NAME

       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  ([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(3tcl), interp(3tcl), library(3tcl), load(3tcl), package(3tcl), source(3tcl), unknown(3tcl)

KEYWORDS

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

Tk                                                     8.0                                          Safe Tk(3tk)