GQCF

GDDM-GKS V1R1 Programming Guide and Reference

GQCF

GDDM-GKS V1R1 Programming Guide and Reference
SC33-0334-00

Purpose


GQCF	(wtype, errind, ncoli, cola, npci)

APL code	1415
GKS RCP code	X'3800D000' (939577344)

Function: To inquire color facilities.

Inquiry function. Returns values giving the color facilities for a given workstation type, from the workstation description table.

Parameters

wtype (specified by user) (fullword integer)
The workstation type.

errind (returned by GDDM) (fullword integer)
The error indicator.

ncoli (returned by GDDM) (fullword integer)
The number of colors or intensities (0,2 ... n).

cola (returned by GDDM) (fullword integer)
The availability of color. The possible values are:

0 (GMONOC): Monochrome
1 (GCOLOR): Color

npci (returned by GDDM) (fullword integer)
The number of predefined color indexes (2 ... n).

Operating states

GKOP, WSOP, WSAC, SGOP

Related functions

Set color representation (GSCR)

Description

If the inquired information is available, it is returned as output, and errind is returned as 0 (zero). If the inquired information is not available, all output is invalid, and errind returns an error indicator.

If the number of available colors or intensities is returned as 0 (zero), the workstation supports a continuous range of colors or intensities.

Principal errors

8: GKS not in proper state: GKS shall be in one of the states GKOP, WSOP, WSAC, or SGOP
22: Specified workstation type is invalid
23: Specified workstation type does not exist
39: Specified workstation is neither of category OUTPUT nor of category OUTIN

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