graPHIGS Programming Interface: Subroutine Reference

The graPHIGS Programming Interface : Subroutine Reference

GPQLTR - Inquire Linetype Representation

GPQLTR (wsid, ltype, errind, number, pattern)

Note:

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

Purpose

Use GPQLTR to inquire the current line pattern in the specified entry in the line type table of the specified workstation.

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

Parameters

wsid -- specified by user, fullword integer

Workstation identifier.

ltype -- specified by user, fullword integer

Line type table index (>=1)

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
35: WORKSTATION HAS ONLY INPUT CAPABILITIES
63: LINETYPE VALUE < ONE
64: SPECIFIED LINETYPE NOT AVAILABLE ON WORKSTATION
274: THIS FUNCTION IS NOT SUPPORTED BY THE WORKSTATION

number -- returned by the graPHIGS API, fullword integer

Number of sections in the line pattern.

pattern -- returned by the graPHIGS API, array of fullword integers

List of the length of each section in the line pattern. The entries of the array alternate between SOLID and VOID sections with the first entry being SOLID Each length is specified in terms of a multiple of the minimum size section for the workstation. The application must supply storage for this parameter that is large enough to contain the maximum number of sections that this workstation supports.

Error Codes

None

Related Subroutines

GPLTR: Set Linetype Representation
GPQLTF: Inquire Linetype Facilities

RCP code

201339151 (X'0C00310F')