124 lines
4.1 KiB
Groff
124 lines
4.1 KiB
Groff
.\" Copyright 1993 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
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.\" included 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,
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.\" EXPRESS 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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.ds tk X Toolkit
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.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xI Intrinsics
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.ds xW X Toolkit Athena Widgets \- C Language 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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.ds Rn 3
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.ds Vn 2.2
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.hw XtRealize-Widget XtIs-Realized XtUnrealize-Widget wid-get
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.na
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.TH XtRealizeWidget __libmansuffix__ __xorgversion__ "XT FUNCTIONS"
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.SH NAME
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XtRealizeWidget, XtIsRealized, XtUnrealizeWidget \- realize and unrealize widgets
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.SH SYNTAX
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#include <X11/Intrinsic.h>
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.HP
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void XtRealizeWidget(Widget \fIw\fP);
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.HP
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Boolean XtIsRealized(Widget \fIw\fP);
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.HP
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void XtUnrealizeWidget(Widget \fIw\fP);
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.SH ARGUMENTS
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.IP \fIw\fP 1i
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Specifies the widget.
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.SH DESCRIPTION
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If the widget is already realized,
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.B XtRealizeWidget
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simply returns.
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Otherwise, it performs the following:
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.IP \(bu 5
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Binds all action names in the widget's
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translation table to procedures (see Section 10.1.2).
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.IP \(bu 5
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Makes a post-order traversal of the widget tree rooted
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at the specified widget and calls the change_managed procedure
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of each composite widget that has one or more managed children.
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.IP \(bu 5
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Constructs an
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.B XSetWindowAttributes
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structure filled in with information derived from the
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.B Core
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widget fields and calls the realize procedure for the widget,
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which adds any widget-specific attributes and creates the X window.
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.IP \(bu 5
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If the widget is
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not a subclass of
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.BR compositeWidgetClass ,
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.B XtRealizeWidget
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returns; otherwise, it continues and performs the following:
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.RS
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.IP \- 5
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Descends recursively to each of the widget's
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managed children and calls the realize procedures.
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Primitive widgets that instantiate children are responsible for realizing
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those children themselves.
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.IP \- 5
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Maps all of the managed children windows that have mapped_when_managed
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.BR True .
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(If a widget is managed but mapped_when_managed is
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.BR False ,
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the widget is allocated visual space but is not displayed.
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Some people seem to like this to indicate certain states.)
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.RE
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.LP
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If the widget is a top-level shell widget (that is, it has no parent), and
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mapped_when_managed is
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.BR True ,
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.B XtRealizeWidget
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maps the widget window.
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.LP
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The
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.B XtIsRealized
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function returns
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.B True
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if the widget has been realized,
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that is, if the widget has a nonzero X window ID.
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.LP
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Some widget procedures (for example, set_values) might wish to
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operate differently
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after the widget has been realized.
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.LP
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The
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.B XtUnrealizeWidget
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function destroys the windows of an existing widget and all of its
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children (recursively down the widget tree).
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To recreate the windows at a later time,
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call
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.B XtRealizeWidget
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again.
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If the widget was managed,
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it will be unmanaged automatically before its window is freed.
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.SH "SEE ALSO"
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XtManageChildren(__libmansuffix__)
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.br
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\fI\*(xT\fP
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.br
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\fI\*(xL\fP
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