Two keyboard simulation functions

I need two C++ functions which simulates keyboard input **void TypeIn(wchar_t * Sequence);** **Sequence -** is something which is "typed" - usual text in English with lower and upper case symbols. **void HotKey(DWORD First, DWORD Second=NULL);** **First** and **Second** here are virtual-key codes (VK_MENU and VK_TAB for single Alt+Tab simulation) **Second** is optional in case I want to press just a single key (Enter for example). * Realization have to be done with SendInput API. * Where should be random delays between key downs and key ups and key presses to make the typing look natural. * Code has to be as simple as possible and easy to read. * No third party libraries are allowed, only Windows API and other Visual Studio built-ins. Result should a Visual Studio C++ project with sources compiled to a test command line application which opens a Win+R window and type something where.