Touche rapide globale dans l'application console
Quelqu'un sait-il comment utiliser les appels de l'API RegisterHotKey/UnregisterHotKey dans une application console? Je suppose que la configuration/suppression du raccourci clavier est la même, mais comment puis-je récupérer l'appel lorsque la touche a été enfoncée?
Chaque exemple que je vois concerne Winforms et utilise la fonction protected override void WndProc(ref Message m){...}, qui n’est pas disponible pour moi.
mettre à jour: ce que j'ai est en dessous, mais l'événement n'est jamais touché. Je pensais que cela pourrait être parce que lorsque vous chargez ConsoleShell, il bloque toute exécution ultérieure, mais même si je mets
SetupHotkey dans un autre thread, rien ne se passe. Des pensées?class Program
{
static void Main(string[] args)
{
new Hud().Init(args);
}
}
class Hud
{
int keyHookId;
public void Init(string[] args)
{
SetupHotkey();
InitPowershell(args);
Cleanup();
}
private void Cleanup()
{
HotKeyManager.UnregisterHotKey(keyHookId);
}
private void SetupHotkey()
{
keyHookId = HotKeyManager.RegisterHotKey(Keys.Oemtilde, KeyModifiers.Control);
HotKeyManager.HotKeyPressed += new EventHandler<HotKeyEventArgs>(HotKeyManager_HotKeyPressed);
}
void HotKeyManager_HotKeyPressed(object sender, HotKeyEventArgs e)
{
//never executed
System.IO.File.WriteAllText("c:\\keyPressed.txt", "Hotkey pressed");
}
private static void InitPowershell(string[] args)
{
var config = RunspaceConfiguration.Create();
ConsoleShell.Start(config, "", "", args);
}
}
Ce que vous pouvez faire est de créer une fenêtre masquée dans votre application console, qui est utilisée pour gérer la notification de raccourci clavier et déclencher un événement.
Le code ICI montre le principal. HERE est un article sur la gestion des messages dans une application console. Grâce à celui-ci, vous devriez pouvoir améliorer l'exécution de HotKeyManager dans une application console.
La mise à jour suivante du HotKeyManager crée un fil d’arrière-plan qui exécute la boucle de message et gère les messages Windows.
using System;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Threading;
namespace ConsoleHotKey
{
public static class HotKeyManager
{
public static event EventHandler<HotKeyEventArgs> HotKeyPressed;
public static int RegisterHotKey(Keys key, KeyModifiers modifiers)
{
_windowReadyEvent.WaitOne();
int id = System.Threading.Interlocked.Increment(ref _id);
_wnd.Invoke(new RegisterHotKeyDelegate(RegisterHotKeyInternal), _hwnd, id, (uint)modifiers, (uint)key);
return id;
}
public static void UnregisterHotKey(int id)
{
_wnd.Invoke(new UnRegisterHotKeyDelegate(UnRegisterHotKeyInternal), _hwnd, id);
}
delegate void RegisterHotKeyDelegate(IntPtr hwnd, int id, uint modifiers, uint key);
delegate void UnRegisterHotKeyDelegate(IntPtr hwnd, int id);
private static void RegisterHotKeyInternal(IntPtr hwnd, int id, uint modifiers, uint key)
{
RegisterHotKey(hwnd, id, modifiers, key);
}
private static void UnRegisterHotKeyInternal(IntPtr hwnd, int id)
{
UnregisterHotKey(_hwnd, id);
}
private static void OnHotKeyPressed(HotKeyEventArgs e)
{
if (HotKeyManager.HotKeyPressed != null)
{
HotKeyManager.HotKeyPressed(null, e);
}
}
private static volatile MessageWindow _wnd;
private static volatile IntPtr _hwnd;
private static ManualResetEvent _windowReadyEvent = new ManualResetEvent(false);
static HotKeyManager()
{
Thread messageLoop = new Thread(delegate()
{
Application.Run(new MessageWindow());
});
messageLoop.Name = "MessageLoopThread";
messageLoop.IsBackground = true;
messageLoop.Start();
}
private class MessageWindow : Form
{
public MessageWindow()
{
_wnd = this;
