VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   3195
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3195
   ScaleWidth      =   4680
   StartUpPosition =   3  'Windows Default
   Begin VB.CommandButton Command1 
      Caption         =   "Command1"
      Height          =   495
      Left            =   3120
      TabIndex        =   0
      Top             =   2160
      Width           =   1335
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Type Point
    x As Single
    y As Single
End Type

Private Function MidPoint(p1 As Point, p2 As Point) As Point
    Dim m As Point
    m.x = (p1.x + p2.x) / 2
    m.y = (p1.y + p2.y) / 2
    MidPoint = m
End Function

Private Sub Command1_Click()
    Dim mp As Point
    Dim p1 As Point, p2 As Point
    p1.x = 0: p1.y = 0
    p2.x = 1: p2.y = 2
    mp = MidPoint(p1, p2)
    Print mp.x, mp.y
End Sub