WaitForSingleObject_example.cpp

//#include "stdafx.h"
//#include

//#include

int _tmain(int argc, _TCHAR* argv[])
{

DWORD ThreadID, dwRet;

HANDLE hTh;
// Creates a thread to execute within the virtual address space of the calling process
hTh=CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)ThreadMain,(LPVOID)10,0,&ThreadID);
if(hTh==NULL)
{
wprintf(L"CreateThread() failed, error %u\n", GetLastError());
return 1;
}
else
wprintf(L"CreateThread() is OK, thread ID %u\n", ThreadID);
// Blocks/wait till thread terminates
// Waits until the specified object is in the signaled state or
// the time-out interval elapses.
// The INFINITE parameter make the function return only when the object is signaled
wprintf(L"Waiting the child thread terminates/signaled...\n");
dwRet = WaitForSingleObject(hTh,INFINITE);
wprintf(L"WaitForSingleObject() returns value is 0X%.8X\n", dwRet);

switch(dwRet)
{
case WAIT_ABANDONED:
wprintf(L"Mutex object was not released by the thread that\n" L"owned the mutex object before the owning thread terminates...\n");
break;
case WAIT_OBJECT_0:
wprintf(L"The child thread state was signaled!\n");
break;
case WAIT_TIMEOUT:
wprintf(L"Time-out interval elapsed, and the child thread's state is nonsignaled.\n");
break;
case WAIT_FAILED:
wprintf(L"WaitForSingleObject() failed, error %u\n", GetLastError());
ExitProcess(0);
}

if(CloseHandle(hTh) != 0)
wprintf(L"hTh's child thread handle was closed successfully!\n");
else
wprintf(L"Failed to close hTh child thread handle, error %u\n", GetLastError());

wprintf(L"Main process & thread ready to exit...\n");

return 0;

}