SDL: How to create simpli slider and manipulate its position via mouse?

So I want to 开发者_StackOverflow中文版create a gui for my game. I want to create a draggable slider. How to do such thing having 2 images - track and ball?

Use some of SDL gui library rather than write another one. Here is small list: CEGUI, GuiChan.

Or you can try implement SDL into Qt.