_hwnd = this.Handle;
_windowReadyEvent.Set();
}
protected override void WndProc(ref Message m)
{
if (m.Msg == WM_HOTKEY)
{
HotKeyEventArgs e = new HotKeyEventArgs(m.LParam);
HotKeyManager.OnHotKeyPressed(e);
}
base.WndProc(ref m);
}
protected override void SetVisibleCore(bool value)
{
// Ensure the window never becomes visible
base.SetVisibleCore(false);
}
private const int WM_HOTKEY = 0x312;
}
[DllImport("user32", SetLastError=true)]
private static extern bool RegisterHotKey(IntPtr hWnd, int id, uint fsModifiers, uint vk);
[DllImport("user32", SetLastError = true)]
private static extern bool UnregisterHotKey(IntPtr hWnd, int id);
private static int _id = 0;
}
public class HotKeyEventArgs : EventArgs
{
public readonly Keys Key;
public readonly KeyModifiers Modifiers;
public HotKeyEventArgs(Keys key, KeyModifiers modifiers)
{
this.Key = key;
this.Modifiers = modifiers;
}
public HotKeyEventArgs(IntPtr hotKeyParam)
{
uint param = (uint)hotKeyParam.ToInt64();
Key = (Keys)((param & 0xffff0000) >> 16);
Modifiers = (KeyModifiers)(param & 0x0000ffff);
}
}
[Flags]
public enum KeyModifiers
{
Alt = 1,
Control = 2,
Shift = 4,
Windows = 8,
NoRepeat = 0x4000
}
}
Voici un exemple d'utilisation de HotKeyManager à partir d'une application console
using System;
using System.Windows.Forms;
namespace ConsoleHotKey
{
class Program
{
static void Main(string[] args)
{
HotKeyManager.RegisterHotKey(Keys.A, KeyModifiers.Alt);
HotKeyManager.HotKeyPressed += new EventHandler<HotKeyEventArgs>(HotKeyManager_HotKeyPressed);
Console.ReadLine();
}
static void HotKeyManager_HotKeyPressed(object sender, HotKeyEventArgs e)
{
Console.WriteLine("Hit me!");
}
}
}
Je voulais juste offrir une solution alternative.
Je répondais à une question posée à quelqu'un qui utilisait ce script et j'ai pensé que cela pourrait aider quelqu'un d'autre qui a des difficultés à configurer un raccordement de clé global.
Edit: N'oubliez pas d'ajouter une référence à System.Windows.Forms
Vous pouvez le faire en sélectionnant Project ???? Add Reference et en cochant System.Windows.Forms
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Windows.Forms;
namespace ConsoleKeyhook
{
class Hooky
{
///////////////////////////////////////////////////////////
//A bunch of DLL Imports to set a low level keyboard hook
///////////////////////////////////////////////////////////
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern IntPtr SetWindowsHookEx(int idHook,
LowLevelKeyboardProc lpfn, IntPtr hMod, uint dwThreadId);
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool UnhookWindowsHookEx(IntPtr hhk);
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode,
IntPtr wParam, IntPtr lParam);
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern IntPtr GetModuleHandle(string lpModuleName);
////////////////////////////////////////////////////////////////
//Some constants to make handling our hook code easier to read
////////////////////////////////////////////////////////////////
private const int WH_KEYBOARD_LL = 13; //Type of Hook - Low Level Keyboard
private const int WM_KEYDOWN = 0x0100; //Value passed on KeyDown
private const int WM_KEYUP = 0x0101; //Value passed on KeyUp
private static LowLevelKeyboardProc _proc = HookCallback; //The function called when a key is pressed
private static IntPtr _hookID = IntPtr.Zero;
private static bool CONTROL_DOWN = false; //Bool to use as a flag for control key
public static void Main()
{
_hookID = SetHook(_proc); //Set our hook
Application.Run(); //Start a standard application method loop
}
private static IntPtr SetHook(LowLevelKeyboardProc proc)
{
using (Process curProcess = Process.GetCurrentProcess())
