public void Hook()
{
if (hookId == User32.SafeHookHandle.Null)
{
proc = HookProcedure;
using (var curProcess = Process.GetCurrentProcess()) {
using (ProcessModule curModule = curProcess.MainModule) {
hookId = User32.SetWindowsHookEx(User32.WindowsHookType.WH_KEYBOARD_LL, proc, Kernel32.GetModuleHandle(curModule.ModuleName), 0);
}
}
}
}
private static User32.SafeHookHandle SetKeyboardHook(User32.WindowsHookDelegate proc)
{
using (Process curProcess = Process.GetCurrentProcess())
using (ProcessModule curModule = curProcess.MainModule)
{
var hook = User32.SetWindowsHookEx(
User32.WindowsHookType.WH_KEYBOARD_LL,
proc,
Kernel32.GetModuleHandle(curModule.ModuleName).DangerousGetHandle(),
0);
_hooks.Add(hook);
return(hook);
}
}
/// <inheritdoc />
/// <summary>
/// Starts capturing mouse events
/// </summary>
protected override void Lock()
{
if (this.hookHandle != IntPtr.Zero)
{
throw new InvalidOperationException("The previous hook must be released before capturing the mouse again.");
}
GC.KeepAlive(this.lowLevelMouseProc = LowLevelMouseProc);
if ((this.hookHandle = User32.SetWindowsHookEx(User32.WindowsHookType.WH_MOUSE_LL, this.lowLevelMouseProc)) ==
IntPtr.Zero)
{
Log.Error($"SetWindowHookEx() failed (LE 0x{Marshal.GetLastWin32Error():x8})");
throw new Win32Exception(Marshal.GetLastWin32Error());
}
Log.Debug("low-level mouse hook has been installed");
}
/// <inheritdoc />
/// <summary>
/// Starts capturing keyboard events
/// </summary>
protected override void Lock()
{
if (this.hookHandle != IntPtr.Zero)
{
throw new InvalidOperationException("The previous hook must be released before capturing the keyboard again.");
}
GC.KeepAlive(this.lowLevelKeyboardHook = LowLevelKeyboardProc);
if ((this.hookHandle =
User32.SetWindowsHookEx(User32.WindowsHookType.WH_KEYBOARD_LL, this.lowLevelKeyboardHook)) ==
IntPtr.Zero)
{
Log.Error($"SetWindowHookEx() failed (last error: 0x{Marshal.GetLastWin32Error():x8})");
throw new Win32Exception(Marshal.GetLastWin32Error());
}
Log.Info("desktop keyboard hook locked");
}
/// <inheritdoc />
/// <summary>
/// Starts capturing keyboard events
/// </summary>
protected override void Lock()
{
if (this.hookHandle != IntPtr.Zero)
{
throw new InvalidOperationException("The previous hook must be released before capturing the keyboard again.");
}
GC.KeepAlive(this.lowLevelKeyboardHook = LowLevelKeyboardProc);
if ((this.hookHandle =
User32.SetWindowsHookEx(User32.WindowsHookType.WH_KEYBOARD_LL, this.lowLevelKeyboardHook)) ==
IntPtr.Zero)
{
Log.WriteLine(LogLevel.Error, $"SetWindowHookEx() failed (LE 0x{Marshal.GetLastWin32Error():x8})");
throw new Win32Exception(Marshal.GetLastWin32Error());
}
Log.WriteLine(LogLevel.Debug, "low-level keyboard hook has been installed");
}
// ReSharper restore PrivateFieldCanBeConvertedToLocalVariable
/// <summary>
/// Set up hooks
/// </summary>
static WinHook()
{
AppDomain.CurrentDomain.ProcessExit += CurrentDomainOnProcessExit;
// Set up hooks
EventProcDelegate = WinEventProc;
CbForegroundPtr = Marshal.GetFunctionPointerForDelegate(EventProcDelegate);
ForegroundWindowHook = User32.SetWinEventHook(User32.WindowsEventHookType.EVENT_SYSTEM_FOREGROUND,
User32.WindowsEventHookType.EVENT_SYSTEM_FOREGROUND, IntPtr.Zero, CbForegroundPtr, 0, 0,
User32.WindowsEventHookFlags.WINEVENT_OUTOFCONTEXT);
MouseHookDelegate = MouseHookProc;
CbMouseLlPtr = Marshal.GetFunctionPointerForDelegate(MouseHookDelegate);
MouseHook = User32.SetWindowsHookEx(User32.WindowsHookType.WH_MOUSE_LL, CbMouseLlPtr,
Kernel32.GetModuleHandle(null).DangerousGetHandle(), 0);
// Run standard event loop
//EventLoop.Run();
}
public HookKeys()
{
windowsHook = HookCallback;//make that delegate not release by GC
}
