C# 如何调用VB6.0编写的dll

<p>C# 如何调用VB6.0编写的dll
/*---------------VB Dll代码如下-------------------------*/</p><p> </p>

VERSION 1.0 CLASS
BEGIN
MultiUse = -1  'True
Persistable = 0  'NotPersistable
DataBindingBehavior = 0  'vbNone
DataSourceBehavior  = 0  'vbNone
MTSTransactionMode  = 0  'NotAnMTSObject
END
Attribute VB_Name = "Class1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = True

Public Function jia(a As Integer, b As Integer, c As Integer) As Boolean

If a = 1 And b = 2 And c = 3 Then

jia = True

End If

End Function
//////////////////////////////////////////////////

调用步骤如下：

1.
Copy *.dll to windows\system32

2.
注册*.dll (在system32目录下运行regsvr32 *.dll)

3.
C# project 添加引用，在COM组件里可以找到已经注册的*.dll组件名称，选中后点击确定

4. C# 添加 using *

/*------------------------C# 调用代码如下-----------------------------------*/

private void button1_Click(object sender, EventArgs e)
{
jiafa.Class1 add = new Class1();
if (add.jia(1, 2, 3))
MessageBox.Show("成功调用VB dll");
}