Implements class for working with screen for Windows platform.

You can find more information in comments below. Overrided methods can be found in corresponding base interface.

class CScreen :public virtual IScreen
    {
    public:
        int getWidth() override;
        int getHeight() override;
        // Since 4.1.0 
        Point getDPI() override; // Return { 96, 96 } 
    };