VB进程间互访 - 代码(纪念VB)
1、VB ActiveEXE 工程。
2、Form1 + Module1 + Class1
3、Form1 Code
Private Sub Form_Unload(Cancel As Integer) Set oClass1 = NothingEnd Sub
Option ExplicitPublic oClass1 As Class1Sub Main() Set oClass1 = New Class1 Form1.ShowEnd Sub
Option ExplicitPrivate mPatientID As StringPrivate Type GUIDs Data1 As Long Data2 As Integer Data3 As Integer Data4(0 To 7) As ByteEnd Type'Declares needed to register object in the ROT (Run Object Table)Private Const ACTIVEOBJECT_STRONG = 0Private Const ACTIVEOBJECT_WEAK = 1Private Declare Function CLSIDFromProgID Lib "ole32.dll" (ByVal ProgID As Long, rclsid As GUIDs) As LongPrivate Declare Function CoDisconnectObject Lib "ole32.dll" (ByVal pUnk As IUnknown, pvReserved As Long) As LongPrivate Declare Function RegisterActiveObject Lib "oleaut32.dll" (ByVal pUnk As IUnknown, rclsid As GUIDs, ByVal dwFlags As Long, pdwRegister As Long) As LongPrivate Declare Function RevokeActiveObject Lib "oleaut32.dll" (ByVal dwRegister As Long, ByVal pvReserved As Long) As LongPrivate OLEInstance As LongPublic Property Let PatientID(ByVal Value As String) mPatientID = ValueEnd PropertyPublic Property Get PatientID() As String PatientID = mPatientIDEnd PropertyPublic 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 IfEnd SubPublic 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, 0End SubPrivate Sub Class_Initialize() AddToROT mPatientID = "123456"End SubPrivate Sub Class_Terminate() RemoveFromROTEnd Sub
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 IfEnd Sub