415 lines
11 KiB
Groff
415 lines
11 KiB
Groff
'\" t
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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, \fRO'Reilly and Associates,
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.ds xC Inter-Client Communication Conventions Manual
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'\" t
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.TH XAllocSizeHints __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
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.SH NAME
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XAllocSizeHints, XSetWMNormalHints, XGetWMNormalHints, XSetWMSizeHints, XGetWMSizeHints, XSizeHints \- allocate size hints structure and set or read a window's WM_NORMAL_HINTS property
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.SH SYNTAX
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.HP
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XSizeHints *XAllocSizeHints\^(void\^);
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.HP
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void XSetWMNormalHints\^(\^Display *\fIdisplay\fP, Window \fIw\fP, XSizeHints *\fIhints\fP\^);
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.HP
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Status XGetWMNormalHints\^(\^Display *\fIdisplay\fP, Window \fIw\fP,
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XSizeHints *\fIhints_return\fP, long *\fIsupplied_return\fP\^);
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.HP
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void XSetWMSizeHints\^(\^Display *\fIdisplay\fP, Window \fIw\fP, XSizeHints
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*\fIhints\fP, Atom \fIproperty\fP\^);
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.HP
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Status XGetWMSizeHints\^(\^Display *\fIdisplay\fP, Window \fIw\fP, XSizeHints
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*\fIhints_return\fP, long *\fIsupplied_return\fP, Atom \fIproperty\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 \fIhints\fP 1i
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Specifies the size hints for the window in its normal state.
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.IP \fIhints\fP 1i
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Specifies the
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.B XSizeHints
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structure to be used.
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.IP \fIhints_return\fP 1i
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Returns the size hints for the window in its normal state.
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.IP \fIproperty\fP 1i
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Specifies the property name.
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.IP \fIsupplied_return\fP 1i
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Returns the hints that were supplied by the user.
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.IP \fIw\fP 1i
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Specifies the window.
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.SH DESCRIPTION
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The
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.B XAllocSizeHints
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function allocates and returns a pointer to a
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.B XSizeHints
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structure.
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Note that all fields in the
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.B XSizeHints
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structure are initially set to zero.
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If insufficient memory is available,
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.B XAllocSizeHints
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returns NULL.
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To free the memory allocated to this structure,
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use
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.BR XFree .
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.LP
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The
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.B XSetWMNormalHints
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function replaces the size hints for the WM_NORMAL_HINTS property
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on the specified window.
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If the property does not already exist,
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.B XSetWMNormalHints
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sets the size hints for the WM_NORMAL_HINTS property on the specified window.
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The property is stored with a type of WM_SIZE_HINTS and a format of 32.
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.LP
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.B XSetWMNormalHints
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can generate
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.B BadAlloc
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and
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.B BadWindow
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errors.
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.LP
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The
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.B XGetWMNormalHints
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function returns the size hints stored in the WM_NORMAL_HINTS property
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on the specified window.
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If the property is of type WM_SIZE_HINTS, is of format 32,
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and is long enough to contain either an old (pre-ICCCM)
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or new size hints structure,
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.B XGetWMNormalHints
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sets the various fields of the
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.B XSizeHints
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structure, sets the supplied_return argument to the list of fields
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that were supplied by the user (whether or not they contained defined values),
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and returns a nonzero status.
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Otherwise, it returns a zero status.
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.LP
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If
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.B XGetWMNormalHints
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returns successfully and a pre-ICCCM size hints property is read,
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the supplied_return argument will contain the following bits:
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.LP
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.EX
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(USPosition|USSize|PPosition|PSize|PMinSize|
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PMaxSize|PResizeInc|PAspect)
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.EE
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.LP
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If the property is large enough to contain the base size
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and window gravity fields as well,
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the supplied_return argument will also contain the following bits:
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.LP
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.EX
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PBaseSize|PWinGravity
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.EE
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.LP
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.B XGetWMNormalHints
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can generate a
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PN BadWindow
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error.
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.LP
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The
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.B XSetWMSizeHints
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function replaces the size hints for the specified property
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on the named window.
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If the specified property does not already exist,
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.B XSetWMSizeHints
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sets the size hints for the specified property
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on the named window.
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The property is stored with a type of WM_SIZE_HINTS and a format of 32.
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To set a window's normal size hints,
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you can use the
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.B XSetWMNormalHints
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function.
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.LP
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.B XSetWMSizeHints
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can generate
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.BR BadAlloc ,
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.BR BadAtom ,
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and
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.B BadWindow
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errors.
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.LP
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The
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.B XGetWMSizeHints
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function returns the size hints stored in the specified property
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on the named window.
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If the property is of type WM_SIZE_HINTS, is of format 32,
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and is long enough to contain either an old (pre-ICCCM)
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or new size hints structure,
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.B XGetWMSizeHints
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sets the various fields of the
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.B XSizeHints
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structure, sets the supplied_return argument to the
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list of fields that were supplied by the user
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(whether or not they contained defined values),
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and returns a nonzero status.
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Otherwise, it returns a zero status.
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To get a window's normal size hints,
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you can use the
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.B XGetWMNormalHints
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function.
