====== FAQ: How to find the code behind a given menu command? ======

You can look in the IJ_Props.txt file the exact plugin called by a given menu command.

For example for the 'Make Binary' menu entry, the IJ_Props.txt file reads

  binary01="Make Binary",ij.plugin.Thresholder

You'll find a copy of the IJ_Props.txt file in your ''ij.jar'' file or at http://rsb.info.nih.gov/ij/download/IJ_Props.txt

Then visit the source code page at http://rsb.info.nih.gov/ij/developer/source/index.html

and go to the correct class, in our example the ''ij.plugin.Thresholder'' class.

Another option to discover which class is called by a given menu item, is to enable the debug mode by checking the 'debug mode' checkbox under ''Edit/Options/Misc...'' dialog, run the investigated function from the menus and read the log output.

For our example, the debug log reads :

  actionPerformed: time=1228576256194, java.awt.event.ActionEvent[ACTION_PERFORMED,
  cmd=Make Binary,when=1228576256194,modifiers=] on menuitem1
  runPlugin: ij.plugin.Thresholder 

===== "Fiji" case =====

With "Fiji" ImageJ version, the IJ_Props.txt file don't contain all menu descriptions.

For example, the menu "Analyze / Directionality" isn't in "IJ_Props.txt" file and the "Debug mode" solution log :

  actionPerformed: time=12512156, java.awt.event.ActionEvent[ACTION_PERFORMED,
  cmd=Directionality,when=1339586662984,modifiers=] on menuitem0
  runPlugin: fiji.analyze.directionality.Directionality_  
  
This plugin is stored in the following file : "Fiji.app\plugins\Directionality_.jar"

You can see the link between the plugin and the menu in the text file "Fiji.app\plugins\Directionality_.jar\plugins.config" :

  # Directionality, builder Jean-Yves Tinevez   
  Analyze, "Directionality", fiji.analyze.directionality.Directionality_