ShareX/Greenshot.ImageEditor/Controls/ToolStripEx.cs
campbeb 2c35af0592 Merge Greenshot changes through 22 May 2016
Merge commits from Greenshot up through
bd71f47e95a46642fe6a83bdd76cc4d2a7eed7c2.

Some bug fixes, but mostly structural cleanup.
2016-05-22 11:17:02 -04:00

71 lines
2.3 KiB
C#

/*
* Greenshot - a free and open source screenshot tool
* Copyright (C) 2007-2015 Thomas Braun, Jens Klingen, Robin Krom
*
* For more information see: http://getgreenshot.org/
* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
*
* This program 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 1 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
using System;
using System.Windows.Forms;
namespace Greenshot.Controls
{
/// <summary>
/// This is an extension of the default ToolStrip and allows us to click it even when the form doesn't have focus.
/// See: http://blogs.msdn.com/b/rickbrew/archive/2006/01/09/511003.aspx
/// </summary>
internal class ToolStripEx : ToolStrip
{
private const int WM_MOUSEACTIVATE = 0x21;
private enum NativeConstants : uint
{
MA_ACTIVATE = 1,
MA_ACTIVATEANDEAT = 2,
}
private bool _clickThrough = false;
/// <summary>
/// Gets or sets whether the ToolStripEx honors item clicks when its containing form does not have input focus.
/// </summary>
/// <remarks>
/// Default value is false, which is the same behavior provided by the base ToolStrip class.
/// </remarks>
public bool ClickThrough
{
get
{
return _clickThrough;
}
set
{
_clickThrough = value;
}
}
protected override void WndProc(ref Message m)
{
base.WndProc(ref m);
if (_clickThrough && m.Msg == WM_MOUSEACTIVATE && m.Result == (IntPtr)NativeConstants.MA_ACTIVATEANDEAT)
{
m.Result = (IntPtr)NativeConstants.MA_ACTIVATE;
}
}
}
}