reactos/base/applications/taskmgr/priority.c

   1 /*
   2  *  ReactOS Task Manager
   3  *
   4  *  priority.c
   5  *
   6  *  Copyright (C) 1999 - 2001  Brian Palmer  <brianp@reactos.org>
   7  *                2005         Klemens Friedl <frik85@reactos.at>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  22  */
  23
  24 #include "precomp.h"
  25
  26 void DoSetPriority(DWORD priority)
  27 {
  28     DWORD   dwProcessId;
  29     HANDLE  hProcess;
  30     WCHAR   szText[260];
  31     WCHAR   szTitle[256];
  32
  33     dwProcessId = GetSelectedProcessId();
  34
  35     if (dwProcessId == 0)
  36         return;
  37
  38     LoadStringW(hInst, IDS_MSG_TASKMGRWARNING, szTitle, 256);
  39     LoadStringW(hInst, IDS_MSG_WARNINGCHANGEPRIORITY, szText, 260);
  40     if (MessageBoxW(hMainWnd, szText, szTitle, MB_YESNO|MB_ICONWARNING) != IDYES)
  41         return;
  42
  43     hProcess = OpenProcess(PROCESS_SET_INFORMATION, FALSE, dwProcessId);
  44
  45     if (!hProcess)
  46     {
  47         GetLastErrorText(szText, 260);
  48         LoadStringW(hInst, IDS_MSG_UNABLECHANGEPRIORITY, szTitle, 256);
  49         MessageBoxW(hMainWnd, szText, szTitle, MB_OK|MB_ICONSTOP);
  50         return;
  51     }
  52
  53     if (!SetPriorityClass(hProcess, priority))
  54     {
  55         GetLastErrorText(szText, 260);
  56         LoadStringW(hInst, IDS_MSG_UNABLECHANGEPRIORITY, szTitle, 256);
  57         MessageBoxW(hMainWnd, szText, szTitle, MB_OK|MB_ICONSTOP);
  58     }
  59
  60     CloseHandle(hProcess);
  61 }