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'\"
'\" Copyright (c) 1998-2000 Scriptics Corporation.
'\" All rights reserved.
'\"
.TH Tcl_Init 3 9.0 Tcl "Tcl Library Procedures"
.so man.macros
.BS
.SH NAME
Tcl_Init \- find and source initialization script
.SH SYNOPSIS
.nf
\fB#include <tcl.h>\fR
.sp
int
\fBTcl_Init\fR(\fIinterp\fR)
.sp
const char *
\fBTcl_SetPreInitScript\fR(\fIscriptPtr\fR)
.SH ARGUMENTS
.AS Tcl_Interp *interp
.AP Tcl_Interp *interp in
Interpreter to initialize.
.AP "const char" *scriptPtr in
Address of the initialization script.
.BE
.SH DESCRIPTION
.PP
\fBTcl_Init\fR is a helper procedure that finds and \fBsource\fRs the
\fBinit.tcl\fR script, which should exist somewhere on the Tcl library
path.
.PP
\fBTcl_Init\fR is typically called from \fBTcl_AppInit\fR procedures.
.PP
\fBTcl_SetPreInitScript\fR registers the pre-initialization script and
returns the former (now replaced) script pointer.
A value of \fINULL\fR may be passed to not register any script.
The pre-initialization script is executed by \fBTcl_Init\fR before accessing
the file system. The purpose is to typically prepare a custom file system
(like an embedded zip-file) to be activated before the search.
When used in stub-enabled embedders, the stubs table must be first initialized
using one of \fBTcl_InitSubsystems\fR, \fBTcl_SetPanicProc\fR, \fBTcl_FindExecutable\fR
or \fBTclZipfs_AppHook\fR before \fBTcl_SetPreInitScript\fR may be called.
.SH "SEE ALSO"
Tcl_AppInit, Tcl_Main
.SH KEYWORDS
application, initialization, interpreter
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