C# 我如何注册一个全局热键来表示CTRL+；班次+；（信件）使用WPF和.NET3.5？
我正在用WPF在C#中构建一个应用程序。我怎样才能绑定到一些钥匙上C# 我如何注册一个全局热键来表示CTRL+；班次+；（信件）使用WPF和.NET3.5？,c#,.net,wpf,windows,hotkeys,C#,.net,Wpf,Windows,Hotkeys,我正在用WPF在C#中构建一个应用程序。我怎样才能绑定到一些钥匙上 另外，如何绑定到？我不确定WPF，但这可能会有所帮助。我使用了中描述的解决方案（当然根据我的需要进行了修改），用于C#Windows窗体应用程序，在Windows中分配一个CTRL-KEY组合以显示C#窗体，它工作得很好（即使在Windows Vista上也是如此）。我希望这会有帮助，祝你好运 John建议的RegisterHotKey（）可能有效-唯一的问题是它需要一个HWND（使用PresentationSource.Fro
另外，如何绑定到？我不确定WPF，但这可能会有所帮助。我使用了中描述的解决方案（当然根据我的需要进行了修改），用于C#Windows窗体应用程序，在Windows中分配一个CTRL-KEY组合以显示C#窗体，它工作得很好（即使在Windows Vista上也是如此）。我希望这会有帮助，祝你好运 John建议的RegisterHotKey（）可能有效-唯一的问题是它需要一个HWND（使用
PresentationSource.FromVisual（）但是，您还需要响应
WM_热键UIElementInputBindingCommandBindingSaveAllKey.LWinKey.RWinpublic WindowMain()
{
InitializeComponent();
// Bind Key
var ib = new InputBinding(
MyAppCommands.SaveAll,
new KeyGesture(Key.S, ModifierKeys.Shift | ModifierKeys.Control));
this.InputBindings.Add(ib);
// Bind handler
var cb = new CommandBinding( MyAppCommands.SaveAll);
cb.Executed += new ExecutedRoutedEventHandler( HandlerThatSavesEverthing );
this.CommandBindings.Add (cb );
}
private void HandlerThatSavesEverthing (object obSender, ExecutedRoutedEventArgs e)
{
// Do the Save All thing here.
}
如果要混合使用Win32和WPF，请看我是如何做到的：
using System;
using System.Runtime.InteropServices;
using System.Windows.Interop;
using System.Windows.Media;
using System.Threading;
using System.Windows;
using System.Windows.Input;
namespace GlobalKeyboardHook
{
public class KeyboardHandler : IDisposable
{
public const int WM_HOTKEY = 0x0312;
public const int VIRTUALKEYCODE_FOR_CAPS_LOCK = 0x14;
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool RegisterHotKey(IntPtr hWnd, int id, int fsModifiers, int vlc);
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool UnregisterHotKey(IntPtr hWnd, int id);
private readonly Window _mainWindow;
WindowInteropHelper _host;
public KeyboardHandler(Window mainWindow)
{
_mainWindow = mainWindow;
_host = new WindowInteropHelper(_mainWindow);
SetupHotKey(_host.Handle);
ComponentDispatcher.ThreadPreprocessMessage += ComponentDispatcher_ThreadPreprocessMessage;
}
void ComponentDispatcher_ThreadPreprocessMessage(ref MSG msg, ref bool handled)
{
if (msg.message == WM_HOTKEY)
{
//Handle hot key kere
}
}
private void SetupHotKey(IntPtr handle)
{
RegisterHotKey(handle, GetType().GetHashCode(), 0, VIRTUALKEYCODE_FOR_CAPS_LOCK);
}
public void Dispose()
{
UnregisterHotKey(_host.Handle, GetType().GetHashCode());
}
}
}
干杯！尽管有时RegisterHotKey正是您想要的，但在大多数情况下，您可能不想使用系统范围的热键。我最终使用了如下代码：
使用System.Windows；
使用System.Windows.Interop；
名称空间WpfApp
{
公共部分类主窗口：窗口
{
常数int WM_KEYUP=0x0101；
const int VK_RETURN=0x0D；
const int VK_LEFT=0x25；
公共主窗口（）
{
this.InitializeComponent（）；
ComponentDispatcher.ThreadPreprocessMessage+=
组件调度程序线程预处理消息；
}
无效组件Dispatcher\u线程预处理消息(
ref MSG MSG，ref bool（已处理）
{
如果（msg.message==WM\u KEYUP）
{
if（（int）msg.wParam==VK_RETURN）
MessageBox.Show（“返回被按下”）；
if（（int）msg.wParam==VK_左）
MessageBox.Show（“按下左键”）；
}
}
}
}
_hotKey = new HotKey(Key.F9, KeyModifier.Shift | KeyModifier.Win, OnHotKeyHandler);
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Net.Mime;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows;
using System.Windows.Input;
using System.Windows.Interop;
namespace UnManaged
{
public class HotKey : IDisposable
