#region License Information /* HeuristicLab * Copyright (C) 2002-2019 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * HeuristicLab is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with HeuristicLab. If not, see . */ #endregion using System; using System.Collections.Generic; using System.Runtime.InteropServices; using System.Windows.Forms; namespace HeuristicLab.MainForm.WindowsForms { public static class ControlExtensions { [DllImport("user32.dll")] private static extern int SendMessage(IntPtr hWnd, Int32 wMsg, bool wParam, Int32 lParam); private const int WM_SETREDRAW = 11; public static void SuspendRepaint(this Control control) { if (control.InvokeRequired) control.Invoke(new Action(c => c.SuspendRepaint()), control); else SendMessage(control.Handle, WM_SETREDRAW, false, 0); } public static void ResumeRepaint(this Control control, bool refresh) { if (control.InvokeRequired) control.Invoke(new Action((c, b) => c.ResumeRepaint(b)), control, refresh); else { SendMessage(control.Handle, WM_SETREDRAW, true, 0); if (refresh) control.Refresh(); } } } }