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.\"##
.\" $XConsortium: p278,v 5.2 94/04/17 20:57:39 rws Exp $
.\"##
.\"##
$XMCOPY
.\"## Copyright (c) 1990, 1991 by Sun Microsystems, Inc.
.\"##
.\"## All Rights Reserved
.\"##
.\"## Permission to use, copy, modify, and distribute this software and its
.\"## documentation for any purpose and without fee is hereby granted,
.\"## provided that the above copyright notice appear in all copies and that
.\"## both that copyright notice and this permission notice appear in
.\"## supporting documentation, and that the name of Sun Microsystems,
.\"## not be used in advertising or publicity
.\"## pertaining to distribution of the software without specific, written
.\"## prior permission.
.\"##
.\"## SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
.\"## INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
.\"## EVENT SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
.\"## CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
.\"## USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
.\"## OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
.\"## PERFORMANCE OF THIS SOFTWARE.
.TH "SAMPLE VALUATOR" 3P "29 February 1991"
.SH NAME
SAMPLE VALUATOR \- sample current measure of a valuator device
.IX "Sample Input Mode" "SAMPLE VALUATOR"
.IX "Input Modes" "SAMPLE VALUATOR"
.IX "Valuator Input Devices" "SAMPLE VALUATOR"
.SH SYNOPSIS
.SS C Syntax
.ft B
.ta 1.25i 3i
.nf
void
psample_val ( ws, dev, value )
Pint ws; \fIworkstation identifier\fP
Pint dev; \fIvaluator device number\fP
Pfloat *value; \fI\s-2OUT\s+2 value\fP
.fi
.ft R
.SS Required PHIGS Operating States
(PHOP, WSOP, *, *)
.SH DESCRIPTION
.SS Purpose
Use \s-2SAMPLE VALUATOR\s+2 to sample the current measure of the specified
valuator device without waiting for input from the operator. The device
must be in \s-2SAMPLE\s+2 mode.
See \s-2SET VALUATOR MODE\s+2 and \s-2INITIALIZE VALUATOR\s+2 for more information.
.SS C Input Parameters
.IP \fIws\fP
Workstation identifier. An integer specifying the workstation with which
the specified valuator device is associated.
.IP \fIdev\fP
The device number of the valuator device to be sampled.
See the \fIAvailable Devices\fP section of \s-2INITIALIZE VALUATOR\s+2
for a description of the available devices.
.SS C Output Parameter
.IP \fIvalue\fP
A pointer to a Pfloat variable in which to store the \s-2VALUATOR\s+2 measure.
.SS Execution
\s-2SAMPLE VALUATOR\s+2 samples the specified valuator device. The
device must be in \s-2SAMPLE\s+2 mode.
See \s-2SET VALUATOR MODE\s+2 and \s-2INITIALIZE VALUATOR\s+2 for more
information.
.LP
When a device is set to \s-2SAMPLE\s+2 mode, a measure process is created
for the device and the device is activated. When \s-2SAMPLE VALUATOR\s+2 is
called, the current value of the measure process for the specified device
is retrieved without waiting for further input from the operator.
.SH ERRORS
.IP 003
Ignoring function, function requires state (\s-2PHOP, WSOP, *, *\s+2)
.IP 054
Ignoring function, the specified workstation is not open
.IP 061
Ignoring function, specified workstation is neither of category \s-2INPUT\s+2
nor of category \s-2OUTIN\s+2
.IP 250
Ignoring function, the specified device is not available
on the specified workstation
.IP 252
Ignoring function, the function requires the input device to be in \s-2SAMPLE\s+2 mode
.SH SEE ALSO
.nf
.IP
.ta 0.5i
.SM "SET VALUATOR MODE (3P)"
.SM "INITIALIZE VALUATOR 3 (3P)"
.SM "REQUEST VALUATOR (3P)"
.SM "GET VALUATOR (3P)"
.SM "INQUIRE VALUATOR DEVICE STATE (3P)"
.fi
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