38.5.2.4 VB6程序示例 - 数据读/写示例(寄存器访问API)

示例程序位置：(GP-Pro EX光盘)\WinGP\SDK\Pro-SDK\VB\EasySmpl

Option Explicit
 
Private Sub Form_Load()
 
 Dim iResult As Long
 
 iResult = EasyInit()
 If iResult Then
Dim sErrMsg As String
 Dim iMsgResult As Long
 iMsgResult = EasyLoadErrorMessageEx(iResult, sErrMsg)
 End If
 
End Sub
 
' ----------------------------------------------
' WriteDeviceXXX()
' ----------------------------------------------
 
Private Sub WriteBit_Click()
 
 '写入数据
 Dim nDataAry(1) As Integer
 nDataAry(0) = CInt(Val(Me.WBuf_Bit.Text))
 
 ' 写入。
 Dim iResult As Long
 iResult = WriteDeviceBit("#WinGP", "Buf_Bit", nDataAry(0), 1)
 ' 此处使用了在GP-Pro EX中配置的 "Buf_16" (USR201)。
'您也可以直接指定寄存器地址。
' 38.5.2.2 如何直接指定寄存器地址
 If iResult Then
 Dim sErrMsg As String * 512
 Dim iMsgResult As Long
iMsgResult = EasyLoadErrorMessageEx(iResult, sErrMsg)
 MsgBox (sErrMsg)
 End If
 
End Sub
 
Private Sub Write16_Click()
 
 '写入数据。
 Dim nDataAry(1) As Integer
 nDataAry(0) = CInt(Val(Me.WBuf_16.Text))
 
 '写入。
 Dim iResult As Long
 iResult = WriteDevice16("#WinGP", "Buf_16", nDataAry(0), 1)
 If iResult Then
 Dim sErrMsg As String * 512
 Dim iMsgResult As Long
 iMsgResult = EasyLoadErrorMessageEx(iResult, sErrMsg)
 MsgBox (sErrMsg)
 End If
 
End Sub
 
Private Sub Write32_Click()
 
 '写入数据。
 Dim nDataAry(1) As Long
 nDataAry(0) = CLng(Val(Me.WBuf_32.Text))
 
 '写入。
 Dim iResult As Long
 iResult = WriteDevice32("#WinGP", "Buf_32", nDataAry(0), 1)
 If iResult Then
 Dim sErrMsg As String * 512
 Dim iMsgResult As Long
 iMsgResult = EasyLoadErrorMessageEx(iResult, sErrMsg)
 MsgBox (sErrMsg)
 End If
 
End Sub
 
Private Sub WriteFloat_Click()
 
 '写入数据。
 Dim nDataAry(1) As Single
 nDataAry(0) = CSng(Val(Me.WBuf_Float.Text))
 
 ' 写入。
 Dim iResult As Long
 iResult = WriteDeviceFloat("#WinGP", "Buf_Float", nDataAry(0), 1)
 If iResult Then
 Dim sErrMsg As String * 512
 Dim iMsgResult As Long
 iMsgResult = EasyLoadErrorMessageEx(iResult, sErrMsg)
 MsgBox (sErrMsg)
 End If
 
End Sub
 
Private Sub WriteDouble_Click()
 
 '写入数据。
 Dim nDataAry(1) As Double
 nDataAry(0) = CDbl(Val(Me.WBuf_Double.Text))
 
 '写入。
 Dim iResult As Long
 iResult = WriteDeviceDouble("#WinGP", "Buf_Double", nDataAry(0), 1)
 If iResult Then
 Dim sErrMsg As String * 512
 Dim iMsgResult As Long
 iMsgResult = EasyLoadErrorMessageEx(iResult, sErrMsg)
 MsgBox (sErrMsg)
 End If
 
End Sub
 
Private Sub WriteString_Click()
 
