why getting first chace exception in c++?

bool    TerminationFlag=true;
int main()
{
g_hTerminateEvent = ::CreateEvent(NULL, FALSE, FALSE, NULL);
::SetConsoleCtrlHandler(ConsoleCtrlHandler, TRUE);
while(1)
    {
if(TerminationFlag==false)
        {
            break;
        }
}
return 0;
}

BOOL WINAPI ConsoleCtrlHandler(DWORD dwCtrlType)
{

    if (dwCtrlType == CTRL_C_EVENT ||
        dwCtrlType == CTRL_BREAK_EVENT ||
        dwCtrlType == CTRL_CLOSE_EVENT)
    {
    TerminationFlag=false;
::SetEvent(g_hTerminateEvent);
return TRUE;
    }
return FALSE;
}

i tested the code by running it using start debugging option in visual studio when i press ctrl+c i get the following message

First-chance exception at 0x7c87647d when i press on continue option my code comes to the line TerminationFlag=false;