设置文本框的九种对齐方式(左上，中上，右上，左中，中中，右中，左下，中下，右下)

'Add a commandbutton and a textbox( multiline=true) and copy the following codes to form1:

Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long

Private Type RECT
Left As Long
Top As Long
Right As Long
Bottom As Long
End Type
Private Const EM_SETRECT As Long = &HB3
Private Const EM_SETRECTNP As Long = &HB4
Dim i As Integer

Sub alignment(ByVal txtbox As TextBox, ByVal index As Integer, ByVal txt As String)
Dim r As RECT, atop As Long, h As Long
SendMessage txtbox.hwnd, EM_GETRECT, 0, r
Me.FontName = txtbox.FontName
Me.FontSize = txtbox.FontSize
Me.FontBold = txtbox.FontBold
txtbox.Text = txt
h = Me.TextHeight("H") \ Screen.TwipsPerPixelY
If index \ 3 = 0 Then atop = 0
If index \ 3 = 1 Then atop = r.Bottom / 2 - h
If index \ 3 = 2 Then atop = r.Bottom - h
r.Top = atop
Debug.Print r.Top; r.Bottom
txtbox.alignment = Array(vbLeftJustify, vbCenter, vbRightJustify)(index Mod 3)
SendMessage txtbox.hwnd, EM_SETRECTNP, 0, r
txtbox.Refresh
End Sub

Private Sub Command1_Click()
Dim x() As String
x = Split("左上，中上，右上，左中，中中，右中，左下，中下，右下", "，")
alignment Text1, i, x(i)
i = (i + 1) Mod 9
End Sub