====== # Create the main message window message .m -text "Hello Tcl!" -background white pack .m -expand true -fill both -ipadx 100 -ipady 40 # Create the main menu bar with a Help-About entry menu .menubar menu .menubar.help -tearoff 0 .menubar add cascade -label "Help" -menu .menubar.help -underline 0 .menubar.help add command -label "About Hello ..." \ -accelerator "F1" -underline 0 \ -command showAbout # Define a procedure - an action for Help-About proc showAbout {} { tk_messageBox -message "Tcl/Tk\nHello Windows\nVersion 1.0" \ -title "About Hello" } # Configure the main window wm title . "Hello Foundation Application" . configure -menu .menubar -width 200 -height 150 bind . "" {showAbout} ====== <> Example | GUI