1. SDK
  2. Standalone
  3. Common Functions
  4. Others
  5. GetLastError

GetLastError

Definition

Usage

Obtain the last error information.

Parameter

Error code returned. Values are as follows:

-100 Operation failed or data not exist
-10 Transmitted data length is incorrect
-5 Data already exists
-4 Space is not enough
-3 Error size
-2 Error in file read/write
-1 SDK is not initialized and needs to be reconnected
0 Data not found or data repeated
1 Operation is correct
4 Parameter is incorrect
101 Error in allocating buffer

Return Value

None

Related Function

Return True if it is successful, or return False.

 

Ejemplo

C# 

private static void GetLastError(string sIp = "10.0.0.44", int iPort = 4370)
{
    //Create Standalone SDK class dynamicly.
    zkemkeeper.CZKEMClass axCZKEM1 = new zkemkeeper.CZKEMClass();
    axCZKEM1.Connect_Net(sIp, iPort);
    int idwErrorCode = 0;
    axCZKEM1.GetLastError(ref idwErrorCode);
    MessageBox.Show("The Last Error is ,ErrorCode=" + idwErrorCode.ToString(), "Error");
}

VB 

Private Shared Sub GetLastError(Optional ByVal sIp As String = "10.0.0.44", Optional ByVal iPort As Integer = 4370)
    'Create Standalone SDK class dynamicly.
    Dim axCZKEM1 As New zkemkeeper.CZKEM
    axCZKEM1.Connect_Net(sIp, iPort)
    Dim idwErrorCode As Integer
    axCZKEM1.GetLastError(idwErrorCode)
    MsgBox("The Last Error is ,ErrorCode=" + idwErrorCode.ToString(), "Error")
End Sub