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Basic ProTcXl

The predicate

tk(Options)
is the basic predicate that initialises a Tcl interpreter and a Tk main window so that Tcl/Tk commands can be executed. Options is a list of options (see tk/1  ), or nil. tk([]) is equivalent to invoking wish without arguments.   When tk/1   succeeds, the Tk toplevel window "."   is displayed.

The predicate tk_demo/0   will invoke the Tk demonstration suite distributed with Tk. Note that until we exit the demo with the Quit option in the Misc menu, the Prolog top-level loop is not accepting   any input. This is one possible way to use Tk in ECLiPSe , however it is also possible to process both graphical input and Prolog queries (see sec. 5.2).

The predicates tclsh/0   and wish/0   can be used to test Tcl/Tk code with ProTcXl commands. They initialise a Tcl interpreter and behave quite like their Tcl/Tk counterparts: they print a prompt, read a command from the user, execute it and print the result:

[eclipse 16]: tclsh.
% info globals
[tcl_version, argv, argv0, tcl_interactive, auto_path, errorCode,
errorInfo, protcl_library, env, tcl_patchLevel, argc, tcl_library]
%         # ^D typed
yes.
[eclipse 17]: wish.
% info globals
[tcl_version, argv, argv0, tcl_interactive, tkPriv.brick:0, tk_library,
tk_version, errorCode, auto_path, errorInfo, tk_strictMotif, protcl_library,
tkPriv, env, tcl_patchLevel, argc, tk_patchLevel, tcl_library]
%         # ^D typed
yes.


Micha Meier
Tue Jul 2 09:49:39 MET DST 1996