using (ProcessModule curModule = curProcess.MainModule)
{
return SetWindowsHookEx(WH_KEYBOARD_LL, proc,
GetModuleHandle(curModule.ModuleName), 0);
}
}
private delegate IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr lParam);
private static IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode >= 0 && wParam == (IntPtr)WM_KEYDOWN) //A Key was pressed down
{
int vkCode = Marshal.ReadInt32(lParam); //Get the keycode
string theKey = ((Keys)vkCode).ToString(); //Name of the key
Console.Write(theKey); //Display the name of the key
if (theKey.Contains("ControlKey")) //If they pressed control
{
CONTROL_DOWN = true; //Flag control as down
}
else if (CONTROL_DOWN && theKey == "B") //If they held CTRL and pressed B
{
Console.WriteLine("\n***HOTKEY PRESSED***"); //Our hotkey was pressed
}
else if (theKey == "Escape") //If they press escape
{
UnhookWindowsHookEx(_hookID); //Release our hook
Environment.Exit(0); //Exit our program
}
}
else if (nCode >= 0 && wParam == (IntPtr)WM_KEYUP) //KeyUP
{
int vkCode = Marshal.ReadInt32(lParam); //Get Keycode
string theKey = ((Keys)vkCode).ToString(); //Get Key name
if (theKey.Contains("ControlKey")) //If they let go of control
{
CONTROL_DOWN = false; //Unflag control
}
}
return CallNextHookEx(_hookID, nCode, wParam, lParam); //Call the next hook
}
}
}
Je suis venu avec une solution basée sur la réponse de Chris qui utilise WPF au lieu de WinForms:
public sealed class GlobalHotkeyRegister : IGlobalHotkeyRegister, IDisposable
{
private const int WmHotkey = 0x0312;
private Application _app;
private readonly Dictionary<Hotkey, Action> _hotkeyActions;
public GlobalHotkeyRegister()
{
_hotkeyActions = new Dictionary<Hotkey, Action>();
var startupTcs = new TaskCompletionSource<object>();
Task.Run(() =>
{
ComponentDispatcher.ThreadPreprocessMessage += OnThreadPreProcessMessage;
_app = new Application();
_app.Startup += (s, e) => startupTcs.SetResult(null);
_app.Run();
});
startupTcs.Task.Wait();
}
public void Add(Hotkey hotkey, Action action)
{
_hotkeyActions.Add(hotkey, action);
var keyModifier = (int) hotkey.KeyModifier;
var key = KeyInterop.VirtualKeyFromKey(hotkey.Key);
_app.Dispatcher.Invoke(() =>
{
if (!RegisterHotKey(IntPtr.Zero, hotkey.GetHashCode(), keyModifier, key))
throw new Win32Exception(Marshal.GetLastWin32Error());
});
}
public void Remove(Hotkey hotkey)
{
_hotkeyActions.Remove(hotkey);
_app.Dispatcher.Invoke(() =>
{
if (!UnregisterHotKey(IntPtr.Zero, hotkey.GetHashCode()))
throw new Win32Exception(Marshal.GetLastWin32Error());
});
}
private void OnThreadPreProcessMessage(ref MSG msg, ref bool handled)
{
if (msg.message != WmHotkey)
return;
var key = KeyInterop.KeyFromVirtualKey(((int) msg.lParam >> 16) & 0xFFFF);
var keyModifier = (KeyModifier) ((int) msg.lParam & 0xFFFF);
var hotKey = new Hotkey(keyModifier, key);
_hotkeyActions[hotKey]();
}
public void Dispose()
{
_app.Dispatcher.InvokeShutdown();
}
[DllImport("user32.dll", SetLastError = true)]
private static extern bool RegisterHotKey(IntPtr hWnd, int id, int fsModifiers, int vlc);
[DllImport("user32.dll", SetLastError = true)]
private static extern bool UnregisterHotKey(IntPtr hWnd, int id);
}
public class Hotkey
{
public Hotkey(KeyModifier keyModifier, Key key)
{
KeyModifier = keyModifier;
Key = key;
}
public KeyModifier KeyModifier { get; }
public Key Key { get; }
#region ToString(), Equals() and GetHashcode() overrides
}
[Flags]
public enum KeyModifier
{
None = 0x0000,
Alt = 0x0001,
Ctrl = 0x0002,
Shift = 0x0004,
Win = 0x0008,
NoRepeat = 0x4000
}
Pour utiliser cela, vous devez ajouter des références à PresentationFramework.dll et WindowsBase.dll.
