Hidden command handlers:

• Are run in the same way as other commands but do not appear on tabs or in separate windows and are hidden from the user
• Are used to perform non-visual tasks.
• Have most non-visual Framework and instance list services available to them.

Hidden Command Handlers for Web applications are:

• Normal Visual LANSA functions.
• They don't include visual elements such as Request or Display commands.
• They cannot signal to commands in the same business object at the same level.
• They do not listen to events.

When using hidden command handlers it is important to remember that they;

• Should always have the Default Command option set to NEVER for instance level commands or NO for business object level commands.
• Should never be used with the Hide All Other Command Tabs option set.
• Should never be attached to RAMP Destination screens.
• Should never attempt to display information to the user or interact with the user. Hidden means hidden.

Example of a Hidden Command Handler for Web Applications