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PRQVL(3g)  —  Subroutines

Name

PRQVL − Prompts for input using the valuator-class logical input device specified. 

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

Syntax

PRQVL (WKID, VLDNR, STAT, VAL)

Argument        Data Type       Access   Description
---------------------------------------------------------------------------
WKID            Integer         Read     Workstation identifier
VLDNR           Integer         Read     Valuator device number
STAT            Integer         Write    Status
VAL             Real            Write    Value
---------------------------------------------------------------------------

Constants

Defined Argument     Constant       Description
---------------------------------------------------------------------------
STAT                 PNONE          User performed a break action.
                     POK            User entered a value.
---------------------------------------------------------------------------

Description

PRQVL prompts for input using the valuator-class logical input device specified by the device number and the workstation identifier.  If the input status is POK, this function returns the value (a real number). 

See Also

PGTVL
PINVL
PSMVL
PSVLM

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