You can send the WM_NCLBUTTONDOWN message with one of these values as the wParam:
VB Code:
  1. Private Const HTLEFT = 10
  2. Private Const HTRIGHT = 11
  3. Private Const HTTOP = 12
  4. Private Const HTBOTTOM = 15
  5. Private Const HTBOTTOMLEFT = 16
  6. Private Const HTBOTTOMRIGHT = 17
  7. Private Const HTTOPLEFT = 13
  8. Private Const HTTOPRIGHT = 14
Use these with SendMessage in the MouseDown event of your images.
Remember that you first must make a call to ReleaseCapture (I suspect you use simular code to move the form when you hit your TitleBar).

Best regards