graPHIGS Programming Interface: Subroutine Reference

The graPHIGS Programming Interface : Subroutine Reference

GPQPMF - Inquire Polymarker Facilities

GPQPMF (wstype, start, number, errind, ntype, mtype, nsize, size, minms, maxms, npred)

Note:

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

Purpose

Use GPQPMF to inquire the polymarker facilities for the specified workstation type.

The graPHIGS API returns data indicating the total number of available marker types and their identifiers (ntype[default] the nominal (size), minimum (minms), and maximum (maxms) marker sizes; and the number of predefined polymarker bundle table indexes for the specified workstation type (npred) If the number of available marker sizes is returned as zero, then the workstation supports a continuous range of marker sizes.

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 error indicator is 543 (the start value exceeds the extent of the available data), then only the total number (totnum) parameter is set. 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.

start -- specified by user, fullword integer

Starting member of the list of marker types (>=1)

number -- specified by user, fullword integer

Number of polymarker types requested (>=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
35: WORKSTATION HAS ONLY INPUT CAPABILITIES
538: START VALUE < ONE
539: REQUESTED NUMBER < ZERO
543: START EXCEEDS DATA EXTENT. TOTAL NUMBER AVAILABLE RETURNED
548: SPECIFIED WORKSTATION TYPE CANNOT BE LOADED

ntype -- returned by the graPHIGS API, fullword integer

Total number of available marker types.

mtype -- returned by the graPHIGS API, array of fullword integers.

List of available maker types in the workstation's available marker type table. The table size and specific entries supported are workstation dependent. The default marker type table for supported entries is defined with the following marker types: (1=DOT, 2=PLUS_SIGN, 3=ASTERISK, 4=CIRCLE, 5=DIAGONAL_CROSS, 6-n=ASTERISK )

nsize -- returned by the graPHIGS API, fullword integer

Number of available marker sizes. Zero means that the workstation supports a continuous range of marker sizes.

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

Nominal marker size.

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

Minimum marker size.

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

Maximum marker size.

npred -- returned by the graPHIGS API, fullword integer

Number of predefined polymarker bundle table entries.

Error Codes

None

Related Subroutines

GPQRCT: Inquire Realized Connection Type

RCP code

201339655 (X'0C003307')