{
private static Dictionary<int, HotKey> _dictHotKeyToCalBackProc;
[DllImport("user32.dll")]
private static extern bool RegisterHotKey(IntPtr hWnd, int id, UInt32 fsModifiers, UInt32 vlc);
[DllImport("user32.dll")]
private static extern bool UnregisterHotKey(IntPtr hWnd, int id);
public const int WmHotKey = 0x0312;
private bool _disposed = false;
public Key Key { get; private set; }
public KeyModifier KeyModifiers { get; private set; }
public Action<HotKey> Action { get; private set; }
public int Id { get; set; }
// ******************************************************************
public HotKey(Key k, KeyModifier keyModifiers, Action<HotKey> action, bool register = true)
{
Key = k;
KeyModifiers = keyModifiers;
Action = action;
if (register)
{
Register();
}
}
// ******************************************************************
public bool Register()
{
int virtualKeyCode = KeyInterop.VirtualKeyFromKey(Key);
Id = virtualKeyCode + ((int)KeyModifiers * 0x10000);
bool result = RegisterHotKey(IntPtr.Zero, Id, (UInt32)KeyModifiers, (UInt32)virtualKeyCode);
if (_dictHotKeyToCalBackProc == null)
{
_dictHotKeyToCalBackProc = new Dictionary<int, HotKey>();
ComponentDispatcher.ThreadFilterMessage += new ThreadMessageEventHandler(ComponentDispatcherThreadFilterMessage);
}
_dictHotKeyToCalBackProc.Add(Id, this);
Debug.Print(result.ToString() + ", " + Id + ", " + virtualKeyCode);
return result;
}
// ******************************************************************
public void Unregister()
{
HotKey hotKey;
if (_dictHotKeyToCalBackProc.TryGetValue(Id, out hotKey))
{
UnregisterHotKey(IntPtr.Zero, Id);
}
}
// ******************************************************************
private static void ComponentDispatcherThreadFilterMessage(ref MSG msg, ref bool handled)
{
if (!handled)
{
if (msg.message == WmHotKey)
{
HotKey hotKey;
if (_dictHotKeyToCalBackProc.TryGetValue((int)msg.wParam, out hotKey))
{
if (hotKey.Action != null)
{
hotKey.Action.Invoke(hotKey);
}
handled = true;
}
}
}
}
// ******************************************************************
// Implement IDisposable.
// Do not make this method virtual.
// A derived class should not be able to override this method.
public void Dispose()
{
Dispose(true);
// This object will be cleaned up by the Dispose method.
// Therefore, you should call GC.SupressFinalize to
// take this object off the finalization queue
// and prevent finalization code for this object
// from executing a second time.
GC.SuppressFinalize(this);
}
// ******************************************************************
// Dispose(bool disposing) executes in two distinct scenarios.
// If disposing equals true, the method has been called directly
// or indirectly by a user's code. Managed and unmanaged resources
// can be _disposed.
// If disposing equals false, the method has been called by the
// runtime from inside the finalizer and you should not reference
// other objects. Only unmanaged resources can be _disposed.
protected virtual void Dispose(bool disposing)
{
// Check to see if Dispose has already been called.
if (!this._disposed)
{
// If disposing equals true, dispose all managed
// and unmanaged resources.
if (disposing)
{
// Dispose managed resources.
Unregister();
}
// Note disposing has been done.
