C / C++ / MFC

UINT WINAPI SendInput(
  UINT nInputs,     // count of input events
  LPINPUT pInputs,  // array of input events
  int cbSize        // size of structure
);

While a thread has ownership of a mutex, it can specify the same mutex in additional wait-function calls without blocking its execution. This prevents a thread from deadlocking itself while waiting for a mutex that it already owns. However, to release its ownership, the thread must call ReleaseMutex once for each time that the mutex satisfied a wait.

template <class T> T is_clamp (T v, const T &L, const T &H) 
{
   if (v < L) 
   {
     v = L;
   } 
   else if (v > H) 
   {
     v = H;
   } return v;
}