From 09806d5f14b98d68ba6085bc328e505fe7f0da07 Mon Sep 17 00:00:00 2001
From: Justin Aquadro <jaquadro@gmail.com>
Date: Sat, 25 May 2013 01:11:05 -0400
Subject: [PATCH] Somewhat reduce flickering on select changes

---
 .../MultiSelectTreeView/MultiSelectTreeview.cs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/Vendor/MultiSelectTreeView/MultiSelectTreeview.cs b/Vendor/MultiSelectTreeView/MultiSelectTreeview.cs
index 26e0a3e..d8c41ee 100644
--- a/Vendor/MultiSelectTreeView/MultiSelectTreeview.cs
+++ b/Vendor/MultiSelectTreeView/MultiSelectTreeview.cs
@@ -23,6 +23,8 @@ namespace NBTExplorer.Vendor.MultiSelectTreeView
 			}
 			set
 			{
+                BeginUpdate();
+
 				ClearSelectedNodes();
 				if( value != null )
 				{
@@ -31,6 +33,8 @@ namespace NBTExplorer.Vendor.MultiSelectTreeView
 						ToggleNode( node, true );
 					}
 				}
+
+                EndUpdate();
 			}
 		}
 
@@ -53,6 +57,8 @@ namespace NBTExplorer.Vendor.MultiSelectTreeView
 
 		public MultiSelectTreeView()
 		{
+            SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint, true);
+
 			m_SelectedNodes = new List<TreeNode>();
 			base.SelectedNode = null;
 		}
@@ -581,5 +587,17 @@ namespace NBTExplorer.Vendor.MultiSelectTreeView
 		}
 
 		#endregion
+
+        private const int WM_ERASEBKGND = 0x14;
+
+        protected override void WndProc (ref Message m)
+        {
+            if (m.Msg == WM_ERASEBKGND) //if message is is erase background
+            {
+                return;
+            }
+
+            base.WndProc(ref m);
+        }
 	}
 }