以编程方式启动Visual Studio; C＃相当于VB的CreateObject（“VisualStudio.DTE.8.0”）

Question

我可以从VBScript启动一个新的隐藏Visual Studio进程，并通过以下方式以编程方式驱动它：

Set DTE = CreateObject("VisualStudio.DTE.8.0")
DTE.DoStuff()

我如何在C＃中做到这一点？ （ 编辑：使用正确的类型，而不是该VBScript代码使用的通用COM对象。）

我试过这个：

using EnvDTE;
...
DTE dte = new DTE();

但我得到“检索CLSID {3C9CFE1E-389F-4118-9FAD-365385190329}组件的COM类工厂失败”。

Answer 1

我找到了答案（感谢Sebastiaan Megens让我走上正轨）：

[STAThread]
static void Main(string[] args)
{
    System.Type t = System.Type.GetTypeFromProgID("VisualStudio.DTE.8.0", true);
    DTE2 dte = (EnvDTE80.DTE2)System.Activator.CreateInstance(t, true);

    // See http://msdn.microsoft.com/en-us/library/ms228772.aspx for the
    // code for MessageFilter - just paste it in.
    MessageFilter.Register();

    dte.DoStuff();
    dte.Quit();
}

public class MessageFilter : IOleMessageFilter
{
   ... Continues at http://msdn.microsoft.com/en-us/library/ms228772.aspx

（STAThread和MessageFilter的废话是“由于外部多线程应用程序和Visual Studio之间的线程争用问题”，无论这意味着什么。粘贴在http://msdn.microsoft.com/en-us/library/的代码中ms228772.aspx使它工作。）

Answer 2

我不知道如何启动Visual Studio的新实例，但我通过调用使用现有实例：

EnvDTE.DTE dte = (EnvDTE.DTE)System.Runtime.InteropServices.Marshal.GetActiveObject("VisualStudio.DTE.8.0"); 

也许创建一个新实例是类似的？ 希望这个对你有帮助。

问候，

Sebastiaan

Answer 3

用于VB的CreateObject的Microsoft源代码。

    <HostProtection(Resources:=HostProtectionResource.ExternalProcessMgmt)> _ 
    <SecurityPermissionAttribute(SecurityAction.Demand, Flags:=SecurityPermissionFlag.UnmanagedCode)> _
    Public Function CreateObject(ByVal ProgId As String, Optional ByVal ServerName As String = "") As Object
        'Creates local or remote COM2 objects.  Should not be used to create COM+ objects.
        'Applications that need to be STA should set STA either on their Sub Main via STAThreadAttribute 
        'or through Thread.CurrentThread.ApartmentState - the VB runtime will not change this.
        'DO NOT SET THREAD STATE - Thread.CurrentThread.ApartmentState = ApartmentState.STA 

        Dim t As Type

        If ProgId.Length = 0 Then
            Throw VbMakeException(vbErrors.CantCreateObject)
        End If

        If ServerName Is Nothing OrElse ServerName.Length = 0 Then
            ServerName = Nothing 
        Else 
            'Does the ServerName match the MachineName?
            If String.Compare(Environment.MachineName, ServerName, StringComparison.OrdinalIgnoreCase) = 0 Then 
                ServerName = Nothing
            End If
        End If

        Try
            If ServerName Is Nothing Then 
                t = Type.GetTypeFromProgID(ProgId) 
            Else
                t = Type.GetTypeFromProgID(ProgId, ServerName, True) 
            End If

            Return System.Activator.CreateInstance(t)
        Catch e As COMException 
            If e.ErrorCode = &H800706BA Then
                '&H800706BA = The RPC Server is unavailable
                Throw VbMakeException(vbErrors.ServerNotFound) 
            Else 
                Throw VbMakeException(vbErrors.CantCreateObject)
            End If 
        Catch ex As StackOverflowException
            Throw ex
        Catch ex As OutOfMemoryException
            Throw ex 
        Catch ex As System.Threading.ThreadAbortException
            Throw ex 
        Catch e As Exception 
            Throw VbMakeException(vbErrors.CantCreateObject)
        End Try 
    End Function

Answer 4

简单回答：在VB中编写，编译，用Reflector打开它，并在c＃模式下反编译！