THBResize doesn\t work on a VB UserControl?
Indeed the resizer doesn\’t work on a user control. What you can do is to place a Frame or PictureBox control on the UserControl. Instead of placing your controls on the UserControl place them on the Frame. Then place the resizer on the Frame control. In this way the resizer is hosted by the Frame control and this works fine. To resize the Frame simply use the Resize event of the UserControl and resize the Frame manually: Private Sub UserControl_Initialize() THBResize1.hWnd = Frame1.hWnd End Sub Private Sub UserControl_Resize() Frame1.Left = 0 Frame1.Top = 0 Frame1.Width = UserControl.Width Frame1.Height = UserControl.