Hier ein Auszug aus dem Programm womit ich den Screenshot und das
Ausschneiden mache:

private void buttonl_Click(object sender, EventArgs e)

{

// Screenshot

this.Hide();

System.Threading.Thread.Sleep(500);

SendKeys.Send("{PRTSC"});

Image myImage = Clipboard.GetImage();

pictureBoxl1.Image = myImage;

this.Show();

” MouseEvent Rahmen ziehen

pictureBox1.MouseDown += new MouseEventHandler(pictureBoxl_MouseDown);
pictureBoxl.MouseMove += new MouseEventHandler(pictureBoxl_MouseMove)
pictureBoxl1.MouseEnter += new EventHandler(pictureBoxl_MouseEnter);
Controls.Add(pictureBox1);

}
int crpX,crpY,rectW, rectH;
public Pen crpPen = new Pen(Color.White);
private void pictureBoxl1_MouseDown(object sender, MouseEventArgs e)
{
base.0OnMouseDown(e);
if (e.Button == System.Windows.Forms.MouseButtons.Left)
{
Cursor = Cursors.Cross;
crpPen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dot;
crpX = e.X;
crpY = e.Y;
}
}
private void button2_Click(object sender, EventArgs e)
{

Cursor = Cursors.Default;

Bitmap bmp = new Bitmap(pictureBox1.Width, pictureBox1l.Height);
pictureBoxl1.DrawToBitmap(bmp, pictureBox1.ClientRectangle);
Bitmap crpImg = new Bitmap(rectW, rectH);
for( int 1i = @; 1 < rectW; i++*)

{
for(int y = O; y < rectH; y++)
{
Color pxlclır = bmp.GetPixel(crpX + i, crpY + y);
crpImg.SetPixel(i, y, pxlclr);
}
}
pictureBox2.Image = (Image)crpImg;
pictureBox2.SizeMode = PictureBoxSizeMode.CenterImage;
}
}
private void pictureBoxl_MouseEnter(object sender, EventArgs e)
€
base.OnMouseEnter(e);
Cursor = Cursors.Cross;
}