Short script to show use of 'guiscript=true' within a script run through QuPath v0.1.2

QuPath_guiscript_menu_trigger.groovy

// guiscript=true
def qupath = getQuPath()
def menuItem = qupath.getMenuItem("Automate>Show workflow command history")
menuItem.fire()

/* If guiscript=true is missing from the first line,
 * then menuItem.fire() will fail because it is called on the wrong thread.
 * 
 * In this case, the required syntax would be:
 * 
 * javafx.application.Platform.runLater({ -> menuItem.fire()})
 * 
 * 
 * Note: guiscript is not intended for routine use, since it blocks 
 * the main thread required by the entire QuPath user interface, 
 * and therefore can make QuPath unusable, or prevent useful feedback 
 * such as progress bar updates.
 * 
 * It exists as an option to help run very short, GUI-related scripts more easily.
 */