241 lines
6.2 KiB
Groff
241 lines
6.2 KiB
Groff
|
.\" Copyright 1993 X Consortium
|
||
|
|
.\"
|
||
|
|
.\" Permission is hereby granted, free of charge, to any person obtaining
|
||
|
|
.\" a copy of this software and associated documentation files (the
|
||
|
|
.\" "Software"), to deal in the Software without restriction, including
|
||
|
|
.\" without limitation the rights to use, copy, modify, merge, publish,
|
||
|
|
.\" distribute, sublicense, and/or sell copies of the Software, and to
|
||
|
|
.\" permit persons to whom the Software is furnished to do so, subject to
|
||
|
|
.\" the following conditions:
|
||
|
|
.\"
|
||
|
|
.\" The above copyright notice and this permission notice shall be
|
||
|
|
.\" included in all copies or substantial portions of the Software.
|
||
|
|
.\"
|
||
|
|
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||
|
|
.\" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||
|
|
.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||
|
|
.\" IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
||
|
|
.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
||
|
|
.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||
|
|
.\" OTHER DEALINGS IN THE SOFTWARE.
|
||
|
|
.\"
|
||
|
|
.\" Except as contained in this notice, the name of the X Consortium shall
|
||
|
|
.\" not be used in advertising or otherwise to promote the sale, use or
|
||
|
|
.\" other dealings in this Software without prior written authorization
|
||
|
|
.\" from the X Consortium.
|
||
|
|
.\"
|
||
|
|
.ds tk X Toolkit
|
||
|
|
.ds xT X Toolkit Intrinsics \- C Language Interface
|
||
|
|
.ds xI Intrinsics
|
||
|
|
.ds xW X Toolkit Athena Widgets \- C Language Interface
|
||
|
|
.ds xL Xlib \- C Language X Interface
|
||
|
|
.ds xC Inter-Client Communication Conventions Manual
|
||
|
|
.ds Rn 3
|
||
|
|
.ds Vn 2.2
|
||
|
|
.hw XtCheck-Subclass XtIs-Object XtIs-RectObj XtIs-Widget XtIs-Composite XtIs-Constraint XtIs-Shell XtIs-Override-Shell XtIs-WM-Shell XtIs-Vendor-Shell XtIs-Transient-Shell XtIs-Top-Level-Shell XtIs-Application-Shell wid-get
|
||
|
|
.na
|
||
|
|
.de Ds
|
||
|
|
.nf
|
||
|
|
.\\$1D \\$2 \\$1
|
||
|
|
.ft 1
|
||
|
|
.ps \\n(PS
|
||
|
|
.\".if \\n(VS>=40 .vs \\n(VSu
|
||
|
|
.\".if \\n(VS<=39 .vs \\n(VSp
|
||
|
|
..
|
||
|
|
.de De
|
||
|
|
.ce 0
|
||
|
|
.if \\n(BD .DF
|
||
|
|
.nr BD 0
|
||
|
|
.in \\n(OIu
|
||
|
|
.if \\n(TM .ls 2
|
||
|
|
.sp \\n(DDu
|
||
|
|
.fi
|
||
|
|
..
|
||
|
|
.de FD
|
||
|
|
.LP
|
||
|
|
.KS
|
||
|
|
.TA .5i 3i
|
||
|
|
.ta .5i 3i
|
||
|
|
.nf
|
||
|
|
..
|
||
|
|
.de FN
|
||
|
|
.fi
|
||
|
|
.KE
|
||
|
|
.LP
|
||
|
|
..
|
||
|
|
.de IN \" send an index entry to the stderr
|
||
|
|
..
|
||
|
|
.de C{
|
||
|
|
.KS
|
||
|
|
.nf
|
||
|
|
.D
|
||
|
|
.\"
|
||
|
|
.\" choose appropriate monospace font
|
||
|
|
.\" the imagen conditional, 480,
|
||
|
|
.\" may be changed to L if LB is too
|
||
|
|
.\" heavy for your eyes...
|
||
|
|
.\"
|
||
|
|
.ie "\\*(.T"480" .ft L
|
||
|
|
.el .ie "\\*(.T"300" .ft L
|
||
|
|
.el .ie "\\*(.T"202" .ft PO
|
||
|
|
.el .ie "\\*(.T"aps" .ft CW
|
||
|
|
.el .ft R
|
||
|
|
.ps \\n(PS
|
||
|
|
.ie \\n(VS>40 .vs \\n(VSu
|
||
|
|
.el .vs \\n(VSp
|
||
|
|
..
