Private tabArea As Rectangle

    Private tabTextArea As RectangleF

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        Me.TabControl1.DrawMode = TabDrawMode.OwnerDrawFixed '设置用户绘制方式

        Me.TabControl1.Alignment = TabAlignment.Right '设置TAB项右对齐布局

        'TabControl1.SizeMode = TabSizeMode.Fixed ‘设置TAB项大小的方式（全都一样大小）

        'TabControl1.ItemSize = New Size(150, 20) '设置大小

    End Sub

    Private Sub TabControl1_DrawItem(ByVal sender As Object, ByVal e As System.Windows.Forms.DrawItemEventArgs) Handles TabControl1.DrawItem

        tabArea = TabControl1.GetTabRect(e.Index) '主要是做个转换来获得TAB项的RECTANGELF

        tabTextArea = RectangleF.op_Implicit(TabControl1.GetTabRect(e.Index))

        Dim g As Graphics = e.Graphics

        Dim sf As New StringFormat() '封装文本布局信息

        sf.LineAlignment = StringAlignment.Center

        sf.Alignment = StringAlignment.Center