Safe Tk(n)                   Tk Built-In Commands                   Safe Tk(n)



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NAME
       safe::loadTk - Load Tk into a safe interpreter.

SYNOPSIS
       safe::loadTk slave ?-use windowId? ?-display displayName?
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DESCRIPTION
       Safe Tk is based on Safe Tcl, which provides a mechanism that allows
       restricted and mediated access to auto-loading and packages for safe
       interpreters.  Safe Tk adds the ability to configure the interpreter
       for safe Tk operations and load Tk into safe interpreters.

       The safe::loadTk command initializes the required data structures in
       the named safe interpreter and then loads Tk into it.  The interpreter
       must have been created with safe::interpCreate or have been initialized
       with safe::interpInit.  The command returns the name of the safe
       interpreter.  If -use is specified, the window identified by the
       specified system dependent identifier windowId is used to contain the
       "."  window of the safe interpreter; it can be any valid id, eventually
       referencing a window belonging to another application. As a
       convenience, if the window you plan to use is a Tk Window of the
       application you can use the window name (e.g., ".x.y") instead of its
       window Id (e.g., from winfo id .x.y).  When -use is not specified, a
       new toplevel window is created for the "."  window of the safe
       interpreter. On X11 if you want the embedded window to use another
       display than the default one, specify it with -display.  See the
       SECURITY ISSUES section below for implementation details.

SECURITY ISSUES
       Please read the safe manual page for Tcl to learn about the basic
       security considerations for Safe Tcl.

       safe::loadTk adds the value of tk_library taken from the master
       interpreter to the virtual access path of the safe interpreter so that
       auto-loading will work in the safe interpreter.

       Tk initialization is now safe with respect to not trusting the slave's
       state for startup. safe::loadTk registers the slave's name so when the
       Tk initialization (Tk_SafeInit) is called and in turn calls the
       master's safe::InitTk it will return the desired argv equivalent (-use
       windowId, correct -display, etc.)

       When -use is not used, the new toplevel created is specially decorated
       so the user is always aware that the user interface presented comes
       from a potentially unsafe code and can easily delete the corresponding
       interpreter.

       On X11, conflicting -use and -display are likely to generate a fatal X
       error.

SEE ALSO
       safe(n), interp(n), library(n), load(n), package(n), source(n),
       unknown(n)

KEYWORDS
       alias, auto-loading, auto_mkindex, load, master interpreter, safe
       interpreter, slave interpreter, source



Tk                                    8.0                           Safe Tk(n)