_disposed = true;
}
}
}
// ******************************************************************
[Flags]
public enum KeyModifier
{
None = 0x0000,
Alt = 0x0001,
Ctrl = 0x0002,
NoRepeat = 0x4000,
Shift = 0x0004,
Win = 0x0008
}
// ******************************************************************
}
使用系统；
使用System.Collections.Generic；
使用系统诊断；
使用System.Linq；
使用System.Net.Mime；
使用System.Runtime.InteropServices；
使用系统文本；
使用System.Windows；
使用System.Windows.Input；
使用System.Windows.Interop；
命名空间非托管
{
公共类热键：IDisposable
{
专用静态字典_dictHotKeyToCalBackProc；
[DllImport（“user32.dll”）]
专用静态外部bool寄存器hotkey（IntPtr hWnd、int id、UInt32 fsModifiers、UInt32 vlc）；
[DllImport（“user32.dll”）]
私有静态外部bool unregister热键（IntPtr hWnd，intid）；
public const int WmHotKey=0x0312；
private bool_disposed=false；
公钥{get；private set；}
public KeyModifier KeyModifier{get；private set；}
公共操作操作{get；private set；}
公共int Id{get；set；}
// ******************************************************************
公用热键（键k、键修改器、键修改器、动作动作、布尔寄存器=true）
{
Key=k；
KeyModifiers=KeyModifiers；
行动=行动；
如果（注册）
{
寄存器（）；
}
}
// ******************************************************************
公共布尔寄存器（）
{
int virtualKeyCode=KeyInterop.VirtualKeyFromKey（键）；
Id=virtualKeyCode+（（int）键修饰符*0x10000）；
bool result=RegisterHotKey（IntPtr.Zero，Id，（UInt32）键修饰符，（UInt32）虚拟代码）；
如果（_dictHotKeyToCalBackProc==null）
{
_dictHotKeyToCalBackProc=新字典（）；
ComponentDispatcher.ThreadFilterMessage+=新的ThreadMessageEventHandler（ComponentDispatcherThreadFilterMessage）；
}
_dictHotKeyToCalBackProc.Add（Id，this）；
Debug.Print（result.ToString（）+”、“+Id+”、“+virtualKeyCode”）；
返回结果；
}
// ******************************************************************
公共作废注销（）
{
热键热键；
if（_dictHotKeyToCalBackProc.TryGetValue（Id，out热键））
{
取消注册热键（IntPtr.Zero，Id）；
}
}
// ******************************************************************
私有静态无效组件DispatcherThreadFilterMessage（ref MSG MSG，ref bool handled）
{
如果（！已处理）
{
如果（msg.message==WmHotKey）
{
热键热键；
如果（_dictHotKeyToCalBackProc.TryGetValue((
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Net.Mime;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows;
using System.Windows.Input;
using System.Windows.Interop;
namespace UnManaged
{
public class HotKey : IDisposable
{
private static Dictionary<int, HotKey> _dictHotKeyToCalBackProc;
[DllImport("user32.dll")]
private static extern bool RegisterHotKey(IntPtr hWnd, int id, UInt32 fsModifiers, UInt32 vlc);
[DllImport("user32.dll")]
private static extern bool UnregisterHotKey(IntPtr hWnd, int id);
public const int WmHotKey = 0x0312;
private bool _disposed = false;
public Key Key { get; private set; }
public KeyModifier KeyModifiers { get; private set; }
public Action<HotKey> Action { get; private set; }
public int Id { get; set; }
// ******************************************************************
public HotKey(Key k, KeyModifier keyModifiers, Action<HotKey> action, bool register = true)
{
Key = k;
KeyModifiers = keyModifiers;
Action = action;
if (register)
{
Register();
}
}
// ******************************************************************
public bool Register()
{
int virtualKeyCode = KeyInterop.VirtualKeyFromKey(Key);
Id = virtualKeyCode + ((int)KeyModifiers * 0x10000);
bool result = RegisterHotKey(IntPtr.Zero, Id, (UInt32)KeyModifiers, (UInt32)virtualKeyCode);
if (_dictHotKeyToCalBackProc == null)
{
_dictHotKeyToCalBackProc = new Dictionary<int, HotKey>();
ComponentDispatcher.ThreadFilterMessage += new ThreadMessageEventHandler(ComponentDispatcherThreadFilterMessage);
}
_dictHotKeyToCalBackProc.Add(Id, this);
Debug.Print(result.ToString() + ", " + Id + ", " + virtualKeyCode);
return result;
}
// ******************************************************************
public void Unregister()
{
HotKey hotKey;
if (_dictHotKeyToCalBackProc.TryGetValue(Id, out hotKey))
{
UnregisterHotKey(IntPtr.Zero, Id);
}
}
// ******************************************************************
private static void ComponentDispatcherThreadFilterMessage(ref MSG msg, ref bool handled)
{
if (!handled)
{
if (msg.message == WmHotKey)
{
HotKey hotKey;
if (_dictHotKeyToCalBackProc.TryGetValue((int)msg.wParam, out hotKey))
{
if (hotKey.Action != null)
{
hotKey.Action.Invoke(hotKey);
}
handled = true;
}
}
}
}
// ******************************************************************
// Implement IDisposable.
