Event Handlers

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An event handler is a form method attached to an event. The event handler executes when that particular event occurs. When you use the Object Inspector to attach code to a component event, the product generates a procedure header and a begin...end block for you.

For example, the product generates the following block for a button click event:

Example

  procedure TForm1.Button1Click(Sender: TObject);
  
  begin
    
  end;

The code you write inside the code block executes whenever Button1 is clicked.

See Also

Events page