PQLSF(3g) — Subroutines

Name

PQLSF − Returns light source information.

Operating States: PHOP, ∗, ∗, ∗
PHIGS PLUS function

Old Syntax

DQELSF (WTYPE, N, ERRIND, NLIGHT, LIGHT, MAXSIM, NPLSI)

Argument         Data Type     Access   Description
---------------------------------------------------------------------------
WTYPE            Integer       Read     Workstation type
N                Integer       Read     List element requested
ERRIND           Integer       Write    Error indicator
NLIGHT           Integer       Write    Number of available light source
                                        types
LIGHT            Integer       Write    Light source type
MAXSIM           Integer       Write    Maximum number of simultaneous
                                        lights
NPLSI            Integer       Write    Number of predefined light source
                                        indexes
---------------------------------------------------------------------------

New Syntax

PQLSF (WTYPE, N, ERRIND, NLSTYP, LSTYP, MSNALS, NPLSI)

Argument         Data Type     Access   Description
---------------------------------------------------------------------------
WTYPE            Integer       Read     Workstation type
N                Integer       Read     List element requested
ERRIND           Integer       Write    Error indicator
NLSTYP           Integer       Write    Number of available light source
                                        types
LSTYP            Integer       Write    Light source type
MSNALS           Integer       Write    Maximum number of simultaneous
                                        lights
NPLSI            Integer       Write    Number of predefined light source
                                        indexes
---------------------------------------------------------------------------

Constants

Defined Argument     Constant      Description
---------------------------------------------------------------------------
LSTYP                PAMB          Ambient light
                     PDIRE         Infinite (directional) light
                     PPOSI         Positional light
                     PSPOT         Spot light
---------------------------------------------------------------------------

Description

PQLSF returns values for the following:

•Maximum number of light source table entries

•Number of predefined light source indexes

•List of light source types supported

•Maximum number of simultaneously active nonambient light source table entries

•Total number of light source types supported