public static void Main()
{
using (var hotkeyManager = new GlobalHotkeyManager())
{
var hotkey = new Hotkey(KeyModifier.Ctrl | KeyModifier.Alt, Key.S);
hotkeyManager.Add(hotkey, () => System.Console.WriteLine(hotkey));
System.Console.ReadKey();
}
}
Changé la classe HotKeyManager
public static class HotKeyManager
{
public static event EventHandler<HotKeyEventArgs> HotKeyPressed;
public static int RegisterHotKey(Keys key, HotKeyEventArgs.KeyModifiers modifiers)
{
_windowReadyEvent.WaitOne();
_wnd.Invoke(new RegisterHotKeyDelegate(RegisterHotKeyInternal), _hwnd, Interlocked.Increment(ref _id), (uint)modifiers, (uint)key);
return Interlocked.Increment(ref _id);
}
public static void UnregisterHotKey(int id)
{
_wnd.Invoke(new UnRegisterHotKeyDelegate(UnRegisterHotKeyInternal), _hwnd, id);
}
private delegate void RegisterHotKeyDelegate(IntPtr hwnd, int id, uint modifiers, uint key);
private delegate void UnRegisterHotKeyDelegate(IntPtr hwnd, int id);
private static void RegisterHotKeyInternal(IntPtr hwnd, int id, uint modifiers, uint key)
{
RegisterHotKey(hWnd: hwnd, id: id, fsModifiers: modifiers, vk: key);
}
private static void UnRegisterHotKeyInternal(IntPtr hwnd, int id)
{
UnregisterHotKey(_hwnd, id);
}
private static void OnHotKeyPressed(HotKeyEventArgs e)
{
HotKeyPressed?.Invoke(null, e);
}
private static volatile MessageWindow _wnd;
private static volatile IntPtr _hwnd;
private static ManualResetEvent _windowReadyEvent = new ManualResetEvent(false);
static HotKeyManager()
{
new Thread(delegate ()
{
Application.Run(new MessageWindow());
})
{
Name = "MessageLoopThread",
IsBackground = true
}.Start();
}
private class MessageWindow : Form
{
public MessageWindow()
{
_wnd = this;
_hwnd = Handle;
_windowReadyEvent.Set();
}
protected override void WndProc(ref Message m)
{
if (m.Msg == WM_HOTKEY)
{
var e = new HotKeyEventArgs(hotKeyParam: m.LParam);
OnHotKeyPressed(e);
}
base.WndProc(m: ref m);
}
protected override void SetVisibleCore(bool value)
{
// Ensure the window never becomes visible
base.SetVisibleCore(false);
}
private const int WM_HOTKEY = 0x312;
}
[DllImport("user32", SetLastError = true)]
private static extern bool RegisterHotKey(IntPtr hWnd, int id, uint fsModifiers, uint vk);
[DllImport("user32", SetLastError = true)]
private static extern bool UnregisterHotKey(IntPtr hWnd, int id);
private static int _id = 0;
}
Classe HotKeyEventArgs:
public partial class HotKeyEventArgs : EventArgs
{
public readonly Keys Key;
public readonly KeyModifiers Modifiers;
public HotKeyEventArgs(Keys key, KeyModifiers modifiers)
{
Key = key;
Modifiers = modifiers;
}
public HotKeyEventArgs(IntPtr hotKeyParam)
{
Key = (Keys)(((uint)hotKeyParam.ToInt64() & 0xffff0000) >> 16);
Modifiers = (KeyModifiers)((uint)hotKeyParam.ToInt64() & 0x0000ffff);
}
}
Et classe: HotKeyEventArgs
public partial class HotKeyEventArgs
{
[Flags]
public enum KeyModifiers
{
Alt = 1,
Control = 2,
Shift = 4,
Windows = 8,
NoRepeat = 0x4000
}
}