2006-11-25 09:33:55 -07:00
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.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 X Consortium
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.\"
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.\" Permission is hereby granted, free of charge, to any person obtaining
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.\" a copy of this software and associated documentation files (the
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.\" "Software"), to deal in the Software without restriction, including
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.\" without limitation the rights to use, copy, modify, merge, publish,
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.\" distribute, sublicense, and/or sell copies of the Software, and to
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.\" permit persons to whom the Software is furnished to do so, subject to
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.\" the following conditions:
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.\"
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.\" The above copyright notice and this permission notice shall be included
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.\" in all copies or substantial portions of the Software.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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.\" IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
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.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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.\" OTHER DEALINGS IN THE SOFTWARE.
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.\"
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.\" Except as contained in this notice, the name of the X Consortium shall
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.\" not be used in advertising or otherwise to promote the sale, use or
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.\" other dealings in this Software without prior written authorization
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.\" from the X Consortium.
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.\"
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.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by
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.\" Digital Equipment Corporation
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.\"
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.\" Portions Copyright \(co 1990, 1991 by
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.\" Tektronix, Inc.
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.\"
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.\" Permission to use, copy, modify and distribute this documentation for
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.\" any purpose and without fee is hereby granted, provided that the above
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.\" copyright notice appears in all copies and that both that copyright notice
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.\" and this permission notice appear in all copies, and that the names of
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.\" Digital and Tektronix not be used in in advertising or publicity pertaining
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.\" to this documentation without specific, written prior permission.
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.\" Digital and Tektronix makes no representations about the suitability
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.\" of this documentation for any purpose.
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.\" It is provided ``as is'' without express or implied warranty.
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.\"
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.\"
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.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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.nf
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.\\$1D \\$2 \\$1
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2013-04-28 10:55:55 -06:00
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.ft CW
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2006-11-25 09:33:55 -07:00
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.\".ps \\n(PS
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.\".if \\n(VS>=40 .vs \\n(VSu
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.\".if \\n(VS<=39 .vs \\n(VSp
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..
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.de De
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.ce 0
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.if \\n(BD .DF
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.nr BD 0
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.in \\n(OIu
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.if \\n(TM .ls 2
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.sp \\n(DDu
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.fi
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..
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.de IN \" send an index entry to the stderr
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..
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.de Pn
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.ie t \\$1\fB\^\\$2\^\fR\\$3
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.el \\$1\fI\^\\$2\^\fP\\$3
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..
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.de ZN
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.ie t \fB\^\\$1\^\fR\\$2
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.el \fI\^\\$1\^\fP\\$2
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..
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.de hN
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.ie t <\fB\\$1\fR>\\$2
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.el <\fI\\$1\fP>\\$2
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..
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.ny0
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.TH XClearArea __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
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.SH NAME
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XClearArea, XClearWindow \- clear area or window
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.SH SYNTAX
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.HP
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int XClearArea\^(\^Display *\fIdisplay\fP\^, Window \fIw\fP\^, int \fIx\fP\^,
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int \fIy\fP\^, unsigned \fIwidth\fP\^, unsigned \fIheight\fP\^,
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Bool \fIexposures\fP\^);
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.HP
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int XClearWindow\^(\^Display *\fIdisplay\fP\^, Window \fIw\fP\^);
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.SH ARGUMENTS
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.IP \fIdisplay\fP 1i
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Specifies the connection to the X server.
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.IP \fIexposures\fP 1i
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Specifies a Boolean value that indicates if
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.ZN Expose
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events are to be generated.
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.IP \fIw\fP 1i
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Specifies the window.
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.ds Wh , which are the dimensions of the rectangle
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.IP \fIwidth\fP 1i
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.br
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.ns
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.IP \fIheight\fP 1i
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Specify the width and height\*(Wh.
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.ds Xy , which are relative to the origin of the window \
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and specify the upper-left corner of the rectangle
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.IP \fIx\fP 1i
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.br
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.ns
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.IP \fIy\fP 1i
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Specify the x and y coordinates\*(Xy.
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.SH DESCRIPTION
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The
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.ZN XClearArea
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function paints a rectangular area in the specified window according to the
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specified dimensions with the window's background pixel or pixmap.
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The subwindow-mode effectively is
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.ZN ClipByChildren .
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If width is zero, it
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is replaced with the current width of the window minus x.
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If height is
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zero, it is replaced with the current height of the window minus y.
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If the window has a defined background tile,
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the rectangle clipped by any children is filled with this tile.
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If the window has
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background
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.ZN None ,
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the contents of the window are not changed.
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In either
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case, if exposures is
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.ZN True ,
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one or more
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.ZN Expose
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events are generated for regions of the rectangle that are either visible or are
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being retained in a backing store.
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If you specify a window whose class is
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.ZN InputOnly ,
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a
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.ZN BadMatch
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error results.
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.LP
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.ZN XClearArea
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can generate
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.ZN BadMatch ,
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.ZN BadValue ,
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and
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.ZN BadWindow
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errors.
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.LP
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The
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.ZN XClearWindow
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function clears the entire area in the specified window and is
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equivalent to
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.ZN XClearArea
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(display, w, 0, 0, 0, 0,
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.ZN False ).
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If the window has a defined background tile, the rectangle is tiled with a
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plane-mask of all ones and
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.ZN GXcopy
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function.
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If the window has
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background
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.ZN None ,
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the contents of the window are not changed.
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If you specify a window whose class is
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.ZN InputOnly ,
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a
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.ZN BadMatch
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error results.
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.LP
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.ZN XClearWindow
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can generate
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.ZN BadMatch
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and
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.ZN BadWindow
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errors.
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.SH DIAGNOSTICS
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.TP 1i
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.ZN BadMatch
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An
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.ZN InputOnly
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window is used as a Drawable.
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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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.TP 1i
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.ZN BadWindow
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A value for a Window argument does not name a defined Window.
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.SH "SEE ALSO"
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2010-05-18 13:37:28 -06:00
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XCopyArea(__libmansuffix__)
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2006-11-25 09:33:55 -07:00
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.br
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\fI\*(xL\fP
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