C#

Random r = new Random();
int imageCount = r.Next();

Image[] images = new Image[imageCount];

// You will need to get the CD-ROM drive letter...
string[] files = Directory.GetFiles("D:\", "*.jpg");

for(int i = 0; i < imageCount; i++)
    images[i] = Image.FromFile(files[i]);

<br />
public bool ThumbnailCallback()<br />
{<br />
return false;<br />
}<br />
public void Example_GetThumb(PaintEventArgs e)<br />
{<br />
Image.GetThumbnailImageAbort myCallback =<br />
new Image.GetThumbnailImageAbort(ThumbnailCallback);<br />
Bitmap myBitmap = new Bitmap("Climber.jpg");<br />
Image myThumbnail = myBitmap.GetThumbnailImage(<br />
40, 40, myCallback, IntPtr.Zero);<br />
e.Graphics.DrawImage(myThumbnail, 150, 75);<br />
}<br />

<br />
this.ContextMenu.Popup += new EventHandler(ContextMenu_Popup);<br />
<br />
...<br />
<br />
private void ContextMenu_Popup(object sender, EventArgs e) {<br />
  this.ContextMenu.MenuItems.Add(new MenuItem("ContextMenuPopup"));<br />
}<br />