两个应用之间的数据交换

时间:2014-03-05 14:52:20

标签: c vb.net dde data-exchange

我有两个申请 第一个用C编程 第二个用VB.NET

我想执行第一个并保持状态更新到第二个

有办法吗?

我可以更改其中任何一个的源代码

2 个答案:

答案 0 :(得分:0)

我可以看到使用C和VB有并发症,但这里是一个开始的地方 http://msdn.microsoft.com/en-us/library/aa365574%28VS.85%29.aspx

答案 1 :(得分:0)

好的,在VB中你需要在两个程序之间实现一个接口,这样你就可以在它们之间传递参数。

  • 记得导入“system”和“system.reflection”

在program1(调用程序)中我设置了它:

Dim oType As System.Type
Dim oAssembly As System.Reflection.Assembly
Dim oObject As System.Object

oAssembly = Reflection.Assembly.LoadFrom("C:\VB.NET\report3.exe")
oType = oAssembly.GetType("report3.r1") ' this is [root_namespace.class name]
oObject = Activator.CreateInstance(oType)
oObject.SetParams("a", "b")
oObject.show()

这会导致report3.exe运行并将“a”和“b”参数作为值发送给它。

然后在program2(report3.exe)中,我将其设置为:

Imports System.Reflection

Public Class r1

    Implements IPlugin

    Public person As String = ""
    Public address As String = ""


    Private Sub r1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load

        Me.TopMost = True 'optional

        Dim b1 As New Label()
        With b1
            .Location = New Point(10, 10)
            .Width = 200
            .Height = 20
            .Parent = Me
            .BackColor = Color.Blue
            .ForeColor = Color.White
            .Text = person
        End With

        call_addr()
    End Sub


    Public Sub SetParams(c As String, d As String) Implements IPlugin.SetParams
        person = c
        address = d
    End Sub

    Private Sub call_addr()
        Dim b2 As New Label()
        With b2
            .Location = New Point(10, 50)
            .Width = 200
            .Height = 20
            .Parent = Me
            .BackColor = Color.Red
            .text = address
        End With
    End Sub

End Class


Public Interface IPlugin
    Sub SetParams(ByVal c As String, ByVal d As String)
End Interface