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| * using System;
* using System.Windows.Forms;
* using System.Runtime.InteropServices;
* using System.Collections;
*
* namespace CSUtils.Classes
* {
* /// <summary>
* /// Description résumée de Hotkey.
* /// </summary>
* public class HotKey : NativeWindow
* {
* private const int WM_HOTKEY = 0x312;
*
* /// <summary>
* /// HotKeyModifiers énumération
* /// </summary>
* [Flags]
* public enum HotKeyModifiers : int {
* Alt = 0x1,
* Control = 0x2,
* Shift = 0x4,
* Win = 0x8
* }
*
* private struct HotKeyData {
* public Keys Key;
* public HotKeyModifiers Modifiers;
* public IntPtr AtomID;
*
* public static HotKeyData Empty = new HotKeyData();
*
* public HotKeyData(Keys key, HotKeyModifiers modifiers, IntPtr atomId) {
* this.Key = key;
* this.Modifiers = modifiers;
* this.AtomID = atomId;
* }
*
* public override string ToString() {
* return Modifiers.ToString() + "+" + Key.ToString();
* }
*
* public override int GetHashCode() {
* return base.GetHashCode ();
* }
*
* public override bool Equals(object obj) {
* return this.AtomID.Equals (obj);
* }
*
* }
*
*
* private ArrayList hotkeys;
* private Form owner;
*
* public delegate void HotKeyHandler(object sender, HotKeyArgs args);
* public event HotKeyHandler HotKeyPress;
*
* public HotKey(Form owner) {
* this.AssignHandle(owner.Handle);
* this.owner = owner;
* owner.HandleCreated += new EventHandler(owner_HandleCreated);
*
* hotkeys = new ArrayList();
* }
*
* public void RegisterHotKey(Keys key, HotKeyModifiers modifiers) {
* if (!FindHotKey(key, modifiers).Equals(HotKeyData.Empty)) {
* this.registerHotKey(key, modifiers);
* }
* }
*
* public void UnregisterHotKey(Keys key, HotKeyModifiers modifiers) {
* HotKeyData hkData = FindHotKey(key, modifiers);
*
* if (!hkData.Equals(HotKeyData.Empty)) {
* unregisterHotKey(hkData);
* hotkeys.Remove(hkData);
* }
* }
*
* private HotKeyData FindHotKey(Keys key, HotKeyModifiers modifiers) {
* HotKeyData hkData;
* for (int i=0; i<this.hotkeys.Count; i++) {
* hkData = (HotKeyData)hotkeys[i];
* if (hkData.Key == key && hkData.Modifiers == modifiers) {
* return hkData;
* }
* }
*
* return HotKeyData.Empty;
* }
*
* protected override void WndProc(ref Message m) {
* base.WndProc (ref m);
* HotKeyData hkData;
* if (m.Msg == WM_HOTKEY) {
* for (int i=0; i<hotkeys.Count; i++) {
* hkData = (HotKeyData)hotkeys[i];
* if (hkData.Equals(m.WParam)) {
* if (this.HotKeyPress != null) {
* HotKeyPress(this.owner,
* new HotKeyArgs(hkData.Key, hkData.Modifiers));
* }
* break;
* }
* }
* }
* }
*
*
* /// <summary>
* /// Destructeur de la classe.
* /// Il faut libérer les raccourcis créés
* /// </summary>
* ~HotKey() {
* HotKeyData hkData;
* for (int i=hotkeys.Count-1; i>=0; i--) {
* hkData = (HotKeyData)hotkeys[i];
* this.unregisterHotKey(hkData);
* }
* }
*
* #region P/Invoke
* [DllImport("kernel32.dll", SetLastError=true, CharSet=CharSet.Auto)]
* private static extern IntPtr GlobalAddAtom(string lpString);
*
* [DllImport("kernel32.dll", SetLastError=true, ExactSpelling=true)]
* private static extern IntPtr GlobalDeleteAtom(IntPtr nAtom);
*
* [DllImport("user32.dll")]
* private static extern bool RegisterHotKey(IntPtr hWnd, int id, int fsModifiers, int vk);
*
* [DllImport("user32.dll")]
* private static extern bool UnregisterHotKey(IntPtr hWnd, int id);
* #endregion
*
* private void registerHotKey(Keys key, HotKeyModifiers modifiers) {
* string atomName = string.Empty;
* IntPtr atomId;
* atomName = key.ToString() + modifiers.ToString() + Environment.TickCount.ToString();
* if (atomName.Length > 255) {
* atomName = atomName.Substring(0,255);
* }
*
* atomId = GlobalAddAtom(atomName);
* if (atomId == IntPtr.Zero) {
* throw new Exception("Impossible d'enregistrer l'atome du raccourci !");
* }
*
* if (!RegisterHotKey(this.Handle, atomId.ToInt32(), (int)modifiers, (int)key)) {
* GlobalDeleteAtom(atomId);
* throw new Exception("Impossible d'enregistrer le raccourci !");
* }
*
* this.hotkeys.Add(new HotKeyData(key, modifiers, atomId));
* }
*
* private void unregisterHotKey(HotKeyData hk) {
* UnregisterHotKey(this.Handle, hk.AtomID.ToInt32());
* GlobalDeleteAtom(hk.AtomID);
* }
*
*
* private void owner_HandleCreated(object sender, EventArgs e) {
* this.AssignHandle(owner.Handle);
* }
* }
*
* #region Classe HotKeyArgs
* public class HotKeyArgs : EventArgs {
* public HotKeyArgs(Keys key, HotKey.HotKeyModifiers modifiers) {
* this.modifiers = modifiers;
* this.key = key;
* }
*
* private Keys key;
* public Keys Key {
* get {return key;}
* }
*
* private HotKey.HotKeyModifiers modifiers;
* public HotKey.HotKeyModifiers Modifiers {
* get {return modifiers;}
* }
* }
* #endregion
* } |
