--- q_a/samples/semaphor/sema.c	2018/08/09 18:29:19	1.1
+++ q_a/samples/semaphor/sema.c	2018/08/09 18:29:42	1.1.1.2
@@ -120,7 +120,7 @@ int APIENTRY WinMain (HANDLE hInstance,
 
 
   ShowWindow(hWnd, nCmdShow);
-  while (GetMessage (&msg, NULL, NULL, NULL))
+  while (GetMessage (&msg, NULL, 0, 0))
     DispatchMessage (&msg);   // Dispatch message to window.
 
   return (msg.wParam);           // Returns value from PostQuitMessage.
@@ -265,28 +265,28 @@ LONG APIENTRY MainWndProc (HWND hwnd,
           *pColor1 = GREEN;                  // Create the Green thread.
           hThread1 = CreateThread (NULL, 0,
                                    (LPTHREAD_START_ROUTINE)ThreadProc,
-                                   (LPVOID)pColor1, NULL,
+				   (LPVOID)pColor1, 0,
                                    (LPDWORD)&ThreadID1);
 
           pColor2  = malloc(sizeof(DWORD));
           *pColor2 = RED;                    // Create the Red thread.
           hThread2 = CreateThread (NULL, 0,
                                    (LPTHREAD_START_ROUTINE)ThreadProc,
-                                   (LPVOID)pColor2, NULL,
+				   (LPVOID)pColor2, 0,
                                    (LPDWORD)&ThreadID2);
 
           pColor3  = malloc(sizeof(DWORD));
           *pColor3 = BLUE;                   // Create the Blue thread.
           hThread3 = CreateThread (NULL, 0,
                                    (LPTHREAD_START_ROUTINE)ThreadProc,
-                                   (LPVOID)pColor3, NULL,
+				   (LPVOID)pColor3, 0,
                                    (LPDWORD)&ThreadID3);
 
           pColor4  = malloc(sizeof(DWORD));
           *pColor4 = GRAY;                   // Create the Gray thread.
           hThread4 = CreateThread (NULL, 0,
                                    (LPTHREAD_START_ROUTINE)ThreadProc,
-                                   (LPVOID)pColor4, NULL,
+				   (LPVOID)pColor4, 0,
                                    (LPDWORD)&ThreadID4);
 
           ReleaseSemaphore (hSemaphore, 1, NULL);
@@ -364,7 +364,6 @@ VOID ThreadProc ( LPVOID *Color)
      hDC = GetDC(hWnd);
      SelectObject( hDC, hBrush);
      Rectangle (hDC, Col, Row, Col + width, Row + height);
-     DeleteObject (hBrush);
      ReleaseDC(hWnd, hDC);
      Sleep (500);
      ReleaseSemaphore (hSemaphore, 1, NULL);