using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms;

namespace WindowsFormsApplication1 {     public partial class Form1 : Form     {         public Form1()         {             InitializeComponent();         }

        Bitmap bitmap1;

        private void InitializeBitmap()         {             try             {                 bitmap1 = (Bitmap)Properties.Resources.a;                 pictureBox1.SizeMode = PictureBoxSizeMode.AutoSize;                 pictureBox1.Image = bitmap1;             }             catch (System.IO.FileNotFoundException)             {                 MessageBox.Show("There was an error." +                     "Check the path to the bitmap.");             }

        }

        private void button1_Click(System.Object sender, System.EventArgs e)         {

            if (bitmap1 != null)             {                 bitmap1.RotateFlip(RotateFlipType.Rotate180FlipY);                 pictureBox1.Image = bitmap1;             }

        }

        private void Form1_Load(object sender, EventArgs e)         {             InitializeBitmap();         }     } }