A dialog is then brought up that shows you all known variables of the selected type. The variable will be inserted at the current cursor position, if you close the variable selection dialog with the [OK] button or of you double-click on a variable. In text fields, the appropriate variable syntax will be used (like ${installer:myVariable}), in code editors, an appropriate API call will be inserted (like context.getVariable("myVariable").

Please see the help topic on variables more information on variables.

•  Installer variables
   
  Installer variables are only available for text properties of screens, actions and form components.

  The variable selection dialog shows both predefined variables as well as all bound variables. Installer variables are shown for the currently edited installer application. The drop-down list at the top allows to you change the installer application.

  The Edit link in the top right corner allows you to add pre-defined installer variables on the fly.

•  Compiler variables
   
  Compiler variables are available for all text fields. The Edit link in the top right corner allows you to add compiler variables on the fly.
•  I18N messages
   
  I18N messages are available for text properties of screens, actions and form components and selected other text fields in the install4j IDE.

  The variable selector shows both system messages as well as custom localization keys from the file that has been defined for the principal language on the Languages tab.

  The Edit link in the top right corner allows you to add custom localization keys on the fly.

•  Launcher variables
   
  Runtime variables are system variables that are evaluated at runtime of the launcher or installer. They are only shown in the variable selector next to the VM parameter text field in the Java invocation step of the launcher wizard.