在网上搜了好久终于找到了解决办法,就是网上说的比较多的那种方法,实现IObjectSafety接口
其实网上的那种方式是可用的,在此再记录一下,也希望对没有解决此问题的朋友有帮助.
1.创建一个文件夹,复制下述代码
[
uuid(C67830E0-D11D-11cf-BD80-00AA00575603),
helpstring("VB IObjectSafety Interface"),
version(1.0)
]
library IObjectSafetyTLB
{
importlib("stdole2.tlb");
[
uuid(CB5BDC81-93C1-11cf-8F20-00805F2CD064),
helpstring("IObjectSafety Interface"),
odl
]
interface IObjectSafety:IUnknown {
[helpstring("GetInterfaceSafetyOptions")]
HRESULT GetInterfaceSafetyOptions(
[in] long riid,
[in] long *pdwSupportedOptions,
[in] long *pdwEnabledOptions);
[helpstring("SetInterfaceSafetyOptions")]
HRESULT SetInterfaceSafetyOptions(
[in] long riid,
[in] long dwOptionsSetMask,
[in] long dwEnabledOptions);
}
}
将上面这段代码复制下来,在新建的文件夹中用记事本建立一个文件,将代码粘贴进去,然后将文件名改为objsafe.odl(一定要是odl格式的).
2.在vb的安装盘上,有个COMMON\TOOLS\VB\UNSUPPRT\TYPLIB所有的文件拷贝到新建的文件夹中. 双击运行其中的MKTYPLIB.EXE(最好不要在命令行下运行,命令行下运行的可能会报错) , 会提示选择odl文件,选择刚才建立的那个objsafe.odl文件,然后就可以创建出objsafe.tlb文件(备用)
3.下面开始做activex控件.
打开vb6,新建一个activex 控件(英文版的activex control)工程 ,
默认会有一个类似窗体的UserControl1控件.
建议最好改一下名,如将工程名改为TestPro,将控件名改为TestControl.
菜单: 工程---引用 点击浏览,找到刚才创建的objsafe.tlb 确定.
在工程上 右键 添加模块 , 创建一个名为basSafeCtl.bas的模块,并将下面的代码复制到模块中.
Option Explicit
Public Const IID_IDispatch = "{00020400-0000-0000-C000-000000000046}"
Public Const IID_IPersistStorage = _
"{0000010A-0000-0000-C000-000000000046}"
Public Const IID_IPersistStream = _
"{00000109-0000-0000-C000-000000000046}"
Public Const IID_IPersistPropertyBag = _
"{37D84F60-42CB-11CE-8135-00AA004BB851}"
Public Const INTERFACESAFE_FOR_UNTRUSTED_CALLER = &H1
Public Const INTERFACESAFE_FOR_UNTRUSTED_DATA = &H2
Public Const E_NOINTERFACE = &H80004002
Public Const E_FAIL = &H80004005
Public Const MAX_GUIDLEN = 40
Public Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" _
(pDest As Any, pSource As Any, ByVal ByteLen As Long)
Public Declare Function StringFromGUID2 Lib "ole32.dll" (rguid As _
Any, ByVal lpstrClsId As Long, ByVal cbMax As Integer) As Long
Public Type udtGUID
Data1 As Long
Data2 As Integer
Data3 As Integer
Data4(7) As Byte
End Type
Public m_fSafeForScripting As Boolean
Public m_fSafeForInitializing As Boolean
Sub Main()
m_fSafeForScripting = True
m_fSafeForInitializing = True
End Sub
双击控件(TestControl),
在代码区的声明部分添加:
Implements IObjectSafety
并将下面的代码复制到代码区
Private Sub IObjectSafety_GetInterfaceSafetyOptions(ByVal riid As _
Long, pdwSupportedOptions As Long, pdwEnabledOptions As Long)
Dim Rc As Long
Dim rClsId As udtGUID
Dim IID As String
Dim bIID() As Byte
pdwSupportedOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER Or _
INTERFACESAFE_FOR_UNTRUSTED_DATA
If (riid <> 0) Then
CopyMemory rClsId, ByVal riid, Len(rClsId)
bIID = String$(MAX_GUIDLEN, 0)
Rc = StringFromGUID2(rClsId, VarPtr(bIID(0)), MAX_GUIDLEN)
Rc = InStr(1, bIID, vbNullChar) - 1
IID = Left$(UCase(bIID), Rc)
Select Case IID
Case IID_IDispatch
pdwEnabledOptions = IIf(m_fSafeForScripting, _
INTERFACESAFE_FOR_UNTRUSTED_CALLER, 0)
Exit Sub
Case IID_IPersistStorage, IID_IPersistStream, _
IID_IPersistPropertyBag
pdwEnabledOptions = IIf(m_fSafeForInitializing, _
INTERFACESAFE_FOR_UNTRUSTED_DATA, 0)
Exit Sub
Case Else
Err.Raise E_NOINTERFACE
Exit Sub
End Select
End If
End Sub
Private Sub IObjectSafety_SetInterfaceSafetyOptions(ByVal riid As _
Long, ByVal dwOptionsSetMask As Long, ByVal dwEnabledOptions As Long)
Dim Rc As Long
Dim rClsId As udtGUID
Dim IID As String
Dim bIID() As Byte
If (riid <> 0) Then
CopyMemory rClsId, ByVal riid, Len(rClsId)
bIID = String$(MAX_GUIDLEN, 0)
Rc = StringFromGUID2(rClsId, VarPtr(bIID(0)), MAX_GUIDLEN)
Rc = InStr(1, bIID, vbNullChar) - 1
IID = Left$(UCase(bIID), Rc)
Select Case IID
Case IID_IDispatch
If ((dwEnabledOptions And dwOptionsSetMask) <> _
INTERFACESAFE_FOR_UNTRUSTED_CALLER) Then
Err.Raise E_FAIL
Exit Sub
Else
If Not m_fSafeForScripting Then
Err.Raise E_FAIL
End If
Exit Sub
End If
Case IID_IPersistStorage, IID_IPersistStream, _
IID_IPersistPropertyBags
If ((dwEnabledOptions And dwOptionsSetMask) <> _
INTERFACESAFE_FOR_UNTRUSTED_DATA) Then
Err.Raise E_FAIL
Exit Sub
Else
If Not m_fSafeForInitializing Then
Err.Raise E_FAIL
End If
Exit Sub
End If
Case Else
Err.Raise E_NOINTERFACE
Exit Sub
End Select
End If
End Sub
4. 然后,在 菜单: 工程 --- Test属性(即本工程的属性) 里 ,通用tab页中,将启动对象选择为Sub Main , 确保自己添加的模块能被运行到.
然后可以自己在控件中加一个按钮 ,并在按钮事件中弹出一条信息 MsgBox("test")
5. 生成ocx(文件---生成Test.ocx) 并注册(regsvr32 路径\Test.ocx)
6. 写一个html页面进行测试
就不会出现烦人的 提示框了.
附上 vb 安装目录下的 typlib文件夹的内容.