paintcircle.frm

个人VB学习源码精选,自己学习时的一些编程小程序,希望对大家有帮助

VERSION 5.00
Begin VB.Form PaintCircle 
   Caption         =   "Form1"
   ClientHeight    =   4635
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   6075
   LinkTopic       =   "Form1"
   ScaleHeight     =   4635
   ScaleWidth      =   6075
   StartUpPosition =   3  '窗口缺省
   Begin VB.TextBox Text1 
      Height          =   270
      Left            =   120
      TabIndex        =   0
      Top             =   240
      Width           =   4215
   End
   Begin VB.Timer Timer1 
      Interval        =   300
      Left            =   1320
      Top             =   1920
   End
End
Attribute VB_Name = "PaintCircle"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim num, num1, b
Const ZD = 80

Private Sub Form_Load()
    num1 = -6.283
End Sub

Private Sub Timer1_Timer()
    Cls
    Const PI = 3.14159265
    FillColor = QBColor(1)
    FillStyle = 0
    x = ScaleWidth / 2
    y = ScaleHeight / 2
    radius = ScaleWidth / 4
    Circle (x, y), radius, , num, num1
    Text1.Text = Str$(num) + " , " + Str$(num1)
    If Not b Then num = num - ((2 * PI) / ZD)
    If b Then num1 = num1 - ((2 * PI) / ZD)
    If Abs(num) > 6.283 Or Abs(num1) > 6.283 Then
        If Not b Then
            num = -6.283
            num1 = 0
            num1 = num1 - ((2 * PI) / ZD)
            b = True
        Else
            num = 0
            num = num - ((2 * PI) / ZD)
            num1 = -6.283
            b = False
        End If
    End If
End Sub