XpandPosh

1.1.8

Public/Get-DTE.cs

using System;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
using EnvDTE;
  
public class AutomateVS
{
    [DllImport("ole32.dll")]
    private static extern int CreateBindCtx(uint reserved, out IBindCtx ppbc);
  
    public static DTE GetDTE(int processId)
    {
        string progId = "!VisualStudio.DTE.10.0:" + processId.ToString();
        object runningObject = null;
  
        IBindCtx bindCtx = null;
        IRunningObjectTable rot = null;
        IEnumMoniker enumMonikers = null;
  
        try
        {
            Marshal.ThrowExceptionForHR(CreateBindCtx(reserved: 0, ppbc: out bindCtx));
            bindCtx.GetRunningObjectTable(out rot);
            rot.EnumRunning(out enumMonikers);
  
            IMoniker[] moniker = new IMoniker[1];
            IntPtr numberFetched = IntPtr.Zero;
            while (enumMonikers.Next(1, moniker, numberFetched) == 0)
            {
                IMoniker runningObjectMoniker = moniker[0];
  
                string name = null;
  
                try
                {
                    if (runningObjectMoniker != null)
                    {
                        runningObjectMoniker.GetDisplayName(bindCtx, null, out name);
                    }
                }
                catch (UnauthorizedAccessException)
                {
                    // Do nothing, there is something in the ROT that we do not have access to.
                }
  
                if (!string.IsNullOrEmpty(name) && string.Equals(name, progId, StringComparison.Ordinal))
                {
                    Marshal.ThrowExceptionForHR(rot.GetObject(runningObjectMoniker, out runningObject));
                    break;
                }
            }
        }
        finally
        {
            if (enumMonikers != null)
            {
                Marshal.ReleaseComObject(enumMonikers);
            }
  
            if (rot != null)
            {
                Marshal.ReleaseComObject(rot);
            }
  
            if (bindCtx != null)
            {
                Marshal.ReleaseComObject(bindCtx);
            }
        }
  
        return (DTE)runningObject;
    }
  
    static void Main(string[] args)
    {
        var devenv = System.Diagnostics.Process.Start("devenv.exe");
  
        DTE dte = null;
        do
        {
            System.Threading.Thread.Sleep(2000);
            dte = GetDTE(devenv.Id);
        }
        while (dte == null);
  
        dte.ExecuteCommand("View.CommandWindow");
        dte.StatusBar.Text = "Hello World!";
        System.Threading.Thread.Sleep(2000);
        dte.ExecuteCommand("File.Exit");
        devenv.WaitForExit();
        Marshal.ReleaseComObject(dte);
    }
}