1 files changed, 19 insertions, 0 deletions
diff --git a/ShiftOS.WinForms/Tools/ControlManager.cs b/ShiftOS.WinForms/Tools/ControlManager.cs
index c5b073f..f9fb799 100644
--- a/ShiftOS.WinForms/Tools/ControlManager.cs
+++ b/ShiftOS.WinForms/Tools/ControlManager.cs
@@ -26,6 +26,7 @@ using System;
 using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;
+using System.Runtime.InteropServices;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;
@@ -37,6 +38,22 @@ namespace ShiftOS.WinForms.Tools
 {
     public static class ControlManager
     {
+        [DllImport("user32.dll")]
+        public static extern int SendMessage(IntPtr hWnd, Int32 wMsg, bool wParam, Int32 lParam);
+
+        private const int WM_SETREDRAW = 11;
+
+        public static void SuspendDrawing(Control parent)
+        {
+            SendMessage(parent.Handle, WM_SETREDRAW, false, 0);
+        }
+
+        public static void ResumeDrawing(Control parent)
+        {
+            SendMessage(parent.Handle, WM_SETREDRAW, true, 0);
+            parent.Refresh();
+        }
+
         public static void Close(this UserControl ctrl)
         {
             for (int i = 0; i < AppearanceManager.OpenForms.Count; i++)
@@ -157,6 +174,7 @@ namespace ShiftOS.WinForms.Tools
 
         public static void SetupControl(Control ctrl)
         {
+            SuspendDrawing(ctrl);
             SetCursor(ctrl);
             if (!(ctrl is MenuStrip) && !(ctrl is ToolStrip) && !(ctrl is StatusStrip) && !(ctrl is ContextMenuStrip))
             {
@@ -225,6 +243,7 @@ namespace ShiftOS.WinForms.Tools
             }
 
             MakeDoubleBuffered(ctrl);
+            ResumeDrawing(ctrl);
         }
 
         public static void MakeDoubleBuffered(Control c)