 '写入数据。
 Dim nDataAry As String
 nDataAry = Me.WBuf_Str.Text
 
 '写入。
 Dim iResult As Long
 iResult = WriteDeviceStr("#WinGP", "Buf_Str", nDataAry, 10)
 If iResult Then
 Dim sErrMsg As String * 512
 Dim iMsgResult As Long
 iMsgResult = EasyLoadErrorMessageEx(iResult, sErrMsg)
 MsgBox (sErrMsg)
 End If
 
End Sub
 
' ----------------------------------------------
' ReadDeviceXXX()
' ----------------------------------------------
 
Private Sub ReadBit_Click()
 
 ' 读取数据。
 Dim nDataAry(1) As Integer
 
 '读取。
 Dim iResult As Long
 iResult = ReadDeviceBit("#WinGP", "Buf_Bit", nDataAry(0), 1)
 If iResult Then
 Dim sErrMsg As String * 512
 Dim iMsgResult As Long
 iMsgResult = EasyLoadErrorMessage(iResult, sErrMsg)
 MsgBox (sErrMsg)
 End If
 
 Me.Buf_Bit.Text = CStr(nDataAry(0))
 
End Sub
 
Private Sub Read16_Click()
 
 '读取数据。
 Dim nDataAry(1) As Integer
 
 '读取。
 Dim iResult As Long
 iResult = ReadDevice16("#WinGP", "Buf_16", nDataAry(0), 1)
 If iResult Then
 Dim sErrMsg As String * 512
 Dim iMsgResult As Long
 iMsgResult = EasyLoadErrorMessage(iResult, sErrMsg)
 MsgBox (sErrMsg)
 End If
 
 Me.Buf_16.Text = CStr(nDataAry(0))
 
End Sub
 
Private Sub Read32_Click()
 
 '读取数据。
 Dim nDataAry(1) As Long
 
 '读取。
 Dim iResult As Long
 iResult = ReadDevice32("#WinGP", "Buf_32", nDataAry(0), 1)
 If iResult Then
 Dim sErrMsg As String * 512
 Dim iMsgResult As Long
 iMsgResult = EasyLoadErrorMessage(iResult, sErrMsg)
 MsgBox (sErrMsg)
 End If
 
 Me.Buf_32.Text = CStr(nDataAry(0))
 
End Sub
 
Private Sub ReadFloat_Click()
 
 '读取数据。
 Dim nDataAry(1) As Single
 
 '读取。
 Dim iResult As Long
 iResult = ReadDeviceFloat("#WinGP", "Buf_Float", nDataAry(0), 1)
 If iResult Then
 Dim sErrMsg As String * 512
 Dim iMsgResult As Long
 iMsgResult = EasyLoadErrorMessage(iResult, sErrMsg)
 MsgBox (sErrMsg)
 End If
 
 Me.Buf_Float.Text = CStr(nDataAry(0))
 
End Sub
 
Private Sub ReadDouble_Click()
 
 '读取数据。
 Dim nDataAry(1) As Double
 
 '读取。
 Dim iResult As Long
 iResult = ReadDeviceDouble("#WinGP", "Buf_Double", nDataAry(0), 1)
 If iResult Then
 Dim sErrMsg As String * 512
 Dim iMsgResult As Long
 iMsgResult = EasyLoadErrorMessage(iResult, sErrMsg)
 MsgBox (sErrMsg)
 End If
 
 Me.Buf_Double.Text = CStr(nDataAry(0))
 
End Sub
 
Private Sub ReadString_Click()
 
 '读取数据。
 Dim nDataAry As String * 255
 
 '读取。
 Dim iResult As Long
 iResult = ReadDeviceStr("#WinGP", "Buf_Str", nDataAry, 10)
 If iResult Then
 Dim sErrMsg As String * 512
 Dim iMsgResult As Long
 iMsgResult = EasyLoadErrorMessage(iResult, sErrMsg)
 MsgBox (sErrMsg)
 End If
 
 Me.Buf_Str.Text = nDataAry
 
End Sub