Safe Tk(n) Tk Built-In Commands Safe Tk(n)
NAME
safe::loadTk - Load Tk into a safe interpreter.
SYNOPSIS
safe::loadTk slave ?-use windowId? ?-display displayName?
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 inter-
preter. 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 win-
dow you plan to use is a Tk Window of the application you can use the
window name (e.g., 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 secu-
rity considerations for Safe Tcl.
safe::loadTk adds the value of tk_library taken from the master inter-
preter 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 mas-
ter'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)
tk 8.6.0 - Generated Sun Jan 20 13:20:32 CST 2013