'\" t
.\" @(#)PEXGSE-PEXSunGseIdSetStrokeAAliasParams.3 1.5 95/04/07 SMI;
.so man3/pex.macs
.TH PEXGSE-PEXSunGseIdSetStrokeAAliasParams 3 "May 1995" "Solaris PEXlib Reference Manual" ""
.SH NAME
PEXGSE-PEXSunGseIdSetStrokeAAliasParams - PEX Set Stroke Anti-Aliasing Parameters
.SH SYNTAX
.HP
void PEXGSE\^(\^Display *\fIdisplay\fP\^, XID \fIresource_id\fP\^, PEXOCRequestType \fIreq_type\fP\^, long \fIid\fP\^, int \fIlength\fP\^, char *\fIdata\fP\^)
.SH PARAMETERS
.TP 1i
\fIdisplay\fP
A pointer to a display structure returned by a successful
.B XOpenDisplay
call.
.IP \fIresource_id\fP 1i
The resource identifier of the renderer or structure.
.IP \fIreq_type\fP 1i
The request type for the output command (
.B PEXOCRender,
.B PEXOCStore,
.B PEXOCRenderSingle
or
.B PEXOCStoreSingle
).
.IP \fIid\fP 1i
The identifier of the GSE.
.IP \fIlength\fP 1i
The length, in bytes, of the GSE data.
.IP \fIdata\fP 1i
A pointer to the GSE data.
.SH RETURNS
None
.SH DESCRIPTION
.\" indexing
.IX PEXGSE-PEXSunGseIdSetStrokeAAliasParams
.IX "GSE" "PEXGSE-PEXSunGseIdSetStrokeAAliasParams"
.LP
To use the Sun SetStrokeAntiAliasingParameters GSE, the
.I id
parameter should be set to
.B PEXSunGSEIdSetStrokeAAliasParams,
the
.I data
parameter should be set to point to structure type
.I pexSunGseStrokeAAlias,
and the
.I length
parameter should be set to the total length of
.I data.
.LP
This GSE is used to control stroke anti-aliasing for subsequent stroke
primitives of width equal to one.
.SH DATA STRUCTURES
.nf
typedef struct {
.br
	CARD32	prim;
	INT32		blend_eq;
	INT32		filter_width;
	INT32		filter_shape;
.br
} pexSunGseStrokeAAlias;
.fi
.LP
The
.I prim
field specifies the type of primitive for which this anti-aliasing
specification applies.
Values for
.I prim
are defined in
.B SunPEX.h
as listed below:
.LP
.TS
center, box;
lf3 cf3 lf3
l c l .
Symbol	Value	Explanation
_
PEXSunAAliasPrimLine	0x00000001	Anti-alias all polyline primitives.
PEXSunAAliasPrimMarker	0x00000002	Anti-alias all polymarker
		primitives.
PEXSunAAliasPrimText	0x00000004	Anti-alias all text primitives.
PEXSunAAliasPrimHollowSurf	0x00000008	Anti-alias hollow surfaces.
PEXSunAAliasPrimEdge	0x00000010	Anti-alias all edges.
PEXSunAAliasPrimAll	0xffffffff	Anti-alias all of the above.
.TE
.LP
Values for
.I blend_eq
are defined in
.B SunPEX.h
as follows:
.LP
.TS
center, box; 
lf3 cf3 lf3
l c l .
Symbol	Value	Explanation
_
PEXSunAAliasBlendNone	0	Do not anti-alias.
PEXSunAAliasBlendArbitBG	1	Blend to an arbitrary background, blending
		on each pixel.
PEXSunAAliasBlendConstBG	2	Blend to a constant background color 0.
PEXSunAAliasBlendAddToBG	3	Blend by adding to the background.
.TE
.LP
The following value is defined for
.I filter_shape
in
.B SunPEX.h
as follows:
.LP
.TS
center, box;
lf3 cf3 lf3
l c l .
Symbol	Value	Explanation
_
PEXSunAAliasFiltShapeGaussian	0	Use a Gaussian filter.
.TE
.SH SEE ALSO
.LP
.nf
.BR PEXGSE (3)
.fi