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42 lines
1.4 KiB
Groff
42 lines
1.4 KiB
Groff
'\"
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'\" Copyright (c) 2018 Tcl Core Team
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'\"
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'\" See the file "license.terms" for information on usage and redistribution
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'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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'\"
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.so man.macros
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.TH Tcl_InitSubsystems 3 9.0 Tcl "Tcl Library Procedures"
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.BS
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.SH NAME
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Tcl_InitSubsystems \- initialize the Tcl library.
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.SH SYNOPSIS
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.nf
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\fB#include <tcl.h>\fR
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.sp
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const char *
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\fBTcl_InitSubsystems\fR()
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.fi
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.BE
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.SH DESCRIPTION
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.PP
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The \fBTcl_InitSubsystems\fR procedure initializes various Tcl subsystems. It
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should be called by any additional Tcl threads created after the main thread in
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a Tcl application that wish to use Tcl facilities without creating an
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interpreter. Threads that create interpreters using \fBTcl_CreateInterp\fR do
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not need to call this function, provided that \fBTcl_CreateInterp\fR is the
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first call into Tcl from that thread.
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.PP
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Note that the main thread must have first called either \fBTclZipfs_AppHook\fR
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or \fBTcl_FindExecutable\fR to perform application-wide Tcl initialization
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before additional threads using Tcl are created. \fBTcl_InitSubsystems\fR does
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not suffice for this purpose and should only be used to initialize Tcl in
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secondary threads. It need not be called in the main thread invoking one of the
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two aforementioned functions.
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.PP
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The result of \fBTcl_InitSubsystems\fR is the full Tcl version string,
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including build information (for example,
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\fB9.0.0+abcdef...abcdef.gcc-1002\fR).
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.SH KEYWORDS
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binary, executable file
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