/// <summary>
/// Gets the input locale identifier for the active application's thread. Using this combined with the ToUnicodeEx and
/// MapVirtualKeyEx enables Windows to properly translate keys based on the keyboard layout designated for the
/// application.
/// </summary>
/// <returns>HKL</returns>
private static IntPtr GetActiveKeyboard()
{
IntPtr hActiveWnd = ThreadNativeMethods.GetForegroundWindow(); //handle to focused window
int dwProcessId;
int hCurrentWnd = ThreadNativeMethods.GetWindowThreadProcessId(hActiveWnd, out dwProcessId);
//thread of focused window
return(GetKeyboardLayout(hCurrentWnd)); //get the layout identifier for the thread whose window is focused
}
private static HookResult HookApp(int hookId, Callback callback)
{
HookProcedure hookProcedure = (code, param, lParam) => HookProcedure(code, param, lParam, callback);
var hookHandle = HookNativeMethods.SetWindowsHookEx(
hookId,
hookProcedure,
IntPtr.Zero,
ThreadNativeMethods.GetCurrentThreadId());
if (hookHandle.IsInvalid)
{
ThrowLastUnmanagedErrorAsException();
}
return(new HookResult(hookHandle, hookProcedure));
}