|
||
|
|
.de C}
|
||
|
|
.DE
|
||
|
|
.R
|
||
|
|
..
|
||
|
|
.de Pn
|
||
|
|
.ie t \\$1\fB\^\\$2\^\fR\\$3
|
||
|
|
.el \\$1\fI\^\\$2\^\fP\\$3
|
||
|
|
..
|
||
|
|
.de ZN
|
||
|
|
.ie t \fB\^\\$1\^\fR\\$2
|
||
|
|
.el \fI\^\\$1\^\fP\\$2
|
||
|
|
..
|
||
|
|
.de NT
|
||
|
|
.ne 7
|
||
|
|
.ds NO Note
|
||
|
|
.if \\n(.$>$1 .if !'\\$2'C' .ds NO \\$2
|
||
|
|
.if \\n(.$ .if !'\\$1'C' .ds NO \\$1
|
||
|
|
.ie n .sp
|
||
|
|
.el .sp 10p
|
||
|
|
.TB
|
||
|
|
.ce
|
||
|
|
\\*(NO
|
||
|
|
.ie n .sp
|
||
|
|
.el .sp 5p
|
||
|
|
.if '\\$1'C' .ce 99
|
||
|
|
.if '\\$2'C' .ce 99
|
||
|
|
.in +5n
|
||
|
|
.ll -5n
|
||
|
|
.R
|
||
|
|
..
|
||
|
|
. \" Note End -- doug kraft 3/85
|
||
|
|
.de NE
|
||
|
|
.ce 0
|
||
|
|
.in -5n
|
||
|
|
.ll +5n
|
||
|
|
.ie n .sp
|
||
|
|
.el .sp 10p
|
||
|
|
..
|
||
|
|
.ny0
|
||
|
|
.TH XtClass __libmansuffix__ __xorgversion__ "XT FUNCTIONS"
|
||
|
|
.SH NAME
|
||
|
|
XtClass, XtSuperclass, XtIsSubclass, XtCheckSubclass, XtIsObject, XtIsRectObj, XtIsWidget, XtIsComposite, XtIsConstraint, XtIsShell, XtIsOverrideShell, XtIsWMShell, XtIsVendorShell, XtIsTransientShell, XtIsTopLevelShell, XtIsApplicationShell, XtIsSessionShell \- obtain and verify a widget's class
|
||
|
|
.SH SYNTAX
|
||
|
|
.HP
|
||
|
|
WidgetClass XtClass(Widget \fIw\fP);
|
||
|
|
.HP
|
||
|
|
WidgetClass XtSuperclass(Widget \fIw\fP);
|
||
|
|
.HP
|
||
|
|
Boolean XtIsSubclass(Widget \fIw\fP, WidgetClass \fIwidget_class\fP);
|
||
|
|
.HP
|
||
|
|
void XtCheckSubclass(Widget \fIwidget\fP, WidgetClass \fIwidget_class\fP,
|
||
|
|
String \fImessage\fP);
|
||
|
|
.HP
|
||
|
|
Boolean XtIsObject(Widget \fIw\fP);
|
||
|
|
.HP
|
||
|
|
Boolean XtIsRectObj(Widget \fIw\fP);
|
||
|
|
.HP
|
||
|
|
Boolean XtIsWidget(Widget \fIw\fP);
|
||
|
|
.HP
|
||
|
|
Boolean XtIsComposite(Widget \fIw\fP);
|
||
|
|
.HP
|
||
|
|
Boolean XtIsConstraint(Widget \fIw\fP,
|
||
|
|
.HP
|
||
|
|
Boolean XtIsShell(Widget \fIw\fP);
|
||
|
|
.HP
|
||
|
|
Boolean XtIsOverrideShell(Widget \fIw\fP);
|
||
|
|
.HP
|
||
|
|
Boolean XtIsWMShell(Widget \fIw\fP);
|
||
|
|
.HP
|
||
|
|
Boolean XtIsVendorShell(Widget \fIw\fP);
|
||
|
|
.HP
|
||
|
|
Boolean XtIsTransientShell(Widget \fIw\fP);
|
||
|
|
.HP
|
||
|
|
Boolean XtIsTopLevelShell(Widget \fIw\fP);
|
||
|
|
.HP
|
||
|
|
Boolean XtIsApplicationShell(Widget \fIw\fP);
|
||
|
|
.HP
|
||
|
|
Boolean XtIsSessionShell(Widget \fIw\fP);
|
||
|
|
.SH ARGUMENTS
|
||
|
|
.IP \fIw\fP 1i
|
||
|
|
Specifies the widget.
