Time for action – scroll bars

1. Double click on the MapEditor.vb file in Solution Explorer to reopen the map editor in the design view if it is not already open.

2. In the Toolbox window, double-click on the VScrollBar control, to add it to the form. Give it the following properties:

   • Name: VScrollBar1

   • Anchor: Top, Bottom, Right

   • LargeChange: 48

   • Location: 658, 27

   • Size: 17, 576

3. In the Toolbox window, double-click on the HScrollBar control to add it to the form. Give it the following properties:

   • Name: HScrollBar1

   • Anchor: Bottom, Left, Right

   • LargeChange: 48

   • Location: 184, 606

   • Size: 474, 17

4. Switch back to the code view for the MapEditor.vb file, and add the FixScrollBarScales() helper method to the MapEditor class:

   Private Sub FixScrollBarScales()
     Camera.ViewPortWidth = pctSurface.Width
     Camera.ViewPortHeight = pctSurface.Height
   
     Camera.Move(Vector2.Zero)
   
     VScrollBar1.Minimum = 0
     VScrollBar1.Maximum =Camera.WorldRectangle.Height -Camera.ViewPortHeight
   
     HScrollBar1.Minimum = 0
     HScrollBar1.Maximum = Camera...