form1.frm

一个测试转角的程序

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   7770
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   9915
   LinkTopic       =   "Form1"
   ScaleHeight     =   7770
   ScaleWidth      =   9915
   StartUpPosition =   3  '窗口缺省
   Begin VB.Timer Timer1 
      Enabled         =   0   'False
      Interval        =   1000
      Left            =   1920
      Top             =   4560
   End
   Begin VB.CommandButton Command1 
      Caption         =   "关闭"
      Height          =   615
      Left            =   5400
      TabIndex        =   2
      Top             =   3720
      Width           =   975
   End
   Begin VB.TextBox Text1 
      Height          =   735
      Left            =   2880
      TabIndex        =   1
      Top             =   2040
      Width           =   1455
   End
   Begin VB.CommandButton cmd 
      Caption         =   "开始转动"
      Height          =   495
      Left            =   3480
      TabIndex        =   0
      Top             =   3720
      Width           =   975
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim hDevice As Long
Dim Para_DI As USB2010_PARA_DI
Dim s1, s2 As Single
Dim dAvg As Single
Dim bStatus As Boolean
Private Sub Command1_Click()
Unload Me
End Sub
Private Sub cmd_Click()
If cmd.Caption = "开始转动" Then
  Timer1.Enabled = True
  cmd.Caption = "停止转动"
Else
 cmd.Caption = "开始转动"
End If
End Sub
Private Sub Form_Load()
Dim s As Single
s = 0
s1 = 0
s2 = 0
hDevice = USB2010_CreateDevice(0)
If hDevice = INVALID_HANDLE_VALUE Then
   MsgBox "创建设备对象失败"
   Exit Sub
 End If
 dAvg = 360 / 8192
 bStatus = USB2010_GetDeviceDI(hDevice, Para_DI)
   If bStatus = False Then
    Exit Sub
    End If
  If (Para_DI.DI0) = 1 Then
    s = s + 1
  End If
  If (Para_DI.DI1) = 1 Then
    s = s + 2
  End If
  If (Para_DI.DI2) = 1 Then
   s = s + 4
  End If
  If (Para_DI.DI3) = 1 Then
   s = s + 8
  End If
  If (Para_DI.DI4) = 1 Then
   s = s + 16
  End If
  If (Para_DI.DI5) = 1 Then
   s = s + 32
  End If
  If (Para_DI.DI6) = 1 Then
   s = s + 64
  End If
  If (Para_DI.DI7) = 1 Then
    s = s + 128
  End If
  If (Para_DI.DI8) = 1 Then
   s = s + 256
  End If
  If (Para_DI.DI9) = 1 Then
   s = s + 512
  End If
  If (Para_DI.DI10) = 1 Then
   s = s + 1024
  End If
  If (Para_DI.DI11) = 1 Then
   s = s + 2048
  End If
  If (Para_DI.DI12) = 1 Then
    s = s + 4096
  End If
 s1 = s
 Text1.Text = Format(0, "###0.000")

USB2010_ReleaseDevice hDevice

End Sub
Private Sub Timer1_Timer()
Dim s As Single
s = 0
 hDevice = USB2010_CreateDevice(0)
 If hDevice = INVALID_HANDLE_VALUE Then
   MsgBox "创建设备对象失败"
   Timer1.Enabled = False
   Exit Sub
 End If
  bStatus = USB2010_GetDeviceDI(hDevice, Para_DI)
  If bStatus = False Then
    MsgBox "读数据出错！"
    Exit Sub
  End If
  If (Para_DI.DI0) = 1 Then
    s = s + 1
  End If
  If (Para_DI.DI1) = 1 Then
    s = s + 2
  End If
  If (Para_DI.DI2) = 1 Then
   s = s + 4
  End If
  If (Para_DI.DI3) = 1 Then
   s = s + 8
  End If
  If (Para_DI.DI4) = 1 Then
   s = s + 16
  End If
  If (Para_DI.DI5) = 1 Then
   s = s + 32
  End If
  If (Para_DI.DI6) = 1 Then
   s = s + 64
  End If
  If (Para_DI.DI7) = 1 Then
    s = s + 128
  End If
  If (Para_DI.DI8) = 1 Then
   s = s + 256
  End If
  If (Para_DI.DI9) = 1 Then
   s = s + 512
  End If
  If (Para_DI.DI10) = 1 Then
   s = s + 1024
  End If
  If (Para_DI.DI11) = 1 Then
   s = s + 2048
  End If
  If (Para_DI.DI12) = 1 Then
    s = s + 4096
  End If
  s2 = (s - s1) * dAvg
Text1.Text = Format(s2, "###0.000")
USB2010_ReleaseDevice hDevice
  
End Sub