WaitForSingleObject not working???

ow can I know if there is input or not from keyboard in console
application? I want to flush buffer to screen every second.

In Unix, select( ) with stdin and timeout can work well( return timeout
every second ), but in Windows, stdin is NOTSOCK, hence select won't
work.

In Windows, WaitForSingleObject( stdinHandle, 1000 ) will return
"WAIT_OBJECT_0" when waiting for input.

How come the following always goes into "WAIT_OBJECT_0"?

What could I do? Is there any way to use select( ) in Windows with
stdin?

Thanks!

#include <windows.h>
#include <stdio.h>

int main()
{
  static HANDLE stdinHandle;
  // Get the IO handles
  stdinHandle = GetStdHandle(STD_INPUT_HANDLE);
  DWORD rc = WaitForSingleObject(stdinHandle, 1000);

  if( rc == WAIT_TIMEOUT )
  {
    printf("Timeout...");
  }
  else if( rc == WAIT_ABANDONED )
  {
    printf("WAIT_ABANDONED");
  }
  else if( rc == WAIT_OBJECT_0 ) // Always go into this branch, why???
  {
    printf("WAIT_OBJECT_0");
  }
  else if( rc == WAIT_FAILED )
  {
    printf("Error:%d.", GetLastError());
  }

  return 0;
}