trigger pullDown

Interactive trigger for responding to a request for a pulldown menu in a desktop application.

Declaration:	`trigger print`
Applies to:	Application Shell, Form
Activation:	Activated by the structure editor function ^PULLDOWN, but only if the assignment file setting for $MENU_BAR includes the parameter `TRIG`. It is only possible to activate the application-level trigger if the component-level trigger does not contain ProcScript, or if it contains a $callup instruction.
Default behavior:	None
Behavior upon completion:	None

Description

Caution: It is strongly recommended that you not use pullDown triggers; they are provided for compatibility with pre-V5.2 applications.

The default menu bar is called USYS_BAR and is in the USYS library. This is a default menu bar which Uniface makes available for compliance with GUI environments.

The menu bar for an application shell can be changed in ProcScript by the pulldown or pulldown/load instruction. You should not use pulldown/load in the pullDown trigger.

ProcScript in the component-level pullDown trigger normally overrides the application-level pullDown trigger. However, using the $callup function, it is possible to activate the application level trigger when the componen-level trigger a $callup instruction. For more information, see $callup.