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Tk_InitStubs(3)              Tk Library Procedures             Tk_InitStubs(3)




NAME

       Tk_InitStubs - initialize the Tk stubs mechanism


SYNOPSIS

       #include <tk.h>

       const char *
       Tk_InitStubs(interp, version, exact)


ARGUMENTS

       Tcl  interpreter  handle.   A  version string consisting of one or more
       decimal numbers separated by dots.  Non-zero means that only  the  par-
       ticular 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 version.


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_Init-
       Stubs page for more information.

       Enabling the stubs mechanism for a Tcl/Tk extension requires  the  fol-
       lowing 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  plat-
            forms,  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  ver-
       sion  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(3)


KEYWORDS

       stubs



Tk                                    8.4                      Tk_InitStubs(3)

TkInitStubs 8.5.4 - Generated Sun Aug 24 16:52:01 CDT 2008
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