How do I save pictureBox1.Image with the current drawings inside?

Question

In form1 I have pictureBox1 Paint event:

private void pictureBox1_Paint(object sender, PaintEventArgs e)
{
  CloudEnteringAlert.Paint(e.Graphics, factor, distance);
  pictureboximagestosavecount++;
  pictureBox1.Image.Save(@"c:\temp\pboximages\" + 
      pictureboximagestosavecount.ToString("D6") + 
      "pbimg.gif", System.Drawing.Imaging.ImageFormat.Gif);
  anglecounter += 1;
  DrawLine(e.Graphics, anglecounter);
  if (null != mImage)
  {
     e.Graphics.DrawImage(mImage, mRect);
  }
  DrawRectangle(e.Graphics);
}

When I'm running the program I see the DrawLine I see cloudEnteringAlert and the image I see everything on the pictureBox1.

I added now the saving line:

pictureBox1.Image.Save(@"c:\temp\pboximages\" + 
                         pictureboximagestosavecount.ToString("D6") + "pbimg.gif", 
                         System.Drawing.Imaging.ImageFormat.Gif);

I'm getting many images gif's on my drive but they are the same I don't see the CloudEnteringAlert and not the DrawLine only the image itself. I guess I'm not saving the changes only the Image. Then how can I save it all the time including the drawings of the CloudEnteringAlert and the DrawLine ?

EDIT:

This is what i did now:

private void pictureBox1_Paint(object sender, PaintEventArgs e)
        {
            anglecounter += 1;
            DrawLine(e.Graphics, anglecounter);
            if (null != mImage)
            {
                e.Graphics.DrawImage(mImage, mRect);
            }
            DrawRectangle(e.Graphics);

            pictureboximagestosavecount++;
            savePictureBox(pictureBox1, @"c:\temp\pboximages\" + pictureboximagestosavecount.ToString("D6") + "pbimg.gif");
        }

        void savePictureBox(PictureBox PB, string fileName)
        {
            using (Bitmap bmp = new Bitmap(PB.ClientSize.Width, PB.ClientSize.Height))
            {
                PB.DrawToBitmap(bmp, PB.ClientRectangle);
                bmp.Save(fileName, System.Drawing.Imaging.ImageFormat.Gif);
            }
        }

I have timer3 tick event that make pictureBox1.Invalidate(); each 10ms I need it 10ms interval since i want the drawings in the paint event to be smooth as possible and also fast.

And since i call savePictureBox in the paint event each 10ms it make everything very slow.

This is timer3 tick event. Timer3 interval is set to 10ms since i want that the drawing in the method DrawLine to be fast.

private void timer3_Tick(object sender, EventArgs e)
        {
            pictureBox1.Invalidate();
        }

Answer 1

Here is the code you probably are looking for:

void savePictureBox(PictureBox PB, string fileName)
{
    using (Bitmap bmp = new Bitmap(PB.ClientSize.Width, PB.ClientSize.Height))
    {
        PB.DrawToBitmap(bmp, PB.ClientRectangle);
        bmp.Save(fileName, System.Drawing.Imaging.ImageFormat.Gif);
    }
}

It saves the PictureBox complete with Image , BackgroundImage (if there is one) and everything drawn onto it in the Paint event.

If instead you actually want to modify the Image say so..