mirror of
https://github.com/greenshot/greenshot
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a22b7578bd
git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@693 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
87 lines
2.6 KiB
C#
87 lines
2.6 KiB
C#
/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2010 Thomas Braun, Jens Klingen, Robin Krom
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*
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* For more information see: http://getgreenshot.org/
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* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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using System.Windows.Forms;
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using Greenshot.Plugin;
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namespace Greenshot.Helpers {
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/// <summary>
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/// Description of HotkeyHelper.
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/// </summary>
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public class HotkeyHelper {
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private static log4net.ILog LOG = log4net.LogManager.GetLogger(typeof(HotkeyHelper));
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private const int WM_HOTKEY = 0x312;
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public const int VK_SNAPSHOT = 0x2C;
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#region enums
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public enum Modifiers : int {
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NONE = 0,
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ALT = 1,
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CTRL = 2,
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SHIFT = 4,
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WIN = 8
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}
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#endregion
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// Holds the list of hotkeys
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private static Dictionary<int, HotKeyHandler> keyHandlers = new Dictionary<int, HotKeyHandler>();
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private static int hotKeyCounter = 0;
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private HotkeyHelper() {
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}
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#region User32
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[DllImport("user32.dll")]
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private static extern bool RegisterHotKey (int hwnd, int id, int fsModifiers, int vk);
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[DllImport("user32.dll")]
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private static extern bool UnregisterHotKey (int hwnd, int id);
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#endregion
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public static bool RegisterHotKey(int hnd, int modifierKeyCode, int virtualKeyCode, HotKeyHandler handler) {
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if (RegisterHotKey(hnd, hotKeyCounter, modifierKeyCode, virtualKeyCode)) {
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keyHandlers.Add(hotKeyCounter, handler);
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hotKeyCounter++;
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return true;
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} else {
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LOG.Warn(String.Format("Couldn't register hotkey modifier {0} virtualKeyCode {1}", modifierKeyCode, virtualKeyCode));
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return false;
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}
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}
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public static void UnregisterHotkeys(int hnd) {
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foreach(int hotkey in keyHandlers.Keys) {
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UnregisterHotKey(hnd, hotkey);
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}
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}
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public static void HandleMessages(ref Message m) {
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if (m.Msg == WM_HOTKEY) {
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// Call handler
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keyHandlers[(int)m.WParam]();
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}
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}
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}
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}
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