282 lines
6.6 KiB
Plaintext
282 lines
6.6 KiB
Plaintext
.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.na
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.de Ds
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.ny0
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.TH XSetClipOrigin 3X11 "Release 5" "X Version 11" "XLIB FUNCTIONS"
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.SH NAME
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XSetClipOrigin, XSetClipMask, XSetClipRectangles \- GC convenience routines
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.SH SYNTAX
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.\" $Header: XSetClipOrig.f,v 1.1 88/02/26 10:02:57 mento Exp $
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XSetClipOrigin\^(\^\fIdisplay\fP, \fIgc\fP\^, \fIclip_x_origin\fP\^, \fIclip_y_origin\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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GC \fIgc\fP\^;
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.br
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int \fIclip_x_origin\fP\^, \fIclip_y_origin\fP\^;
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.LP
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XSetClipMask\^(\^\fIdisplay\fP, \fIgc\fP, \fIpixmap\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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GC \fIgc\fP\^;
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.br
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Pixmap \fIpixmap\fP\^;
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.LP
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.\" $Header: XSetClpRects.f,v 1.1 88/02/26 10:02:59 mento Exp $
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XSetClipRectangles\^(\^\fIdisplay\fP, \fIgc\fP\^, \fIclip_x_origin\fP\^, \fIclip_y_origin\fP\^, \fIrectangles\fP\^, \fIn\fP\^, \fIordering\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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GC \fIgc\fP\^;
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.br
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int \fIclip_x_origin\fP\^, \fIclip_y_origin\fP\^;
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.br
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XRectangle \fIrectangles\fP[]\^;
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.br
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int \fIn\fP\^;
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.br
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int \fIordering\fP\^;
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.SH ARGUMENTS
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.\" $Header: display.a,v 1.1 88/02/26 10:26:29 mento Exp $
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.IP \fIdisplay\fP 1i
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Specifies the connection to the X server.
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.\" $Header: clipxy.a,v 1.3 88/05/09 12:10:59 mento Exp $
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.IP \fIclip_x_origin\fP 1i
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.br
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.ns
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.IP \fIclip_y_origin\fP 1i
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Specify the x and y coordinates of the clip-mask origin.
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.\" $Header: gc.a,v 1.2 88/05/09 11:20:34 mento Exp $
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.IP \fIgc\fP 1i
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Specifies the GC.
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.\" $Header: n2.a,v 1.1 88/02/26 10:29:03 mento Exp $
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.IP \fIn\fP 1i
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Specifies the number of rectangles.
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.\" $Header: ordering.a,v 1.2 88/05/09 12:17:14 mento Exp $
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.IP \fIordering\fP 1i
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Specifies the ordering relations on the rectangles.
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You can pass
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.ZN Unsorted ,
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.ZN YSorted ,
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.ZN YXSorted ,
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or
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.ZN YXBanded .
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.IP \fIpixmap\fP 1i
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Specifies the pixmap or
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.ZN None .
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.\" $Header: rectangles1.a,v 1.2 88/05/09 12:16:32 mento Exp $
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.IP \fIrectangles\fP 1i
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Specifies an array of rectangles that define the clip-mask.
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.SH DESCRIPTION
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.\" $Header: XSetClipOrig.d,v 1.2 88/06/11 07:53:02 mento Exp $
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The
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.ZN XSetClipOrigin
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function sets the clip origin in the specified GC.
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The clip-mask origin is interpreted relative to the origin of whatever
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destination drawable is specified in the graphics request.
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.LP
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.ZN XSetClipOrigin
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can generate
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.ZN BadAlloc
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and
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.ZN BadGC
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errors.
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.LP
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.\" $Header: XSetClpMask.d,v 1.2 88/06/11 07:53:02 mento Exp $
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The
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.ZN XSetClipMask
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function sets the clip-mask in the specified GC to the specified pixmap.
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If the clip-mask is set to
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.ZN None ,
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the pixels are are always drawn (regardless of the clip-origin).
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.LP
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.ZN XSetClipMask
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can generate
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.ZN BadAlloc ,
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.ZN BadGC ,
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.ZN BadMatch ,
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and
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.ZN BadValue
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errors.
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.LP
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.\" $Header: XSetClpRects.d,v 1.3 88/06/11 07:53:03 mento Exp $
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The
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.ZN XSetClipRectangles
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function changes the clip-mask in the specified GC
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to the specified list of rectangles and sets the clip origin.
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The output is clipped to remain contained within the
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rectangles.
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The clip-origin is interpreted relative to the origin of
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whatever destination drawable is specified in a graphics request.
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The rectangle coordinates are interpreted relative to the clip-origin.
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The rectangles should be nonintersecting, or the graphics results will be
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undefined.
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Note that the list of rectangles can be empty,
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which effectively disables output.
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This is the opposite of passing
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.ZN None
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as the clip-mask in
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.ZN XCreateGC ,
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.ZN XChangeGC ,
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and
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.ZN XSetClipMask .
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.LP
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If known by the client, ordering relations on the rectangles can be
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specified with the ordering argument.
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This may provide faster operation
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by the server.
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If an incorrect ordering is specified, the X server may generate a
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.ZN BadMatch
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error, but it is not required to do so.
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If no error is generated, the graphics
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results are undefined.
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.ZN Unsorted
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means the rectangles are in arbitrary order.
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.ZN YSorted
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means that the rectangles are nondecreasing in their Y origin.
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.ZN YXSorted
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additionally constrains
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.ZN YSorted
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order in that all
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rectangles with an equal Y origin are nondecreasing in their X
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origin.
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.ZN YXBanded
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additionally constrains
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.ZN YXSorted
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by requiring that,
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for every possible Y scanline, all rectangles that include that
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scanline have an identical Y origins and Y extents.
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.LP
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.ZN XSetClipRectangles
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can generate
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.ZN BadAlloc ,
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.ZN BadGC ,
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.ZN BadMatch ,
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and
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.ZN BadValue
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errors.
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.SH DIAGNOSTICS
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.\" $Header: badalloc.e,v 1.3 87/09/11 11:17:14 mento Exp $
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.TP 1i
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.ZN BadAlloc
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The server failed to allocate the requested resource or server memory.
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.\" $Header: badgc.e,v 1.1 87/09/04 08:23:02 mento Locked $
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.TP 1i
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.ZN BadGC
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A value for a GContext argument does not name a defined GContext.
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.\" $Header: badmatch2.e,v 1.3 87/09/11 11:53:42 mento Exp $
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.TP 1i
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.ZN BadMatch
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Some argument or pair of arguments has the correct type and range but fails
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to match in some other way required by the request.
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.\" $Header: badvalue.e,v 1.1 87/09/04 08:23:19 mento Exp $
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.TP 1i
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.ZN BadValue
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Some numeric value falls outside the range of values accepted by the request.
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Unless a specific range is specified for an argument, the full range defined
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by the argument's type is accepted. Any argument defined as a set of
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alternatives can generate this error.
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.SH "SEE ALSO"
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XCreateGC(3X11),
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XDrawRectangle(3X11),
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XQueryBestSize(3X11),
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XSetArcMode(3X11),
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XSetFillStyle(3X11),
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XSetFont(3X11),
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XSetLineAttributes(3X11),
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XSetState(3X11),
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XSetTile(3X11)
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.br
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\fI\*(xL\fP
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