As with menus (menu items), an application can create an owner-drawn combo box to take responsibility for painting list items. An owner-drawn combo box can list/show information other than text strings - usually some graphical elements.
To create an owner-draw combo box, we set its Style property to csOwnerDrawFixed or csOwnerDrawVariable.
To demonstrate owner-drawing with combo boxes create a combo box full of colors (two variations) and a combo with true-type fonts showing the actual image of the font.
Read more: http://delphi.about.com/od/vclusing/a/drawincombobox.htm
To read more about Owner Drawing in Delphi read: http://delphi.about.com/od/vclusing/a/owner_drawing.htm
Delphi Basics - Free Delphi Source Code - Ultimate Programming Resource > Delphi Basics Snippets >