129 lines
4.0 KiB
Groff
129 lines
4.0 KiB
Groff
.\" Copyright (c) 1993, 1994 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 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 dealing 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 XtAdd-Callback XtAdd-Callbacks XtRemove-Callback XtRemove-Callbacks XtRemove-All-Callbacks wid-get
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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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.ft CW
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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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.ny0
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.TH XtAddCallback __libmansuffix__ __xorgversion__ "XT FUNCTIONS"
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.SH NAME
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XtAddCallback, XtAddCallbacks, XtRemoveCallback, XtRemoveCallbacks, XtRemoveAllCallbacks \- add and remove callback procedures
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.SH SYNTAX
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.HP
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void XtAddCallback(Widget \fIw\fP, String \fIcallback_name\fP, XtCallbackProc
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\fIcallback\fP, XtPointer \fIclient_data\fP);
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.HP
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void XtAddCallbacks(Widget \fIw\fP, String \fIcallback_name\fP, XtCallbackList
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\fIcallbacks\fP);
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.HP
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void XtRemoveCallback(Widget \fIw\fP, String \fIcallback_name\fP,
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XtCallbackProc \fIcallback\fP, XtPointer \fIclient_data\fP);
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.HP
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void XtRemoveCallbacks(Widget \fIw\fP, String \fIcallback_name\fP,
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XtCallbackList \fIcallbacks\fP);
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.HP
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void XtRemoveAllCallbacks(Widget \fIw\fP, String \fIcallback_name\fP,
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.SH ARGUMENTS
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.IP \fIcallback\fP 1i
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Specifies the callback procedure\*(Cb.
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.IP \fIcallbacks\fP 1i
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Specifies the null-terminated list of callback procedures and corresponding
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client data.
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.ds Cn \ to which the procedure is to be appended or deleted
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.IP \fIcallback_name\fP 1i
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Specifies the callback list\*(Cn.
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.ds Cd it is invoked by XtCallbacks or NULL, \
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or the client data to match on the registered callback procedures
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.IP \fIclient_data\fP 1i
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Specifies the argument that is to be passed to the specified procedure
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when \*(Cd.
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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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The
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.ZN XtAddCallback
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function adds the specified callback procedure to the specified widget's
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callback list.
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.LP
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The
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.ZN XtAddCallbacks
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add the specified list of callbacks to the specified widget's callback list.
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.LP
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The
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.ZN XtRemoveCallback
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function removes a callback only if both the procedure and the client
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data match.
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.LP
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The
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.ZN XtRemoveCallbacks
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function removes the specified callback procedures from the specified
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widget's callback list.
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.LP
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The
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.ZN XtRemoveAllCallbacks
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function removes all the callback procedures from the specified
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widget's callback list.
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.SH "SEE ALSO"
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XtCallCallbacks(__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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