IntPtr windowHandle = Win32.FindWindow("adbpaste.bat - Notepad", null);
IntPtr editHandle = Win32.FindWindowEx(windowHandle, IntPtr.Zero, "Edit", null);
string textToSendToFile = "text bất kỳ";
Clipboard.SetText(textToSendToFile);
Win32.SendMessage((IntPtr)editHandle, Win32.WM_PASTE, IntPtr.Zero, IntPtr.Zero);