safe_loadTk - Load Tk into a safe interpreter.
safe::loadTk slave ?-use windowId? ?-display displayName?
Safe Tk(1t) Tk Built-In Commands Safe Tk(1t)
______________________________________________________________________________
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
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, spec-
ify it with -display. See the SECURITY ISSUES section below for imple-
mentation 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.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | runtime/tk-8 |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
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
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://source-
forge.net/projects/tcl/files/Tcl/8.6.7/tk8.6.7-src.tar.gz/download.
Further information about this software can be found on the open source
community website at https://www.tcl.tk/.
Tk 8.0 Safe Tk(1t)