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source: branches/HeuristicLab.Hive.Azure/HeuristicLab.MainForm.WindowsForms/3.3/Controls/ControlExtensions.cs @ 7270

Last change on this file since 7270 was 7270, checked in by spimming, 12 years ago

#1680:

  • merged changes from trunk into branch
File size: 1.8 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2012 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Runtime.InteropServices;
24using System.Windows.Forms;
25
26namespace HeuristicLab.MainForm.WindowsForms {
27  public static class ControlExtensions {
28    [DllImport("user32.dll")]
29    private static extern int SendMessage(IntPtr hWnd, Int32 wMsg, bool wParam, Int32 lParam);
30
31    private const int WM_SETREDRAW = 11;
32
33    public static void SuspendRepaint(this Control control) {
34      if (control.InvokeRequired)
35        control.Invoke(new Action<Control>(c => c.SuspendRepaint()), control);
36      else
37        SendMessage(control.Handle, WM_SETREDRAW, false, 0);
38    }
39    public static void ResumeRepaint(this Control control, bool refresh) {
40      if (control.InvokeRequired)
41        control.Invoke(new Action<Control, bool>((c, b) => c.ResumeRepaint(b)), control, refresh);
42      else {
43        SendMessage(control.Handle, WM_SETREDRAW, true, 0);
44        if (refresh) control.Refresh();
45      }
46    }
47  }
48}
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