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