public static void Print(this Printers.PhotoPrinter printer, Photo[] photos)
{
for (int i = 0; i < photos.Length; i++)
{
printer.Print(photos[i]);
}
}
static void Main(string[] args)
{
ColorPrinter colorPrinter = new ColorPrinter();
colorPrinter.Print("Who am I? ");
colorPrinter.Print("\nPrinting in blue ", ConsoleColor.Blue);
PhotoPrinter photoPrinter = new PhotoPrinter();
Photo waterfall = new Photo("Waterfall", 1024);
photoPrinter.Print(waterfall);
photoPrinter.Print("Who am I? ");
Printer printer = colorPrinter;
printer.Print("I am used as base now!)");
printer = photoPrinter;
printer.Print("I am used as base now!)");
printer = new Printer();
printer.Print("I am base now!)");
Console.ReadLine();
}