SetWindowRedraw(hwndList, FALSE);无闪烁重画

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   HWND hwndList = GetDlgItem(hwnd, IDC_PROCESSMODULELIST);
   SetWindowRedraw(hwndList, FALSE);
   ComboBox_ResetContent(hwndList);

   CToolhelp thProcesses(TH32CS_SNAPPROCESS);
   PROCESSENTRY32 pe = { sizeof(pe) };
   BOOL fOk = thProcesses.ProcessFirst(&pe);
   for (; fOk; fOk = thProcesses.ProcessNext(&pe)) {
      TCHAR sz[1024];

      // Place the process name (without its path) & ID in the list
      PCTSTR pszExeFile = _tcsrchr(pe.szExeFile, TEXT('//'));
      if (pszExeFile == NULL) pszExeFile = pe.szExeFile;
      else pszExeFile++; // Skip over the slash
      wsprintf(sz, TEXT("%s     (0x%08X)"), pszExeFile, pe.th32ProcessID);
      int n = ComboBox_AddString(hwndList, sz);

      // Associate the process ID with the added item
      ComboBox_SetItemData(hwndList, n, pe.th32ProcessID);
   }
   ComboBox_SetCurSel(hwndList, 0); // Select the first entry

   // Simulate the user selecting this first item so that the
   // results pane shows something interesting
   FORWARD_WM_COMMAND(hwnd, IDC_PROCESSMODULELIST,
      hwndList, CBN_SELCHANGE, SendMessage);

SetWindowRedraw(hwndList, TRUE);
InvalidateRect(hwndList, NULL, FALSE);