c++ - SetSuspendState() API never returns in Win8 -

let me explain problem statement:

in vc++ project want insert logic send system (windows 8) sleep state programatically & resume back.

i'm doing (copying code snippet) ::

int wait = 100; large_integer waittime;     waittime.quadpart = wait;     waittime.quadpart *= -10000000;  handle htimer = createwaitabletimer(null, false, null);         if(0 == setwaitabletimer(htimer, &waittime, 0, null, null, true))         {             res = false;             return res;         }         if(0 == setsuspendstate(false, false, false))         {             res = false;             return res;         } 

the system going sleep (monitor getting turned off).
here, want resume sleep state after setsuspendstate() api call. but see setsuspendstate() call not @ returning. control struck @ setsuspendstate() call & doesn't return back.

however, if forcefully bring system power , see come function "setsuspendstate()" doesn't return in code.

can please me figure out why setsuspendstate() not returning & how fix problem. in advance.

ps: i'm using vs remote debugger mechanism achieve sleep state.

i imagine call setsuspendstate results in remote debug server being shutdown. when call setsuspendstate system starts shutdown, , involves notifying applications system going down. when happens, applications expected terminate. can expect lose connection remote debugger.