.NET (Core and Framework)

SetStyle(ControlStyles.UserPaint, true);
SetStyle(ControlStyles.AllPaintingInWmPaint, true);
SetStyle(ControlStyles.DoubleBuffer, true);

Bitmap resizedBitmap = new Bitmap(wantedWidth, wantedHeight);
Graphics g = Graphics.FromImage(resizedBitmap);
g.DrawImageUnscaled(oldBitmap, 0, 0, wantedWidth, wantedHeight);
g.Dispose();
//resizedBimtap is ready to use

public class Form1 : System.Windows.Forms.Form
{
	private Point _curPos = new Point(0, 0);
	private Image _image;

	public Form1()
	{
		base.KeyPress += new KeyPressEventHandler(Form1_KeyPress);
		SetStyle(ControlStyles.UserPaint, true);
		SetStyle(ControlStyles.AllPaintingInWmPaint, true);
		SetStyle(ControlStyles.DoubleBuffer, true);
		_image = new Bitmap("C:\\test2.jpg");
	}

	private void Form1_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
	{
		switch (e.KeyChar)
		{
			case 'w': _curPos.Y -= 5; break;
			case 's': _curPos.Y += 5; break;
			case 'a': _curPos.X -= 5; break;
			case 'd': _curPos.X += 5; break;
		}
		Invalidate();
	}

	protected override void OnPaint(PaintEventArgs e)
	{
		base.OnPaint (e);
		e.Graphics.DrawImageUnscaled(_image, _curPos);
	}
}

BinaryServerFormatterSinkProvider serverProvider = new BinaryServerFormatterSinkProvider();
         BinaryClientFormatterSinkProvider clientProvider = new BinaryClientFormatterSinkProvider();
         serverProvider.TypeFilterLevel = System.Runtime.Serialization.Formatters.TypeFilterLevel.Full;
         
         IDictionary props = new Hashtable();
         int portNumber = 9876;
         props["port"] = portNumber;
         props["typeFilterLevel"] = 
            System.Runtime.Serialization.Formatters.TypeFilterLevel.Full;
         try
         {
            ChannelServices.RegisterChannel(new TcpChannel(props, clientProvider, serverProvider));
         }