9.16 Press 'Enter' instead of clicking the 'Ok' button
When writing input to the app it is much easier to just press the 'Enter' key to activate <action>.
export ok_box=' <window> <vbox> <entry activates_default="true"><default>press _enter_ to activate OK-button</default></entry> <hbox> <button can-default="true" has-default="true" use-stock="true"> <input file icon="gtk-ok"></input> <label>Ok</label> <action>EXIT:ok</action> </button> </hbox> </vbox> </window>' gtkdialog -p ok_box