Try to improve control flicker

NBTExplorer/Interop.cs

@@ -0,0 +1,64 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace NBTExplorer
+{
+    internal static class Interop
+    {
+        public static bool WinInteropAvailable
+        {
+            get { return IsWindows && Type.GetType("Mono.Runtime") == null; }
+        }
+
+        public static bool IsWindows
+        {
+            get { return Environment.OSVersion.Platform == PlatformID.Win32NT; }
+        }
+
+        public static bool IsWinXP
+        {
+            get
+            {
+                OperatingSystem OS = Environment.OSVersion;
+                return (OS.Platform == PlatformID.Win32NT) &&
+                    ((OS.Version.Major > 5) || ((OS.Version.Major == 5) && (OS.Version.Minor == 1)));
+            }
+        }
+
+        public static bool IsWinVista
+        {
+            get
+            {
+                OperatingSystem OS = Environment.OSVersion;
+                return (OS.Platform == PlatformID.Win32NT) && (OS.Version.Major >= 6);
+            }
+        }
+
+        public static IntPtr SendMessage (IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam)
+        {
+            if (WinInteropAvailable)
+                return NativeInterop.SendMessage(hWnd, msg, wParam, lParam);
+            else
+                return IntPtr.Zero;
+        }
+    }
+
+    internal static class NativeInterop
+    {
+        public const int WM_PRINTCLIENT = 0x0318;
+        public const int PRF_CLIENT = 0x00000004;
+
+        public const int TV_FIRST = 0x1100;
+        public const int TVM_SETBKCOLOR = TV_FIRST + 29;
+        public const int TVM_SETEXTENDEDSTYLE = TV_FIRST + 44;
+
+        public const int TVS_EX_DOUBLEBUFFER = 0x0004;
+
+        [DllImport("user32.dll")]
+        public static extern IntPtr SendMessage (IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);
+
+        
+
+        
+    }
+}

NBTExplorer/NBTExplorer.csproj

@@ -12,6 +12,7 @@
     <AssemblyName>NBTExplorer</AssemblyName>
     <TargetFrameworkVersion>v2.0</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
+    <IsWebBootstrapper>false</IsWebBootstrapper>
     <PublishUrl>publish\</PublishUrl>
     <Install>true</Install>
     <InstallFrom>Disk</InstallFrom>
@@ -24,7 +25,6 @@
     <MapFileExtensions>true</MapFileExtensions>
     <ApplicationRevision>0</ApplicationRevision>
     <ApplicationVersion>1.0.0.%2a</ApplicationVersion>
-    <IsWebBootstrapper>false</IsWebBootstrapper>
     <UseApplicationTrust>false</UseApplicationTrust>
     <BootstrapperEnabled>true</BootstrapperEnabled>
   </PropertyGroup>
@@ -100,6 +100,7 @@
     <Compile Include="Controllers\NodeTreeController.cs" />
     <Compile Include="FormRegistry.cs" />
     <Compile Include="Controllers\RuleTreeController.cs" />
+    <Compile Include="Interop.cs" />
     <Compile Include="Model\Search\SearchRule.cs" />
     <Compile Include="NbtClipboardController.cs" />
     <Compile Include="SnapshotList.cs" />

NBTExplorer/Vendor/MultiSelectTreeView/MultiSelectTreeview.cs

@@ -11,7 +11,6 @@ namespace NBTExplorer.Vendor.MultiSelectTreeView
 {
 	public class MultiSelectTreeView : TreeView
 	{
-
 		#region Selected Node(s) Properties
 
 		private List<TreeNode> m_SelectedNodes = null;		
@@ -57,14 +56,40 @@ namespace NBTExplorer.Vendor.MultiSelectTreeView
 
 		public MultiSelectTreeView()
 		{
+            DoubleBuffered = true;
+
             SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint, true);
 
 			m_SelectedNodes = new List<TreeNode>();
 			base.SelectedNode = null;
 		}
 
+        private void UpdateExtendedStyles ()
+        {
+            if (Interop.WinInteropAvailable) {
+                int style = 0;
+
+                if (DoubleBuffered)
+                    style |= NativeInterop.TVS_EX_DOUBLEBUFFER;
+
+                if (style != 0)
+                    Interop.SendMessage(Handle, NativeInterop.TVM_SETEXTENDEDSTYLE, (IntPtr)NativeInterop.TVS_EX_DOUBLEBUFFER, (IntPtr)style);
+            }
+        }
+
 		#region Overridden Events
 
+        protected override void OnHandleCreated (EventArgs e)
+        {
+            base.OnHandleCreated(e);
+            
+            if (Interop.WinInteropAvailable) {
+                UpdateExtendedStyles();
+                if (!Interop.IsWinXP)
+                    Interop.SendMessage(Handle, NativeInterop.TVM_SETBKCOLOR, IntPtr.Zero, (IntPtr)ColorTranslator.ToWin32(BackColor));
+            }
+        }
+
 		protected override void OnGotFocus( EventArgs e )
 		{
 			// Make sure at least one node has a selection