Tk_InitStubs(3) 					       Tk Library Procedures						   Tk_InitStubs(3)

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NAME

       Tk_InitStubs - initialize the Tk stubs mechanism

SYNOPSIS

       #include <tk.h>

       const char *
       Tk_InitStubs(interp, version, exact)

ARGUMENTS

       Tcl_Interp *interp (in)		Tcl interpreter handle.

       char *version (in)		A version string consisting of one or more decimal numbers separated by dots.

       int exact (in)			Non-zero  means  that  only the particular Tk version specified by version is acceptable.  Zero means that
					versions newer than version are also acceptable as long as they have the same major version number as ver-
					sion.
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INTRODUCTION

       The  Tcl  stubs mechanism defines a way to dynamically bind extensions to a particular Tcl implementation at run time.  the stubs mechanism
       requires no changes to applications incoporating Tcl/Tk interpreters.  Only developers creating C-based	Tcl/Tk	extensions  need  to  take
       steps to use the stubs mechanism with their extensions.	See the Tcl_InitStubs page for more information.

       Enabling the stubs mechanism for a Tcl/Tk extension requires the following steps:

       1)   Call Tcl_InitStubs in the extension before calling any other Tcl functions.

       2)   Call Tk_InitStubs if the extension before calling any other Tk functions.

       2)   Define the USE_TCL_STUBS symbol. Typically, you would include the -DUSE_TCL_STUBS flag when compiling the extension.

       3)   Link  the  extension with the Tcl and Tk stubs libraries instead of the standard Tcl and Tk libraries.  On Unix platforms, the library
	    names are libtclstub8.4.a and libtkstub8.4.a; on Windows platforms, the library names are tclstub84.lib and tkstub84.lib (adjust names
	    with appropriate version number).

DESCRIPTION

       Tk_InitStubs  attempts  to  initialize  the  Tk stub table pointers and ensure that the correct version of Tk is loaded.  In addition to an
       interpreter handle, it accepts as arguments a version number and a Boolean flag indicating whether the extension requires an exact  version
       match or not.  If exact is 0, then the extension is indicating that newer versions of Tk are acceptable as long as they have the same major
       version number as version; non-zero means that only the specified version is acceptable.  Tcl_InitStubs returns	a  string  containing  the
       actual  version	of  Tk	satisfying  the request, or NULL if the Tk version is not acceptable, does not support the stubs mechanism, or any
       other error condition occurred.

SEE ALSO

       Tcl_InitStubs

KEYWORDS

       stubs

Tk									8.4							   Tk_InitStubs(3)