废话少说，直接上代码。
1、VB ActiveEXE 工程。
2、Form1 + Module1 + Class1
3、Form1 Code
Private Sub Form_Unload(Cancel As Integer)
Set oClass1 = nothing
End Sub
4、Module1 Code
Option Explicit
Public oClass1 As Class1
Sub Main()
Set oClass1 = New Class1
Form1.Show
End Sub
5、Class1 Code
Option Explicit
Private mPatientID As String
Private Type GUIDs
Data1 As Long
Data2 As Integer
Data3 As Integer
Data4(0 To 7) As Byte
End Type
'Declares needed to register object in the ROT (Run Object Table)
Private Const ACTIVEOBJECT_STRONG = 0
Private Const ACTIVEOBJECT_WEAK = 1
Private Declare Function CLSIDFromProgID Lib "ole32.dll" (ByVal ProgID As Long,rclsid As GUIDs) As Long
Private Declare Function CodisconnectObject Lib "ole32.dll" (ByVal pUnk As IUnkNown,pvReserved As Long) As Long
Private Declare Function RegisteractiveObject Lib "oleaut32.dll" (ByVal pUnk As IUnkNown,rclsid As GUIDs,ByVal dwFlags As Long,pdwRegister As Long) As Long
Private Declare Function RevokeActiveObject Lib "oleaut32.dll" (ByVal dwRegister As Long,ByVal pvReserved As Long) As Long
Private OLEInstance As Long
Public Property Let PatientID(ByVal Value As String)
mPatientID = Value
End Property
Public Property Get PatientID() As String
PatientID = mPatientID
End Property
Public Sub AddToROT()
Dim mGuid As GUIDs
Dim lp As Long
'The magic happens here 'This code is responsible for creating the entry in the ROT
'Make sure to insert the correct qualified object (class) that
'you want in the ROT.
OLEInstance = 0
lp = CLSIDFromProgID(StrPtr("Project1.Class1"),mGuid)
If lp = 0 Then
lp = RegisteractiveObject(Me,mGuid,ACTIVEOBJECT_WEAK,OLEInstance)
End If
End Sub
Public Sub RemoveFromrOT()
'Once we are done with the main program,lets clean up the rot
'by removing the entry for our ActiveX Server/DLL
If OLEInstance <> 0 Then
RevokeActiveObject OLEInstance,0
End If
CodisconnectObject Me,0
End Sub
Private Sub Class_Initialize()
AddToROT
mPatientID = "123456"
End Sub
Private Sub Class_Terminate()
RemoveFromrOT
End Sub
6、编译，生成EXE，运行。
7、Test Code
Private Sub Command1_Click()
Dim oTestObject As Object
Set oTestObject = Getobject(,"Project1.Class1")
If oTestObject Is nothing Then
MsgBox "Error"
Else
MsgBox oTestObject.patientid
End If
End Sub