From 855daf9d4325b74b689176f489ee8cb58e430c4d Mon Sep 17 00:00:00 2001
From: gobbo1008 <technofreak91@web.de>
Date: Fri, 15 Sep 2017 10:33:55 +0200
Subject: [PATCH] Fix for TreeView

Fixes #1
---
 ESOResearchNotifier/Form1.Designer.cs |  4 ++--
 ESOResearchNotifier/Form1.cs          | 27 +++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/ESOResearchNotifier/Form1.Designer.cs b/ESOResearchNotifier/Form1.Designer.cs
index 40505cc..64c8699 100644
--- a/ESOResearchNotifier/Form1.Designer.cs
+++ b/ESOResearchNotifier/Form1.Designer.cs
@@ -37,7 +37,7 @@ private void InitializeComponent()
             this.menuItemMute = new System.Windows.Forms.ToolStripMenuItem();
             this.menuItemExit = new System.Windows.Forms.ToolStripMenuItem();
             this.groupBox1 = new System.Windows.Forms.GroupBox();
-            this.treeView1 = new System.Windows.Forms.TreeView();
+            this.treeView1 = new FixedTreeView();
             this.cboNotifyStyle = new System.Windows.Forms.ComboBox();
             this.groupBox2 = new System.Windows.Forms.GroupBox();
             this.cboTimeout = new System.Windows.Forms.ComboBox();
@@ -291,7 +291,7 @@ private void InitializeComponent()
         private System.Windows.Forms.FlowLayoutPanel panelResearch;
         private System.Windows.Forms.LinkLabel linkLabel2;
         private System.Windows.Forms.ToolTip toolTip1;
-        private System.Windows.Forms.TreeView treeView1;
+        private FixedTreeView treeView1;
         private System.Windows.Forms.GroupBox groupBox3;
     }
 }
diff --git a/ESOResearchNotifier/Form1.cs b/ESOResearchNotifier/Form1.cs
index b2e1bd9..27967fb 100644
--- a/ESOResearchNotifier/Form1.cs
+++ b/ESOResearchNotifier/Form1.cs
@@ -414,4 +414,31 @@ public class TreeMetaNode: TreeNode
     {
         public object MetaValue { get; set; }
     }
+
+    public partial class FixedTreeView : TreeView
+    {
+        private const int WM_LBUTTONDBLCLK = 0x0203;
+        private const int WM_RBUTTONDOWN = 0x0204;
+        protected override void WndProc(ref Message m)
+        {
+            if (m.Msg == WM_LBUTTONDBLCLK)
+            {
+                // disable double-click on checkbox to fix Microsoft Vista bug
+                TreeViewHitTestInfo tvhti = HitTest(new System.Drawing.Point((int)m.LParam));
+                if (tvhti != null && tvhti.Location == TreeViewHitTestLocations.StateImage)
+                {
+                    m.Result = IntPtr.Zero;
+                    return;
+                }
+            }
+            else if (m.Msg == WM_RBUTTONDOWN)
+            {
+                // set focus to node on right-click - another Microsoft bug?
+                TreeViewHitTestInfo tvhti = HitTest(new System.Drawing.Point((int)m.LParam));
+                if (tvhti != null)
+                    this.SelectedNode = tvhti.Node;
+            }
+            base.WndProc(ref m);
+        }
+    }
 }
\ No newline at end of file