Hi all,

I have been making some customizations on a sales invoice. I created a button called 'mp validation'(PushButton(-90,5,-20,22,ToolOK," MP Validation");) in the allwindows.hal file.
What I wish to achieve is that when a user clicks on the mp validation button, a button click event is triggered,create some event, so that the event will be sent to the relevant event listener ( the ActionListener)

How can I achieve this in hal?

Any link to a relevant documentation or a solution will really help because I am stuck.