How to: Draw an Existing Bitmap to the Screen
You can easily draw an existing image on the screen. First you need to create a Bitmap object by using the bitmap constructor that takes a file name, Bitmap(String). This constructor accepts images with several different file formats, including BMP, GIF, JPEG, PNG, and TIFF. After you have created the Bitmap object, pass that Bitmap object to the DrawImage method of a Graphics object.