVAILABLE, 4=SET_ONLY_AVAILABLE )

Error Codes

None

Related Subroutines

GPLT: Set Linetype
GPLTR: Set Linetype Representation
GPQLTR: Inquire Linetype Representation
GPQRCT: Inquire Realized Connection Type

RCP code

201346049 (X'0C004C01')