c++ - Can't connect to a port, but netstat shows what port LISTENING -

while trying connect error:

"no connection made because target machine actively refused it."

but netstat shows:

tcp    0.0.0.0:my_port           my_pc:0        listening 

only problem can think app bound port under step-by-step debugging, paused. how can workaround it.

basicly need know somehow if bound port. (i can't use so_exclusiveaddruse)

---

i think can't connect because app uses port in debug paused mode, so, first time connect doesn't "clear connection".

if want check if given port in use, can bind() , check failure. if don't want create socket , bind it, can instead loop through arrays returned gettcptable(), gettcptable2(), gettcp6table(), gettcp6table2(), getudptable(), , getudp6table() functions. table2() not report ips , ports in use, process ids own them (from can access additional information, file names). these same functions netstat uses internally information.