form1.frm

Visual.Basic.NET实用编程百例-47.6M.zip

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "生成多边形"
   ClientHeight    =   1575
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   3810
   LinkTopic       =   "Form1"
   ScaleHeight     =   1575
   ScaleWidth      =   3810
   StartUpPosition =   3  'Windows Default
   Begin VB.TextBox Text1 
      Height          =   285
      Left            =   1320
      TabIndex        =   1
      Text            =   "3"
      Top             =   240
      Width           =   1215
   End
   Begin VB.CommandButton Command1 
      Caption         =   "生成"
      Height          =   375
      Left            =   1320
      TabIndex        =   0
      Top             =   840
      Width           =   1095
   End
   Begin VB.Label Label1 
      Caption         =   "输入边数："
      Height          =   255
      Left            =   240
      TabIndex        =   2
      Top             =   240
      Width           =   1335
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim num As Integer
Dim flag As Boolean
Private Sub Command1_Click()
       num = CInt(Text1.Text)
       Poly Form1
       flag = True
End Sub

Private Sub Form_Load()
  flag = False
End Sub

Private Sub Form_Click()
   If flag Then
    Unload Form1
    End
    End If
End Sub

Public Sub Poly(f As Form)
    Dim hdc1 As Long
    Dim rec(37) As POINTAPI
    For i = 0 To num - 1 Step 1
            rec(i).x = CInt(Int(Rnd() * 500) + 1)
            rec(i).y = CInt(Int(Rnd() * 500) + 1)
        Next
    hdc1 = CreatePolygonRgn(rec(0), 37, ALTERNATE)
    SetWindowRgn f.hWnd, hdc1, True
End Sub