94 lines
3.7 KiB
Groff
94 lines
3.7 KiB
Groff
'\"
|
|
'\" Copyright (c) 1990 The Regents of the University of California.
|
|
'\" All rights reserved.
|
|
'\"
|
|
'\" Permission is hereby granted, without written agreement and without
|
|
'\" license or royalty fees, to use, copy, modify, and distribute this
|
|
'\" documentation for any purpose, provided that the above copyright
|
|
'\" notice and the following two paragraphs appear in all copies.
|
|
'\"
|
|
'\" IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
|
|
'\" FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
|
|
'\" ARISING OUT OF THE USE OF THIS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
|
|
'\" CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
'\"
|
|
'\" THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
|
|
'\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
|
|
'\" AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
|
|
'\" ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
|
|
'\" PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
|
|
'\"
|
|
'\" $Header: /user6/ouster/wish/man/RCS/GetSelect.3,v 1.6 93/04/01 09:41:39 ouster Exp $ SPRITE (Berkeley)
|
|
'\"
|
|
.so man.macros
|
|
.HS Tk_GetSelection tkc
|
|
.BS
|
|
.SH NAME
|
|
Tk_GetSelection \- retrieve the contents of the selection
|
|
.SH SYNOPSIS
|
|
.nf
|
|
\fB#include <tk.h>\fR
|
|
.sp
|
|
int
|
|
\fBTk_GetSelection\fR(\fIinterp, tkwin, target, proc, clientData\fR)
|
|
.SH ARGUMENTS
|
|
.AS Tk_GetSelProc clientData
|
|
.AP Tcl_Interp *interp in
|
|
Interpreter to use for reporting errors.
|
|
.AP Tk_Window tkwin in
|
|
Window on whose behalf to retrieve the selection (determines
|
|
display from which to retrieve).
|
|
.AP Atom target in
|
|
Form in which to retrieve selection.
|
|
.AP Tk_GetSelProc *proc in
|
|
Procedure to invoke to process pieces of the selection as they
|
|
are retrieved.
|
|
.AP ClientData clientData in
|
|
Arbitrary one-word value to pass to \fIproc\fR.
|
|
.BE
|
|
|
|
.SH DESCRIPTION
|
|
.PP
|
|
\fBTk_GetSelection\fR retrieves the selection in the format
|
|
specified by \fItarget\fR. The selection may actually be
|
|
retrieved in several pieces; as each piece is retrieved,
|
|
\fIproc\fR is called to process the piece. \fIProc\fR should
|
|
have arguments and result that match the type \fBTk_GetSelProc\fR:
|
|
.nf
|
|
.RS
|
|
typedef int Tk_GetSelProc(
|
|
.RS
|
|
ClientData \fIclientData\fR,
|
|
Tcl_Interp *\fIinterp\fR,
|
|
char *\fIportion\fR);
|
|
.RE
|
|
.RE
|
|
.fi
|
|
The \fIclientData\fP and \fIinterp\fR parameters to \fIproc\fR
|
|
will be copies of the corresponding arguments to
|
|
\fBTk_GetSelection\fR. \fIPortion\fR will be a pointer to
|
|
a string containing part or all of the selection. For large
|
|
selections, \fIproc\fR will be called several times with sucessive
|
|
portions of the selection. The X Inter-Client Communication
|
|
Conventions Manual allows the selection to be returned in formats
|
|
other than strings, e.g. as an array of atoms or integers. If
|
|
this happens, Tk converts the selection back into a string
|
|
before calling \fIproc\fR. If the selection is returned as an
|
|
array of atoms, Tk converts it to a string containing the atom names
|
|
separated by white space. For any other format besides string,
|
|
Tk converts the selection to a string containing hexadecimal
|
|
values separated by white space.
|
|
.PP
|
|
\fBTk_GetSelection\fR returns to its caller when the selection has
|
|
been completely retrieved and processed by \fIproc\fR, or when a
|
|
fatal error has occurred (e.g. the selection owner didn't respond
|
|
promptly). \fBTk_GetSelection\fR normally returns TCL_OK; if
|
|
an error occurs, it returns TCL_ERROR and leaves an error message
|
|
in \fIinterp->result\fR. \fIProc\fR should also return either
|
|
TCL_OK or TCL_ERROR. If \fIproc\fR encounters an error in dealing with the
|
|
selection, it should leave an error message in \fIinterp->result\fR
|
|
and return TCL_ERROR; this will abort the selection retrieval.
|
|
|
|
.SH KEYWORDS
|
|
format, get, selection retrieval
|