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Dropping a comboboxs list in code

Question: How do I get a ComboBox to drop down its list box in code? Answer: Send the ComboBox a CB_SHOWDROPDOWN message, passing a 1 (true) in the WParam parameter to drop the list down, or a 0 (false) to hide it. procedure TForm1.Button1Click(Sender: TObject); begin SendMessage(ComboBox1.Handle, CB_SHOWDROPDOWN, 1, 0); ComboBox1.SetFocus; end;