private void HookAction(Action <CWPRETSTRUCT> action)
{
this.hookAction = action;
this.hookProc = new UnsafeNativeMethods.HookProc(MessageHook);
this.hook = UnsafeNativeMethods.SetWindowsHookEx(
HookType.WH_CALLWNDPROCRET,
this.hookProc,
IntPtr.Zero,
UnsafeNativeMethods.GetCurrentThreadId());
}
private static IntPtr SetHook(UnsafeNativeMethods.HookProc proc)
{
using (var curProcess = Process.GetCurrentProcess())
using (var curModule = curProcess.MainModule)
{
if (curModule != null)
{
return(UnsafeNativeMethods.SetWindowsHookEx((int)UnsafeNativeMethods.HookType.WH_KEYBOARD_LL, proc,
UnsafeNativeMethods.GetModuleHandle(curModule.ModuleName), 0));
}
return(IntPtr.Zero);
}
}
public void StartMonitoring(bool installMouseHook, bool installKeyboardHook)
{
if (mouseHook_ == IntPtr.Zero && installMouseHook)
{
mouseHookProcedure_ = new UnsafeNativeMethods.HookProc(MouseHookProc_);
mouseHook_ = UnsafeNativeMethods.SetWindowsHookEx(
SafeNativeMethods.WH_MOUSE_LL,
mouseHookProcedure_,
Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]),
0);
if (mouseHook_ == IntPtr.Zero)
{
int errorCode = Marshal.GetLastWin32Error();
StopMonitoring(true, false, false);
throw new Win32Exception(errorCode);
}
}
if (keyboardHook_ == IntPtr.Zero && installKeyboardHook)
{
keyboardHookProcedure_ = new UnsafeNativeMethods.HookProc(KeyboardHookProc_);
keyboardHook_ = UnsafeNativeMethods.SetWindowsHookEx(
SafeNativeMethods.WH_KEYBOARD_LL,
keyboardHookProcedure_,
Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]),
0);
if (keyboardHook_ == IntPtr.Zero)
{
int errorCode = Marshal.GetLastWin32Error();
StopMonitoring(false, true, false);
throw new Win32Exception(errorCode);
}
}
}
