title: Win32 API - Create Button help
body: <p>I try to create 2 buttons inside my app </p>
  
  <pre><code>case WM_CREATE:{
      hWnd =CreateWindowEx(NULL,
              L"BUTTON",
              L"Giai PTB2",
              WS_TABSTOP|WS_VISIBLE|
              WS_CHILD|BS_DEFPUSHBUTTON,
              100,
              100,
              100,
              24,
              hWnd,
              (HMENU)IDC_PTB2_BUTTON,
              hInst,
              NULL);
      HWND hWndNew =CreateWindowEx(NULL,
              L"BUTTON",
              L"Tim max",
              WS_TABSTOP|WS_VISIBLE|
              WS_CHILD|BS_DEFPUSHBUTTON,
              200,
              200,
              100,
              100,
              hWnd,
              (HMENU)IDC_PTB2_BUTTON2,
              hInst,
              NULL);
      break;
                 }
  </code></pre>
  
  <p>The problem is , only "Giai PTB2" button shows :)
  Thanks first :)</p>