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.TH "INQUIRE HLHSR MODE" 3P "29 February 1991"
.SH NAME
INQUIRE HLHSR MODE \- inquire a workstation's hidden line/hidden surface removal mode
.IX "HLHSR" "INQUIRE HLHSR MODE"
.IX "Z-buffering" "INQUIRE HLHSR MODE"
.IX "Hidden Line/Hidden Surface Removal" "INQUIRE HLHSR MODE"
.SH SYNOPSIS
.SS C Syntax
.ft B
.ta 1.25i 3i
.nf
void
pinq_hlhsr_mode ( ws, error_ind, state, cur_mode, req_mode )
Pint	ws;	\fIworkstation identifier\fP
Pint	*error_ind;	\fI\s-2OUT\s+2 error indicator\fP
Pupd_st	*state;	\fI\s-2OUT HLHSR\s+2 update state\fP
Pint	*cur_mode;	\fI\s-2OUT\s+2 current \s-2HLHSR\s+2 mode\fP
Pint	*req_mode;	\fI\s-2OUT\s+2 requested \s-2HLHSR\s+2 mode\fP
.fi
.ft R
.SS Required PHIGS Operating States
(PHOP, WSOP, *, *)
.SH DESCRIPTION
.SS Purpose
Use \s-2INQUIRE HLHSR MODE\s+2 to determine the current
\s-2HLHSR\s+2 (hidden line and hidden surface removal) mode
from a specified PHIGS workstation state list.
.LP
.SS C Input Parameters
.IP \fIws\fP
The \fIworkstation identifier\fP of the workstation whose workstation state list
is queried.
.SS C Output Parameters
.IP \fIerr_ind\fP
A pointer to the location to store the error number of any error
detected by this function.
.IP \fIstate\fP
A pointer to a location in which the system returns the
\fI\s-2HLHSR\s+2 update state\fP.  Pupd_st is one of the values
\s-2PUPD_NOT_PEND\s+2 (\fINot Pending\fP) or \s-2PUPD_PEND\s+2 (\fIPending\fP).
.IP \fIcur_mode\fP
A pointer to a location in which the system returns the current
\fI\s-2HLHSR\s+2 mode\fP.
.IP \fIreq_mode\fP
A pointer to a location in which the system returns the \fIrequested
\s-2HLHSR\s+2 mode\fP. The requested mode can differ from the current mode
if the update state is
.SM PENDING.
.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 057
Ignoring function, specified workstation is of category \s-2MI\s+2
.SH SEE ALSO
.nf
.IP
.ta 0.5i
.SM "SET HLHSR MODE (3P)"
.SM "SET HLHSR IDENTIFIER (3P)"
.SM "INQUIRE HLHSR FACILITIES (3P)"
.fi