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.LP
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If
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.B XGetWMSizeHints
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returns successfully and a pre-ICCCM size hints property is read,
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the supplied_return argument will contain the following bits:
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.LP
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.EX
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(USPosition|USSize|PPosition|PSize|PMinSize|
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PMaxSize|PResizeInc|PAspect)
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.EE
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.LP
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If the property is large enough to contain the base size
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and window gravity fields as well,
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the supplied_return argument will also contain the following bits:
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.LP
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.EX
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PBaseSize|PWinGravity
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.EE
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.LP
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.B XGetWMSizeHints
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can generate
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.B BadAtom
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and
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.B BadWindow
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errors.
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.SH PROPERTIES
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.TP 1i
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\s-1WM_NORMAL_HINTS\s+1
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Size hints for a window in its normal state.
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The C type of this property is
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.BR XSizeHints .
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.SH STRUCTURES
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The
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.B XSizeHints
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structure contains:
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.LP
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.na
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/\&* Size hints mask bits */
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.TS
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lw(.4i) lw(1.0i) lw(1.1i) lw(2.8i).
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T{
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\&#define
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T} T{
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.B USPosition
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T} T{
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(1L << 0)
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T} T{
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/\&* user specified x, y */
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T}
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T{
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\&#define
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T} T{
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.B USSize
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T} T{
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(1L << 1)
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T} T{
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/\&* user specified width, height */
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T}
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T{
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\&#define
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T} T{
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.B PPosition
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T} T{
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(1L << 2)
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T} T{
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/\&* program specified position */
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T}
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T{
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\&#define
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T} T{
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.B PSize
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T} T{
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(1L << 3)
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T} T{
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/\&* program specified size */
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T}
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T{
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\&#define
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T} T{
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.B PMinSize
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T} T{
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(1L << 4)
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T} T{
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/\&* program specified minimum size */
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T}
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T{
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\&#define
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T} T{
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.B PMaxSize
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T} T{
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(1L << 5)
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T} T{
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/\&* program specified maximum size */
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T}
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T{
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\&#define
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T} T{
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.B PResizeInc
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T} T{
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(1L << 6)
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T} T{
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/\&* program specified resize increments */
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T}
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T{
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\&#define
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T} T{
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.B PAspect
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T} T{
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(1L << 7)
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T} T{
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/\&* program specified min and max aspect ratios */
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T}
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T{
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\&#define
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T} T{
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.B PBaseSize
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T} T{
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(1L << 8)
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T}
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T{
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\&#define
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T} T{
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.B PWinGravity
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T} T{
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(1L << 9)
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T}
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T{
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\&#define
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T} T{
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.B PAllHints
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T} T{
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(PPosition|
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.br
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PSize|
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.br
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PMinSize|
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.br
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PMaxSize|
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.br
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PResizeInc|
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.br
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PAspect)
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T} T{
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T}
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.TE
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.ad
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.IN "XSizeHints" "" "@DEF@"
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.EX
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/\&* Values */
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typedef struct {
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long flags; /\&* marks which fields in this structure are defined */
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int x, y; /\&* Obsolete */
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int width, height; /\&* Obsolete */
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int min_width, min_height;
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int max_width, max_height;
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int width_inc, height_inc;
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struct {
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int x; /\&* numerator */
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int y; /\&* denominator */
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} min_aspect, max_aspect;
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int base_width, base_height;
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int win_gravity;
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/\&* this structure may be extended in the future */
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} XSizeHints;
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.EE
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.LP
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The x, y, width, and height members are now obsolete
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and are left solely for compatibility reasons.
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The min_width and min_height members specify the
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minimum window size that still allows the application to be useful.
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The max_width and max_height members specify the maximum window size.
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The width_inc and height_inc members define an arithmetic progression of
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sizes (minimum to maximum) into which the window prefers to be resized.
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The min_aspect and max_aspect members are expressed
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as ratios of x and y,
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and they allow an application to specify the range of aspect
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ratios it prefers.
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The base_width and base_height members define the desired size of the window.
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The window manager will interpret the position of the window
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and its border width to position the point of the outer rectangle
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of the overall window specified by the win_gravity member.
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The outer rectangle of the window includes any borders or decorations
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supplied by the window manager.
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In other words,
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if the window manager decides to place the window where the client asked,
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the position on the parent window's border named by the win_gravity
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will be placed where the client window would have been placed
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in the absence of a window manager.
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.LP
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Note that use of the
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.B PAllHints
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macro is highly discouraged.
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.SH DIAGNOSTICS
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.TP 1i
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.B BadAlloc
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The server failed to allocate the requested resource or server memory.
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.TP 1i
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.B BadAtom
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A value for an Atom argument does not name a defined Atom.
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.TP 1i
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.B 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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XAllocClassHint(__libmansuffix__),
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XAllocIconSize(__libmansuffix__),
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XAllocWMHints(__libmansuffix__),
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XFree(__libmansuffix__),
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XSetCommand(__libmansuffix__),
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XSetTransientForHint(__libmansuffix__),
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XSetTextProperty(__libmansuffix__),
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XSetWMClientMachine(__libmansuffix__),
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XSetWMColormapWindows(__libmansuffix__),
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XSetWMIconName(__libmansuffix__),
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XSetWMName(__libmansuffix__),
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XSetWMProperties(__libmansuffix__),
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XSetWMProtocols(__libmansuffix__),
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XStringListToTextProperty(__libmansuffix__)
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.br
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\fI\*(xL\fP
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