1. Полиморфизм ва виртуаль методлар

29. Анимациялар ҳосил илиш. Вақт билан ишлаш.
public Form1()
{
InitializeComponent();
DoubleBuffered = true;
System.Windows.Forms.Timer timer1 = new System.Windows.Forms.Timer();
timer1.Interval = 30;
timer1.Tick += Timer1_Tick;
timer1.Enabled = true;
}
int x_position = 0;
int bar_width = 40;
int speed = 1;
private void Timer1_Tick(object sender, EventArgs e)
{
x_position += speed;
if (x_position + bar_width > this.Width) x_position = 0;
Invalidate();
}
protected override void OnPaint(PaintEventArgs e)
{
e.Graphics.FillRectangle(Brushes.Black, x_position, 0, bar_width, 500);
}
Bu animatsiyani yaratish uchun "new project"->"windows forms application" ga kiramz keyn form1 ning uziga 2marta bosib kod yozish qismiga o'tamz va quyidagicha kodni yozamiz bu dasturning natijasi oq fonda qora palasa harakati hosil bôladi.