The function is used to read the controller parameters, for example, the device ID, door sensor type, driving time of the lock, and read interval.
[in]: The handle that is returned when the connection is successful.
[in]: The buffer used to receive the returned data; the returned data is expressed in a text format;
if the returned data is multiple params, the multiple params are separated by commas.
[in] The size of the buffer used to receive the returned data.
[in]: The parameter names of the device to be read; the multiple parameter names are separated by commas;
you can read at most 30 parameters at a time (Attached table 1 lists the parameter value attributes).
When the returned value is 0 , it indicates that the operation is successful. When the returned value is a negative value,
it indicates that the operation fails. Attached table 5 lists the information about the error codes.
SetDeviceParam
[DllImport("plcommpro.dll", EntryPoint = "GetDeviceParam")]
public static extern int GetDeviceParam(IntPtr h, ref byte buffer, int buffersize, string itemvalues);
private void GetDeviceParam_Pull()
{
Connect_Pull();
string valuesToRead = "GATEIPAddress,NetMask";
int ret = 0;
int BUFFERSIZE = 10 * 1024 * 1024;
byte[] buffer = new byte[BUFFERSIZE];
string tmp = null;
ret = GetDeviceParam(h, ref buffer[0], BUFFERSIZE, valuesToRead);
tmp = Encoding.Default.GetString(buffer);
MessageBox.Show("GetDeviceParam: " + tmp + ".");
Disconnect_pull();
}
<DllImport("plcommpro.dll", EntryPoint:="GetDeviceParam")>
Public Shared Function GetDeviceParam(h As IntPtr, ByRef buffer As Byte, buffersize As Integer, itemvalues As String) As Integer
End Function
Private Sub GetDeviceParam_Pull()
Connect_Pull()
Dim valuesToRead As String = "GATEIPAddress,NetMask"
Dim ret As Integer = 0
Dim BUFFERSIZE As Integer = 10 * 1024 * 1024
Dim buffer As Byte() = New Byte(BUFFERSIZE - 1) {}
Dim tmp As String = Nothing
ret = GetDeviceParam(h, buffer(0), BUFFERSIZE, valuesToRead)
tmp = Encoding.[Default].GetString(buffer)
MessageBox.Show((Convert.ToString("GetDeviceParam: ") & tmp) + ".")
Disconnect_pull()
End Sub
<DllImport("plcommpro.dll", EntryPoint:="GetDeviceData")>
Public Shared Function GetDeviceData(h As IntPtr, ByRef buffer As Byte, buffersize As Integer, tablename As String, filename As String, filter As String,
options As String) As Integer
End Function