public static IntPtr GetFocusedHandle(uint threadId, WindowSelectorEventArgs e = null) //Получение хендла активного контрола
{
//@kurumpa http://stackoverflow.com/a/28409126
IntPtr hWnd = IntPtr.Zero;
IntPtr focusedHandle = IntPtr.Zero;
var info = new WinApi.GUITHREADINFO();
info.cbSize = Marshal.SizeOf(info);
var success = WinApi.GetGUIThreadInfo(threadId, ref info);
// target = hwndCaret || hwndFocus || (AttachThreadInput + GetFocus) || hwndActive
var currentThreadId = WinApi.GetCurrentThreadId();
if (currentThreadId != threadId)
{
WinApi.AttachThreadInput(threadId, currentThreadId, true);
}
focusedHandle = WinApi.GetFocus();
if (e != null)
{
e.HGetActiveWindow = (int)WinApi.GetActiveWindow();
}
if (currentThreadId != threadId)
{
WinApi.AttachThreadInput(threadId, currentThreadId, false);
}
if (e != null)
{
e.HGetFocus = (int)focusedHandle;
if (success)
{
e.HCaret = (int)info.hwndCaret;
e.HFocus = (int)info.hwndFocus;
e.HActive = (int)info.hwndActive;
e.HCapture = (int)info.hwndCapture;
}
}
if (success)
{
if (info.hwndCaret != IntPtr.Zero)
{
hWnd = info.hwndCaret;
}
else if (info.hwndFocus != IntPtr.Zero)
{
hWnd = info.hwndFocus;
}
else if (focusedHandle != IntPtr.Zero)
{
hWnd = focusedHandle;
}
else if (info.hwndActive != IntPtr.Zero)
{
hWnd = info.hwndActive;
}
}
else
{
hWnd = focusedHandle;
}
return(hWnd);
}