|
||
|
|
.IP \fIwidget_class\fP 1i
|
||
|
|
Specifies the widget class\*(Wc.
|
||
|
|
.ds Me used
|
||
|
|
.IP \fImessage\fP 1i
|
||
|
|
Specifies the message that is to be \*(Me.
|
||
|
|
.SH DESCRIPTION
|
||
|
|
The
|
||
|
|
.ZN XtClass
|
||
|
|
function returns a pointer to the widget's class structure.
|
||
|
|
.LP
|
||
|
|
The
|
||
|
|
.ZN XtSuperclass
|
||
|
|
function returns a pointer to the widget's superclass class structure.
|
||
|
|
.LP
|
||
|
|
The
|
||
|
|
.ZN XtIsSubclass
|
||
|
|
function returns
|
||
|
|
.ZN True
|
||
|
|
if the class of the specified widget is equal to or is a subclass of
|
||
|
|
the specified class. The widget's class can be any number of subclasses
|
||
|
|
down the chain and need not be an immediate subclass of the specified
|
||
|
|
class. Composite widgets that need to restrict the class of the items
|
||
|
|
they contain can use
|
||
|
|
.ZN XtIsSubclass
|
||
|
|
to find out if a widget belongs to the desired class of objects.
|
||
|
|
.LP
|
||
|
|
The
|
||
|
|
.ZN XtCheckSubclass
|
||
|
|
macro determines if the class of the specified widget is equal to
|
||
|
|
or is a subclass of the specified widget class.
|
||
|
|
The widget can be any number of subclasses down the chain
|
||
|
|
and need not be an immediate subclass of the specified widget class.
|
||
|
|
If the specified widget is not a subclass,
|
||
|
|
.ZN XtCheckSubclass
|
||
|
|
constructs an error message from the supplied message,
|
||
|
|
the widget's actual class, and the expected class and calls
|
||
|
|
.ZN XtErrorMsg .
|
||
|
|
.ZN XtCheckSubclass
|
||
|
|
should be used at the entry point of exported routines to ensure
|
||
|
|
that the client has passed in a valid widget class for the exported operation.
|
||
|
|
.LP
|
||
|
|
.ZN XtCheckSubclass
|
||
|
|
is only executed when the widget has been compiled with the compiler symbol
|
||
|
|
DEBUG defined; otherwise, it is defined as the empty string
|
||
|
|
and generates no code.
|
||
|
|
.LP
|
||
|
|
To test if a given widget belongs to a subclass of an Intrinsics-defined
|
||
|
|
class, the Intrinsics defines macros or functions equivalent to
|
||
|
|
.ZN XtIsSubclass
|
||
|
|
for each of the built-in classes. These procedures are
|
||
|
|
.ZN XtIsObject ,
|
||
|
|
.ZN XtIsRectObj ,
|
||
|
|
.ZN XtIsWidget ,
|
||
|
|
.ZN XtIsComposite ,
|
||
|
|
.ZN XtIsConstraint ,
|
||
|
|
.ZN XtIsShell ,
|
||
|
|
.ZN XtIsOverrideShell ,
|
||
|
|
.ZN XtIsWMShell ,
|
||
|
|
.ZN XtIsVendorShell ,
|
||
|
|
.ZN XtIsTransientShell ,
|
||
|
|
.ZN XtIsTopLevelShell ,
|
||
|
|
.ZN XtIsApplicationShell ,
|
||
|
|
and
|
||
|
|
.ZN XtIsSessionShell .
|
||
|
|
.LP
|
||
|
|
The
|
||
|
|
.SH "SEE ALSO"
|
||
|
|
XtAppErrorMsg(3Xt),
|
||
|
|
XtDisplay(3Xt)
|
||
|
|
.br
|
||
|
|
\fI\*(xT\fP
|
||
|
|
.br
|
||
|
|
\fI\*(xL\fP
|