Dim nodex As Node
Dim i As Integer
Dim lStyle As Long

Call SendMessage(TreeView1.hWnd, TVM_SETBKCOLOR, 0, ByVal RGB(255, 0, 0))
lStyle = GetWindowLong(TreeView1.hWnd, GWL_STYLE)
Call SetWindowLong(TreeView1.hWnd, GWL_STYLE, lStyle - TVS_HASLINES)
Call SetWindowLong(TreeView1.hWnd, GWL_STYLE, lStyle)

TreeView1.Style = tvwTreelinesPlusMinusPictureText
TreeView1.BorderStyle = ccFixedSingle
With TreeView1.Nodes
Set nodex = .Add(, , "R", "Root")
nodex.BackColor = RGB(255, 0, 0)
For i = 1 To 10
    Set nodex = .Add("R", tvwChild, "C" & i, "Child " & i)
    nodex.BackColor = RGB(255, 0, 0)
    nodex.EnsureVisible
Next
End With

End Sub