In programming, an event handler is a callback routine that operates asynchronously once an event takes place. It dictates the action that follows the event. The programmer writes a code for this ...

GUI based programming is far from my area of expertise, I know enough to be dangerous, but not enough to know how dangerous. I am running into an issue with eventhandlers and wanting them to be ...

I've got a group of text boxes and comboboxes on a form that all have their focus_leave event handler pointed to a single event handler procedure. The procedure validates what was entered, and throws ...