Developers' Guide > Customizing User Interface > FAQs

How To...

This section describes the programming essentials and key concepts, as well as code examples, for developing add-ons.

Click on any topic given below to learn more:

Add Custom User Menu and Handle Menu Events	Adding Custom Menu and Handle Menu Click Event
Create a Custom Screen in POS	Create a Custom Screen in MC
Create a Sample Add-On	Create an Additional Custom Button Panel
Customize POS Transaction Information Grid	Display Information/Error/Warning Message
Handle Button Events in MC	Handle Button Events in POS
Handle Custom Column Generated in Existing Screen	Handle Existing Screen GUI
Handle POS User Menu Item Events	Handle the Click Event on Quick Button Panel
Handle Transaction Mode Change Event	Open Custom Master Screen via Lookup
Open System Master Screen via Lookup	Usage of OnGlobalize Event
Use Manager Override Feature	Use Scanning Events