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.TH "INQUIRE SYSTEM STATE VALUE" 3P "29 February 1991"
.SH NAME
INQUIRE SYSTEM STATE VALUE \- inquire state value of PHIGS
.IX "Operating States" "INQUIRE SYSTEM STATE VALUE"
.SH SYNOPSIS
.SS C Syntax
.ft B
.ta 1.25i 3i
.nf
void
pinq_sys_st ( sys_state )
Psys_st	*sys_state;	\fIOUT the system state\fP
.fi
.ft R
.SS Required PHIGS Operating States
(*, *, *, *)
.SH DESCRIPTION
.SS Purpose
Use \s-2INQUIRE SYSTEM STATE VALUE\s+2 to determine the current state of
the PHIGS system. The state value may be either \fI\s-2PHIGS\s+2 open\fP (\s-2PHOP\s+2)
or \fI\s-2PHIGS\s+2 closed\fP (\s-2PHCL\s+2).
.LP
\s-2PHIGS\s+2 must be opened with the \s-2OPEN PHIGS\s+2 subroutine before any operations can be performed with the \s-2PHIGS\s+2 subroutines.
This function may be used to verify that \s-2OPEN PHIGS\s+2 was
successful before performing additional \s-2PHIGS\s+2 operations.
.SS C Output Parameters
.IP \fIsys_state \fP
A pointer to a Psys_st enumerated variable in which the current state
of the \s-2PHIGS\s+2 system is returned.
Values for Psys_st are defined in phigs.h as follows:
.nf
.ta .5i +1.25i
.sp .4
typdef enum {
.sp .2
	PSYS_ST_PHCL,	/* \s-2PHIGS\s+2 closed */
	PSYS_ST_PHOP	/* \s-2PHIGS\s+2 open */
.sp .2
} Psys_st;
.fi
.SH ERRORS
.IP 
None
.SH SEE ALSO
.nf
.IP
.ta 0.5i
.SM "OPEN PHIGS (3P)"
.SM "CLOSE PHIGS (3P)"
.SM "EMERGENCY CLOSE PHIGS (3P)"
.SM "INQUIRE ARCHIVE STATE VALUE (3P)"
.SM "INQUIRE STRUCTURE STATE VALUE (3P)"
.SM "INQUIRE WORKSTATION STATE VALUE (3P)"
.fi