form1.frm

本文件包含200个visual baisc实例

VERSION 5.00
Object = "{648A5603-2C6E-101B-82B6-000000000014}#1.1#0"; "MSCOMM32.OCX"
Begin VB.Form Form1 
   Caption         =   "检测MODEM的状态"
   ClientHeight    =   3075
   ClientLeft      =   2280
   ClientTop       =   2040
   ClientWidth     =   4185
   LinkTopic       =   "Form1"
   ScaleHeight     =   3075
   ScaleWidth      =   4185
   StartUpPosition =   1  '所有者中心
   Begin VB.CommandButton Command2 
      Caption         =   "清除测试"
      Height          =   375
      Left            =   1560
      TabIndex        =   3
      Top             =   2580
      Width           =   1125
   End
   Begin VB.CommandButton Command3 
      Caption         =   "退出"
      Height          =   375
      Left            =   2700
      TabIndex        =   2
      Top             =   2580
      Width           =   1065
   End
   Begin VB.CommandButton Command1 
      Caption         =   "测试"
      Height          =   375
      Left            =   420
      TabIndex        =   1
      Top             =   2580
      Width           =   1125
   End
   Begin VB.TextBox text1 
      Height          =   1995
      Left            =   390
      MultiLine       =   -1  'True
      ScrollBars      =   2  'Vertical
      TabIndex        =   0
      Top             =   435
      Width           =   3360
   End
   Begin MSCommLib.MSComm MSComm1 
      Left            =   -30
      Top             =   990
      _ExtentX        =   1005
      _ExtentY        =   1005
      _Version        =   393216
      DTREnable       =   -1  'True
   End
   Begin VB.Label Label1 
      Caption         =   "测试状态"
      Height          =   195
      Left            =   420
      TabIndex        =   4
      Top             =   225
      Width           =   1605
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
  Dim buffer As Variant
  
  buffer = "12345"
  MSComm1.CommPort = 1      ' 设置com端口
  MSComm1.Settings = "9600,N,8,1"
  MSComm1.PortOpen = True
  MSComm1.Output = buffer
  text1 = IIf(MSComm1.CDHolding, "有载波信号", "无载波信号")
  text1 = text1 & vbCrLf & IIf(MSComm1.CTSHolding, "Clear TO Send:可以传输数据", "不允许传输数据")
  text1 = text1 & vbCrLf & IIf(MSComm1.DSRHolding, "终端已准备好", "终端尚未准备好")
  Command2.Enabled = True
  Command1.Enabled = False
End Sub
Private Sub Command2_Click()
  MSComm1.PortOpen = False
  text1.Text = ""
  Command1.Enabled = True
  Command2.Enabled = False
End Sub

Private Sub Command3_Click()
  End
End Sub