PQVLS(3g) — Subroutines

Name

PQVLS − Returns information about the valuator device state.

Operating States: PHOP, WSOP, ∗, ∗
PHIGS standard function

Old Syntax

PQVLS (WKID, VLDNR, MLDR, ERRIND, MODE, ESW, IVAL, PET, EAREA, LOVAL,
HIVAL, LDR, DATREC)

Argument          Data Type      Access    Description
---------------------------------------------------------------------------
WKID              Integer        Read      Workstation identifier
VLDNR             Integer        Read      Valuator device number
MLDR              Integer        Read      Dimension of the data record
                                           array
ERRIND            Integer        Write     Error indicator
MODE              Integer        Write     Operating mode
ESW               Integer        Write     Echo switch
IVAL              Integer        Write     Initial value
PET               Integer        Write     Prompt and echo type
EAREA(4)          Array of       Write     Echo area, in device coordinates
                  reals                    (XMIN, XMAX, YMIN, YMAX)
LOVAL, HIVAL      Real           Write     Minimum and maximum value
LDR               Integer        Write     Number of array elements used in
                                           a data record
DATREC(MLDR)      Character ∗80 Write     Data record
---------------------------------------------------------------------------

New Syntax

PQVLS (WKID, VLDNR, MLDR, ERRIND, MODE, ESW, IVAL, PET, EAREA,
LDR, DATREC)

Argument          Data Type      Access    Description
---------------------------------------------------------------------------
WKID              Integer        Read      Workstation identifier
VLDNR             Integer        Read      Valuator device number
MLDR              Integer        Read      Dimension of the data record
                                           array
ERRIND            Integer        Write     Error indicator
MODE              Integer        Write     Operating mode
ESW               Integer        Write     Echo switch
IVAL              Integer        Write     Initial value
PET               Integer        Write     Prompt and echo type
EAREA(4)          Array of       Write     Echo area, in device coordinates
                  reals                    (XMIN, XMAX, YMIN, YMAX)
LDR               Integer        Write     Number of array elements used in
                                           a data record
DATREC(MLDR)      Character ∗80 Write     Data record
---------------------------------------------------------------------------

Constants

Defined Argument     Constant     Description
---------------------------------------------------------------------------
MODE                 PREQU        Request mode
                     PSAMPL       Sample mode
                     PEVENT       Event mode
ESW                  PNECHO       Echo disabled
                     PECHO        Echo enabled
---------------------------------------------------------------------------

Description

PQVLS queries the workstation state list and returns values for the following:

•Operating mode

•Echo switch

•Initial valuator value

•Prompt and echo type

•Echo area in device coordinates

•Valuator data record

See Chapter 9 for information on building data records for initializing input devices.