.\"
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$XMCOPY
.\" Copyright (c) 1990, 1991 by Sun Microsystems, Inc. and the X Consortium.
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.\" 1. Substitute PHIGS Extension function name (in CAPS) for "PNAME" in line be.\"low:
.ds pN INQUIRE PREDEFINED PATTERN REPRESENTATION PLUS
.TH "\*(pN" 3P+ "29 February 1991"
.SH NAME
\*(pN \- 
inquire a predefined extended pattern representation for a
specified workstation type
.IX "PHIGS Extension Functions" "\*(pN"
.IX "Pattern Fill" "INQUIRE PREDEFINED PATTERN REPRESENTATION PLUS"
.IX "Inquiry functions" "INQUIRE PREDEFINED PATTERN REPRESENTATION PLUS"
.SH SYNOPSIS
.SS C Syntax
.ft B
.ta 1.5i 3.5i
.nf
void
pinq_pred_pat_rep_plus ( type, index, store, error_ind, rep )
Pint	type;	\fIworkstation type\fP
Pint	index;	\fIpredefined index\fP
Pstore	store;	\fIhandle to Store object\fP
Pint	*error_ind;	\fIOUT error indicator\fP
Ppat_rep_plus	**rep;	\fIOUT predefined pattern rep\fP
.fi
.ft R
.SS Required PHIGS Operating States
(PHOP, *, *, *)
.SH DESCRIPTION
.SS Purpose
\s-2INQUIRE PREDEFINED PATTERN REPRESENTATION PLUS\s+2
inquires 
a predefined extended pattern representation for a
specified workstation type.
.SS C Input Parameters
Applications using the \s-2C\s+2 binding must create a buffer to be used by this
function as memory space for storing data associated with the device state.
This buffer is passed as the \fIstore\fP argument.  
.LP
The store buffer is a data area managed by \s-2PHIGS\s+2. While the application 
is responsible for creating the inital buffer through a call to \s-2\CREATE STORE\s+2, 
\s-2PHIGS\s+2 manages this area such that there is sufficient memory for the 
specific inquiry. The data record within the store buffer is accessed 
by the pointer pointed to by \fIrep\fR.
.\" All of the following data types are predefined in phigs.h.
.IP \fItype\fP
The workstation type.
.IP \fIindex\fP
Index of the predefined entry to be returned.
.IP \fIstore\fP
The memory buffer \s-2PHIGS\s+2 is to use for storing the information
returned.  
This buffer must exist prior to calling this function (see
\s-2CREATE STORE (3P)\s+2).
.SS C Output Parameters
.IP \fIerror_ind\fP
A pointer to the location to store the error number of any error
detected by this function.
.IP \fIrep\fP
A pointer to a pointer to a Ppat_rep_plus structure that returns the
requested representation.
Ppat_rep_plus is defined in phigs.h as follows:
.nf
.ta .5i +1i +1.25i
.sp .4
typedef struct {
.sp .2
	Pint_size	dims;	/* pattern's dimensions */
	Pint	type;	/* colour type */
	Pcoval	*colr_array;	/* array of colours */
.sp .2
} Ppat_rep_plus;
.sp .4
.fi
Pint_size is definied in phigs.h as follows:
.nf
.ta .5i +1i +1.25i
.sp .4
typedef struct {
.sp .2
	Pint	size_x;
	Pint	size_y;
.sp .2
} Pint_size;
.sp .4
.fi
Pcoval is definied in phigs.h as follows:
.nf
.ta .5i +1i +1.25i
.sp .4
typedef union {
.sp .2
	Pint	ind;	/* index in workstation colour bundle table */
	Pcolr_rep	direct;	/* direct colour components */
.sp .2
} Pcoval;
.sp .4
.fi
.bp
Pcolr_rep is defined in phigs.h as follows:
.ta .5i +1i +1i
.nf
.sp .2
typedef union {
.sp .2
	Prgb	rgb;	/* Red Green Blue colour specification */
	Pcieluv	cieluv;	/* CIE L*U*V* colour specification */
	Phls	hls;	/* Hue Lightness Saturation colour specification */
	Phsv	hsv;	/* Hue Saturation Value colour specification */
	Pdata	unsupp;	/* Colour in unsupported colour model */
.sp .2
} Pcolr_rep;
.sp .2
.fi
.IP
Prgb is defined in phigs.h as follows:
.nf
.ta .5i +1i +1i
.sp .2
typedef struct {
.sp .2
	Pfloat	red;	/* red, hue, etc */
	Pfloat	green;	/* green, saturation, lightness, etc */
	Pfloat	blue;	/* blue, value, saturation, etc */
.sp .2
} Prgb;
.fi
.IP
Pcieluv is defined in phigs.h as follows:
.nf
.ta .5i +1i +1i
.sp .2
typedef struct {
.sp .2
	Pfloat	cieluv_x;	/* x coefficient */
	Pfloat	cieluv_y;	/* y coefficient */
	Pfloat	cieluv_y_lum;	/* y luminance */
.sp .2
} Pcieluv;
.fi
.IP
Phsv is defined in phigs.h as follows:
.nf
.ta .5i +1i +1i
.sp .2
typedef struct {
.sp .2
	Pfloat	hue;	/* hue */
	Pfloat	satur;	/* saturation */
	Pfloat	value;	/* value */
.sp .2
} Phsv;
.fi
.IP
Phls is defined in phigs.h as follows:
.nf
.ta .5i +1i +1i
.sp .2
typedef struct {
.sp .2
	Pfloat	hue;	/* hue */
	Pfloat	lightness;	/* lightness */
	Pfloat	satur;	/* saturation */
.sp .2
} Phls;
.fi
.IP
Pdata is defined in phigs.h as follows:
.nf
.ta .5i +1i +1i
.sp .2
typedef struct {
.sp .2
	size_t	size;	/* size of data */	
	char	*data	/*pointer to data */
.sp .2
} Pdata;
.fi
.SS Execution
.LP
If the inquired information is available, the error indicator is returned
as zero and values are returned in the output parameters.
.LP
If the inquired information is not available, the values returned in the
output parameters are undefined and the error indicator is
set to one of the following error numbers to indicate the reason for
nonavailability.
.LP
Since this is an inquiry function, \s-2ERROR HANDLING\s+2 is not invoked
when an error is detected by this function.
.SH ERRORS
.IP 002
Ignoring function, function requires state (\s-2PHOP, *, *, *\s+2)
.IP 051
Ignoring function, this information unavailable for this workstation type
.IP 052
Ignoring function, workstation type not recognized by the implementation
.IP 059 
Ignoring function, the specified workstation does not have output capability
(i.e., the workstation category is neither \s-2OUTPUT\s+2, \s-2OUTIN\s+2, nor \s-2MO\s+2)
.IP 062
Ignoring function, this information is not available for this
\s-2MO\s+2 workstation type
.IP 100
Ignoring function, the bundle index value is less than one
.IP 102
Ignoring function, the specified representation has not been predefined
on this workstation
.SH SEE ALSO
.nf
.IP
.ta 0.5i
.SM "SET PATTERN REPRESENTATION PLUS (3P+)"
.SM "INQUIRE PATTERN REPRESENTATION PLUS (3P+)"
.SM "INQUIRE PREDEFINED PATTERN REPRESENTATION (3P)"
.SM "CREATE STORE (3P)"
.SM "DELETE STORE (3P)"
.fi
