graPHIGS Programming Interface: Subroutine Reference

The graPHIGS Programming Interface : Subroutine Reference

GPQCCH - Inquire Color Table Characteristics

GPQCCH (wsid, ctid, errind, model, length)

Note:

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

Purpose

Use GPQCCH to inquire the current characteristics of the specified color table on the 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.

ctid -- specified by user, fullword integer

Color table identifier (-1=DISPLAY_COLOR_TABLE_MODIFIABLE, 0=RENDERING_COLOR_TABLE_MODIFIABLE )

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
284: COLOR TABLE IDENTIFIER DOES NOT EXIST

model -- returned by the graPHIGS API, fullword integer

Color model (1=RGB, 2=HSV, 3=CMY, 4=CIELUV )

length -- returned by the graPHIGS API, fullword integer

Length of the color table in log₂

Error Codes

None

Related Subroutines

GPQCID: Inquire List of Color Table Identifiers
GPXCR: Set Extended Color Representation

RCP code

201339144 (X'0C003108')