Errors in the image resize class Visual c#

Question

I'm trying to make a puzzle game in microsoft visual c# 2010 and when I try to resize the image to fit the groupbox I get these errors:

error CS1502: The best overloaded method match for
'System.Drawing.Graphics.DrawImage(System.Drawing.Image,
System.Drawing.PointF)' has some invalid arguments

error CS1503: Argument 1: cannot convert from 'PuzzleImage.Form1' to
'System.Drawing.Image'

error CS1503: Argument 2: cannot convert from
'System.Drawing.Rectangle' to 'System.Drawing.PointF'

NOTE: The errors are in the 2nd part of the code, int the private Bitmap CreateBitmapImage(Form1 image) class.

Here is my code:

   OpenFileDialog openFileDialog = null;
    Form1 image;
    PictureBox picBoxWhole = null;

    private void buttonImageBrowse_Click(object sender, EventArgs e)
    {
        if (openFileDialog == null)
            openFileDialog = new OpenFileDialog();
        if (openFileDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
        {

            System.Drawing.Image image = new Bitmap(openFileDialog.FileName); 
                if(picBoxWhole== null)
                {
                    picBoxWhole= new PictureBox();
                    picBoxWhole.Height = groupboxPuzzle.Height;
                    picBoxWhole.Width =groupboxPuzzle.Width;
                    groupboxPuzzle.Controls.Add(picBoxWhole);
                }
            picBoxWhole.Image= image;
        }
    }

    private Bitmap CreateBitmapImage(Form1 image)
    {
        Bitmap objBmpImage = new Bitmap(groupboxPuzzle.Width, groupboxPuzzle.Height);
        Graphics objGraphics = Graphics.FromImage(objBmpImage);
        objGraphics.Clear(Color.White);
        int x = groupboxPuzzle.Width;
        int y = groupboxPuzzle.Height;
        objGraphics.DrawImage(image,  new Rectangle(0,0, x, y));
        objGraphics.Flush();

        return objBmpImage;

    }

And here is the tutorial that I am currently following. Also someone said something about an error at 77 step too.

Answer 1

Why are you transferring a Form parameter in your CreateBitmapImage() function? It says in that tutorial to accept Image type parameter.

private Bitmap CreateBitmapImage(Image image)

Answer 2

you need to change

 Form1 image; to  Image image; //only if you need this :)

and

private Bitmap CreateBitmapImage(Form1 image) to private Bitmap CreateBitmapImage(Image image)