// Do not make this method virtual.
// A derived class should not be able to override this method.
public void Dispose()
{
Dispose(true);
// This object will be cleaned up by the Dispose method.
// Therefore, you should call GC.SupressFinalize to
// take this object off the finalization queue
// and prevent finalization code for this object
// from executing a second time.
GC.SuppressFinalize(this);
}
// ******************************************************************
// Dispose(bool disposing) executes in two distinct scenarios.
// If disposing equals true, the method has been called directly
// or indirectly by a user's code. Managed and unmanaged resources
// can be _disposed.
// If disposing equals false, the method has been called by the
// runtime from inside the finalizer and you should not reference
// other objects. Only unmanaged resources can be _disposed.
protected virtual void Dispose(bool disposing)
{
// Check to see if Dispose has already been called.
if (!this._disposed)
{
// If disposing equals true, dispose all managed
// and unmanaged resources.
if (disposing)
{
// Dispose managed resources.
Unregister();
}
// Note disposing has been done.
_disposed = true;
}
}
}
// ******************************************************************
[Flags]
public enum KeyModifier
{
None = 0x0000,
Alt = 0x0001,
Ctrl = 0x0002,
NoRepeat = 0x4000,
Shift = 0x0004,
Win = 0x0008
}
// ******************************************************************
}
protected override void OnStartup(StartupEventArgs e)
{
EventManager.RegisterClassHandler(typeof(Window), Window.PreviewKeyUpEvent, new KeyEventHandler(OnWindowKeyUp));
}
private void OnWindowKeyUp(object source, KeyEventArgs e))
{
//Do whatever you like with e.Key and Keyboard.Modifiers
}
using System;
using System.Windows.Forms;
namespace GlobalHotkeyExampleForm
{
public partial class ExampleForm : Form
{
[System.Runtime.InteropServices.DllImport("user32.dll")]
private static extern bool RegisterHotKey(IntPtr hWnd, int id, int fsModifiers, int vk);
[System.Runtime.InteropServices.DllImport("user32.dll")]
private static extern bool UnregisterHotKey(IntPtr hWnd, int id);
enum KeyModifier
{
None = 0,
Alt = 1,
Control = 2,
Shift = 4,
WinKey = 8
}
public ExampleForm()
{
InitializeComponent();
int id = 0; // The id of the hotkey.
RegisterHotKey(this.Handle, id, (int)KeyModifier.Shift, Keys.A.GetHashCode()); // Register Shift + A as global hotkey.
}
protected override void WndProc(ref Message m)
{
base.WndProc(ref m);
if (m.Msg == 0x0312)
{
/* Note that the three lines below are not needed if you only want to register one hotkey.
* The below lines are useful in case you want to register multiple keys, which you can use a switch with the id as argument, or if you want to know which key/modifier was pressed for some particular reason. */
Keys key = (Keys)(((int)m.LParam >> 16) & 0xFFFF); // The key of the hotkey that was pressed.
KeyModifier modifier = (KeyModifier)((int)m.LParam & 0xFFFF); // The modifier of the hotkey that was pressed.
int id = m.WParam.ToInt32(); // The id of the hotkey that was pressed.
MessageBox.Show("Hotkey has been pressed!");
// do something
}
}
private void ExampleForm_FormClosing(object sender, FormClosingEventArgs e)
{
UnregisterHotKey(this.Handle, 0); // Unregister hotkey with id 0 before closing the form. You might want to call this more than once with different id values if you are planning to register more than one hotkey.
}
}
}
<KeyBinding Gesture="Ctrl+Alt+Add" Command="{Binding IncrementCommand}" />
<KeyBinding Gesture="Ctrl+Alt+Add" Command="{Binding IncrementCommand}"
HotkeyManager.RegisterGlobalHotkey="True" />