Extending the ComboBox with C# Michael-R-Albertin 28.02.2009 Windows Forms combobox, control share Facebook Twitter Google + LinkedIn Pinterest Email Share... With the use of the SetWindowLong API, you are aligning each object as you want. Add these methods' associated properties. http://www.codeguru.com/csharp/csharp/cs_controls/custom/article.php/c15261__6/