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author | rjohnson <rjohnson> | 1998-04-01 09:37:39 (GMT) |
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committer | rjohnson <rjohnson> | 1998-04-01 09:37:39 (GMT) |
commit | 13242623d2ff3ea02ab6a62bfb48a7dbb5c27e22 (patch) | |
tree | 3100714738a7941b590efee466a774862f9671c3 /doc/GetSelect.3 | |
parent | e4ab1102029f9ac557ff190bfb9d34408340f345 (diff) | |
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diff --git a/doc/GetSelect.3 b/doc/GetSelect.3 new file mode 100644 index 0000000..f0780cc --- /dev/null +++ b/doc/GetSelect.3 @@ -0,0 +1,79 @@ +'\" +'\" Copyright (c) 1990-1994 The Regents of the University of California. +'\" Copyright (c) 1994-1996 Sun Microsystems, Inc. +'\" +'\" See the file "license.terms" for information on usage and redistribution +'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. +'\" +'\" SCCS: @(#) GetSelect.3 1.16 96/08/27 13:21:28 +'\" +.so man.macros +.TH Tk_GetSelection 3 4.0 Tk "Tk Library Procedures" +.BS +.SH NAME +Tk_GetSelection \- retrieve the contents of a selection +.SH SYNOPSIS +.nf +\fB#include <tk.h>\fR +.sp +int +\fBTk_GetSelection\fR(\fIinterp, tkwin, selection, 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 selection in +The name of the selection to be retrieved. +.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 specified by the atom +\fIselection\fR 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: +.CS +typedef int Tk_GetSelProc( + ClientData \fIclientData\fR, + Tcl_Interp *\fIinterp\fR, + char *\fIportion\fR); +.CE +The \fIclientData\fR 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 successive +portions of the selection. The X Inter-Client Communication +Conventions Manual allows a 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 a 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 a 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 |