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Take Command / TCC Help v. 21

@TK[expression] : Returns the string result of the Tk expression. For example, this will execute the Tk script test.tcl:


 echo %@tk[source test.tcl]


Because of the way the Tk interpreter works, it is not possible for TCC to maintain a persistent interpreter after executing a Tk script. TCC will close the current Tcl/tk interpreter and create a new one the next time @TCL is executed.


See also @TCL.