Select a suitable component

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C#

hello
first sorry for my bad english,
I am on an Image Processing project and i need to have two side by side pictures.what is the siutable component for that please?
thanks.
i am using picturebox (which is inside a panel with autoscroll=true) for that project,and i have following code for zoom in and out y picture in mouse wheel event.but it has a problem :
for the first time (after run my project) when i use Ctrl + mouse wheel it works and then when i use mouse wheel without
Ctrl every thing is ok.And i can scrolll through my picture.
but when i use ctrl+wheel for the first time (which must zoom my picture) doesn'n work.It also doesn't have error.

private void Form6_Load(object sender, EventArgs e)
       {
           tmpsize.Height = baseimg.Height;
           tmpsize.Width = baseimg.Width;
           pictureBox1.Height = tmpsize.Height;
           pictureBox1.Width = tmpsize.Width;
           pictureBox1.Image = baseimg;
           pictureBox1.SizeMode = PictureBoxSizeMode.Normal;

       }
 private void Form6_MouseWheel(object sender, MouseEventArgs e)
       {
           if (Control.ModifierKeys == Keys.Control)
           {
               try
               {

                   tmpsize.Height += e.Delta;
                   tmpsize.Width += e.Delta;
                   Bitmap nbpm = new Bitmap(baseimg, tmpsize);
                   pictureBox1.Height = tmpsize.Height;
                   pictureBox1.Width = tmpsize.Width;
                   pictureBox1.Image = nbpm;
                                  }
               catch
               {
               }
           }
           else
           {
               panel1.Focus();
           }
       }

thenks.