Closing the active window

[gsingh2011]

I used GetForegroundWindow() to get the handle to the current active window, but I need to know how to exit that window. Does anyone know?

EDIT:
I tried a different approach, using GetProcessId(hWnd).
hWnd = GetForegroundWindow();
PID = GetProcessId(hWnd);
system("taskkill /PID" + PID)

or something of that sort. The problem is PID is always returning 0, and I don't know what's wrong.

[freddie1]

Can't you just use DestroyWindow(hWnd)? In programs I write I usually put memory de-allocation code in a WM_CLOSE handler. So I usually SendMessage() a WM_CLOSE to the hWnd and let the default processing do the DestroyWindow() call.

[Kiana]

Using your method,

BOOL TerminateWindow(__in HWND hWnd)
{
  DWORD   dwProcessId;
  HANDLE  hProcess;
  BOOL    bRet = FALSE;

  GetWindowThreadProcessId(hWnd, &dwProcessId);
  hProcess = OpenProcess(PROCESS_TERMINATE, FALSE, dwProcessId);
  if(hProcess != NULL)
  {
    if(TerminateProcess(hProcess, 0))
      bRet = TRUE;
    CloseHandle(hProcess);
  }

  return bRet;
}