Note: This is a work in progress and many formatting issues have been fixed. Read more about the project on the home page.
Handler:
HyperCard sends the openField
message to an unlocked field when a user (or handler) first opens it for text editing. A user opens a field for editing either by clicking in the field or by tabbing from the previous field.
Once opened for editing, a field no longer receives openField
messages.
Any return-separated list of built-in commands, user-defined handlers, or keywords that are part of a message or function handler.