pulse.frm

vb书本教材

VERSION 5.00
Object = "{C8C7D975-EC00-11D2-AAFB-002018650913}#1.1#0"; "Adpulse.ocx"
Begin VB.Form DAQForm 
   Caption         =   "脉冲输出"
   ClientHeight    =   3555
   ClientLeft      =   45
   ClientTop       =   270
   ClientWidth     =   4890
   LinkTopic       =   "Form1"
   ScaleHeight     =   3555
   ScaleWidth      =   4890
   StartUpPosition =   2  '屏幕中心
   Begin VB.CommandButton cmdStart 
      Caption         =   "开始输出"
      Height          =   372
      Left            =   3600
      TabIndex        =   12
      Top             =   480
      Width           =   1095
   End
   Begin VB.CommandButton cmdStop 
      Caption         =   "停止输出"
      Height          =   372
      Left            =   3600
      TabIndex        =   11
      Top             =   1320
      Width           =   1095
   End
   Begin VB.CommandButton cmdExit 
      Caption         =   "关闭程序"
      Height          =   372
      Left            =   3600
      TabIndex        =   9
      Top             =   2160
      Width           =   1095
   End
   Begin VB.Timer Timer1 
      Interval        =   100
      Left            =   3600
      Top             =   2880
   End
   Begin VB.Frame Frame2 
      Caption         =   "错误信息"
      Height          =   1455
      Left            =   120
      TabIndex        =   5
      Top             =   1920
      Width           =   3240
      Begin VB.TextBox Text2 
         Height          =   285
         Left            =   360
         TabIndex        =   8
         Top             =   960
         Width           =   2520
      End
      Begin VB.TextBox Text1 
         Height          =   285
         Left            =   360
         TabIndex        =   7
         Top             =   480
         Width           =   2520
      End
   End
   Begin VB.Frame Frame1 
      Caption         =   "参数设置"
      Height          =   1695
      Left            =   120
      TabIndex        =   0
      Top             =   120
      Width           =   3255
      Begin VB.ComboBox cmbGateMode 
         Height          =   300
         ItemData        =   "pulse.frx":0000
         Left            =   1320
         List            =   "pulse.frx":0002
         TabIndex        =   3
         Top             =   1080
         Width           =   1335
      End
      Begin VB.TextBox txtPeriod 
         Height          =   288
         Left            =   1320
         TabIndex        =   2
         Text            =   "0.1"
         Top             =   480
         Width           =   1335
      End
      Begin VB.Label Label7 
         Caption         =   "秒"
         Height          =   255
         Left            =   2760
         TabIndex        =   6
         Top             =   600
         Width           =   255
      End
      Begin VB.Label Label6 
         Caption         =   "触发方式："
         Height          =   255
         Left            =   240
         TabIndex        =   4
         Top             =   1080
         Width           =   975
      End
      Begin VB.Label Label4 
         Caption         =   "脉冲周期："
         Height          =   255
         Left            =   240
         TabIndex        =   1
         Top             =   480
         Width           =   1095
      End
   End
   Begin DAQPulseLib.DAQPulse DAQPulse1 
      Height          =   495
      Left            =   4200
      TabIndex        =   10
      Top             =   2880
      Width           =   495
      _Version        =   65537
      _ExtentX        =   864
      _ExtentY        =   864
      _StockProps     =   0
   End
End
Attribute VB_Name = "DAQForm"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'程序初始化
Private Sub Form_Load()
  Timer1.Enabled = False
  cmdStart.Enabled = False
  cmdStop.Enabled = False
  cmbGateMode.List(0) = "无触发"
  cmbGateMode.List(1) = "高电平触发"
  cmbGateMode.List(2) = "低电平触发"
  cmbGateMode.List(3) = "上升沿触发"
  cmbGateMode.List(4) = "下降沿触发"
  txtPeriod.Text = DAQPulse1.PulsePeriod
  DAQPulse1.SelectDevice
End Sub
'选择触发方式
Private Sub cmbGateMode_Click()
  DAQPulse1.GateMode = cmbGateMode.ListIndex
  cmdStart.Enabled = True
  cmdStop.Enabled = True
End Sub
'开始输出
Private Sub cmdStart_Click()
  DAQPulse1.OpenDevice
  DAQPulse1.Channel = 0
  DAQPulse1.PulseUpCycle = 0.05
  DAQPulse1.PulsePeriod = Val(txtPeriod.Text)
  DAQPulse1.EnablePulseOut True
  Timer1.Enabled = True
End Sub
'停止输出
Private Sub cmdStop_Click()
  Timer1.Enabled = False
  DAQPulse1.EnablePulseOut False
  DAQPulse1.ResetPulse
  DAQPulse1.CloseDevice
End Sub
'检测错误信息
Private Sub Timer1_Timer()
  Text1.Text = DAQPulse1.ErrorMessage
  Text2.Text = DAQPulse1.ErrorCode
End Sub
'退出程序
Private Sub cmdExit_Click()
  Unload Me
  End
End Sub
'关闭设备
Private Sub Form_Unload(Cancel As Integer)
  Timer1.Enabled = False
  DAQPulse1.EnablePulseOut False
  DAQPulse1.CloseDevice
End Sub