BAPI / RFC with Delphi(系列之三)－－TSAPLogonControl使用(无对话框的登录sap的delphi源代码)

1、新建一个Form，并在form上添加下列控件

Component	Function
SAPLogOnControl1	SAP ActiveX-Component to logon to the system
Button1	Button to start the procedure

2、源代码如下
 

unit s_logon;

interface

uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
ExtCtrls, OleCtrls, SAPLogonCtrl_TLB, StdCtrls,Grids ;

type
  TForm1 = class(TForm)
  SAPLogonControl1: TSAPLogonControl;
  Panel1: TPanel;
  Edit1: TEdit;
  Edit2: TEdit;
  Label1: TLabel;
  Label2: TLabel;
  StaticText1: TStaticText;
  Button1: TButton;
  procedure SAPLogonControl1Click(Sender: TObject);
  procedure Button1Click(Sender: TObject);
private
{ Private-Deklarationen }
public
{ Public-Deklarationen }
end;

var
Form1: TForm1;
Connection :variant;

implementation

{$R *.DFM}

procedure TForm1.SAPLogonControl1Click(Sender: TObject);
begin

  (* define connection and it's parameters *)
  Connection := SAPLogoncontrol1.newConnection;

  (* In some GUI-versions the username *)
  (* must be written in uppercase !!!  *)
  Connection.User := AnsiUpperCase(Edit1.text);

  Connection.System            := 'IDS';
  Connection.Client            := '800';
  Connection.ApplicationServer := 'SAPIDES';
  Connection.SystemNumber      := '00';
  Connection.Password          := Edit2.text;
  Connection.Language          := 'DE' ;
  SAPLogonControl1.Enabled     := false;

  if Connection.LogOn(0,true) = true then
  (* parameter "true" : SilentLogOn *)

  begin
    ShowMessage('Logon O.K.');
    Button1.Enabled:= true;
  end
  else
  begin
    ShowMessage('Error on logon :-(((');
    SAPLogonControl1.Enabled:=true;
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin

  (* cut connection *)
  Connection.LogOff;

  ShowMessage('System LogOff...');
  SAPLogonControl1.Enabled:=true;
  Button1.Enabled :=false;
end;
end.

wdtfuncs   SAP data type not supported

error on line:
Set i_TABNAME = Func.Exports("TABNAME")

Here is my VB code:

Option Explicit

Public Functions As SAPFunctionsOCX.SAPFunctions
Private LogonControl As SAPLogonCtrl.SAPLogonControl
Private R3Connection As SAPLogonCtrl.Connection
Private TableFactory As SAPTableFactory

Dim Func As SAPFunctionsOCX.Function

Public i_TABNAME  As SAPFunctionsOCX.Parameter

Public i_FIELD  As SAPFunctionsOCX.Parameter
Public i_LANGU  As SAPFunctionsOCX.Parameter

Public strLabel  As SAPFunctionsOCX.Parameter

'Public tENTRIES  As SAPTableFactoryCtrl.Table

Public Sub Main()
    Dim ix As Integer
    Dim retcd As Boolean
    Dim SilentLogon As Boolean
    Set LogonControl = CreateObject("SAP.LogonControl.1")
    Set Functions = CreateObject("SAP.Functions")
    Set TableFactory = CreateObject("SAP.TableFactory.1")
    Set R3Connection = LogonControl.NewConnection
    R3Connection.client = "000"
    R3Connection.ApplicationServer = "A1KGNB09"
    R3Connection.language = "DE"
    R3Connection.User = "BCUSER"
    R3Connection.Password = "minisap"
    R3Connection.System = "A1 SAP 620 09"
    R3Connection.SystemID = "000"
    R3Connection.SystemNumber = "00"
    R3Connection.UseSAPLogonIni = False
    SilentLogon = False
   
    retcd = R3Connection.Logon(0, SilentLogon)
    If retcd <> True Then MsgBox "Logon failed": Exit Sub
   
    Functions.Connection = R3Connection
    Set Func = Functions.Add("DDIF_FIELDLABEL_GET")
    Set i_TABNAME = Func.Exports("TABNAME")
    Set i_FIELD = Func.Exports("FIELDNAME")
    Set i_LANGU = Func.Exports("LANGU")
    Set strLabel = Func.Imports("LABEL")
    i_TABNAME.Value = "USR02"
    i_FIELD.Value = "BNAME"
    i_LANGU.Value = "DE"
    Func.Call  
    MsgBox strLabel
'    Debug.Print eNUMBER_OF_ENTRIES
'    For ix = 1 To tENTRIES.RowCount
'        Debug.Print tENTRIES(ix, 1)
'    Next
    R3Connection.Logoff
End Sub