## ŒEVN Event Name

The niladic system function ŒEVN is valid only when you are running a ŒWE callback function in response to an event. It contains the name of the event as a character vector. For .Net, this will be one of event property names, such as `'Closed'` for a `Form`, or `'Click'` for a Button. For System classes, it will be one of the callback names beginning with 'on'.

Topic: APLX Help : Help on APL language : System Functions & Variables : ŒEVN Event Name

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