Add a command line parameter --remoteaccess to connect to instance

* This is useful in e.g. a renderdoc-aware application that has voluntarily
  injected renderdoc, and then wants to boot the UI to automatically open
  up the management connection

renderdocui/Code/AppMain.cs

@@ -29,6 +29,7 @@ using System.Linq;
 using System.Text;
 using System.IO;
 using System.Windows.Forms;
+using System.Text.RegularExpressions;
 using renderdoc;
 
 namespace renderdocui.Code
@@ -74,6 +75,32 @@ namespace renderdocui.Code
                     temp = true;
             }
 
+            string remoteHost = "";
+            uint remoteIdent = 0;
+
+            for (int i = 0; i < args.Length; i++)
+            {
+                if (args[i].ToLowerInvariant() == "--remoteaccess" && i + 1 < args.Length)
+                {
+                    var regexp = @"^([a-zA-Z0-9_-]+:)?([0-9]+)$";
+
+                    var match = Regex.Match(args[i+1], regexp);
+
+                    if (match.Success)
+                    {
+                        var host = match.Groups[1].Value;
+                        if (host != "" && host[host.Length - 1] == ':')
+                            host = host.Substring(0, host.Length - 1);
+                        uint ident = 0;
+                        if (uint.TryParse(match.Groups[2].Value, out ident))
+                        {
+                            remoteHost = host;
+                            remoteIdent = ident;
+                        }
+                    }
+                }
+            }
+
             if (args.Length > 0 && File.Exists(args[args.Length - 1]))
             {
                 filename = args[args.Length - 1];
@@ -107,7 +134,7 @@ namespace renderdocui.Code
 
             Application.CurrentCulture = new System.Globalization.CultureInfo("en-GB");
 
-            var core = new Core(filename, temp, cfg);
+            var core = new Core(filename, remoteHost, remoteIdent, temp, cfg);
 
             try
             {

renderdocui/Code/Core.cs

@@ -146,13 +146,13 @@ namespace renderdocui.Code
 
         #region Init and Shutdown
 
-        public Core(string paramFilename, bool temp, PersistantConfig config)
+        public Core(string paramFilename, string remoteHost, uint remoteIdent, bool temp, PersistantConfig config)
         {
             if (!Directory.Exists(ConfigDirectory))
                 Directory.CreateDirectory(ConfigDirectory);
 
             m_Config = config;
-            m_MainWindow = new MainWindow(this, paramFilename, temp);
+            m_MainWindow = new MainWindow(this, paramFilename, remoteHost, remoteIdent, temp);
         }
 
         public void Shutdown()

renderdocui/Windows/MainWindow.cs

@@ -66,6 +66,8 @@ namespace renderdocui.Windows
 
         private Core m_Core;
         private string m_InitFilename;
+        private string m_InitRemoteHost;
+        private uint m_InitRemoteIdent;
 
         private List<LiveCapture> m_LiveCaptures = new List<LiveCapture>();
 
@@ -123,7 +125,7 @@ namespace renderdocui.Windows
             }
         }
 
-        public MainWindow(Core core, string initFilename, bool temp)
+        public MainWindow(Core core, string initFilename, string remoteHost, uint remoteIdent, bool temp)
         {
             InitializeComponent();
 
@@ -141,6 +143,8 @@ namespace renderdocui.Windows
 
             m_Core = core;
             m_InitFilename = initFilename;
+            m_InitRemoteHost = remoteHost;
+            m_InitRemoteIdent = remoteIdent;
             OwnTemporaryLog = temp;
 
             logStatisticsToolStripMenuItem.Enabled = false;
@@ -190,6 +194,12 @@ namespace renderdocui.Windows
             PopulateRecentFiles();
             PopulateRecentCaptures();
 
+            if (m_InitRemoteIdent != 0)
+            {
+                var live = new LiveCapture(m_Core, m_InitRemoteHost, m_InitRemoteIdent, this);
+                ShowLiveCapture(live);
+            }
+
             if (m_InitFilename != "")
             {
                 if(Path.GetExtension(m_InitFilename) == ".rdc")