6 * Copyright (C) 1999 - 2001 Brian Palmer <brianp@reactos.org>
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #define WIN32_LEAN_AND_MEAN /* Exclude rarely-used stuff from Windows headers */
36 static void DoSetPriority(DWORD priority)
42 TCHAR strErrorText[260];
44 for (Index=0; Index<(ULONG)ListView_GetItemCount(hProcessPageListCtrl); Index++)
46 memset(&lvitem, 0, sizeof(LVITEM));
48 lvitem.mask = LVIF_STATE;
49 lvitem.stateMask = LVIS_SELECTED;
52 SendMessage(hProcessPageListCtrl, LVM_GETITEM, 0, (LPARAM)&lvitem);
54 if (lvitem.state & LVIS_SELECTED)
58 dwProcessId = PerfDataGetProcessId(Index);
60 if ((ListView_GetSelectedCount(hProcessPageListCtrl) != 1) || (dwProcessId == 0))
63 if (MessageBox(hMainWnd, _T("WARNING: Changing the priority class of this process may\ncause undesired results including system instability. Are you\nsure you want to change the priority class?"), _T("Task Manager Warning"), MB_YESNO|MB_ICONWARNING) != IDYES)
66 hProcess = OpenProcess(PROCESS_SET_INFORMATION, FALSE, dwProcessId);
70 GetLastErrorText(strErrorText, 260);
71 MessageBox(hMainWnd, strErrorText, _T("Unable to Change Priority"), MB_OK|MB_ICONSTOP);
75 if (!SetPriorityClass(hProcess, priority))
77 GetLastErrorText(strErrorText, 260);
78 MessageBox(hMainWnd, strErrorText, _T("Unable to Change Priority"), MB_OK|MB_ICONSTOP);
81 CloseHandle(hProcess);
84 void ProcessPage_OnSetPriorityRealTime(void)
86 DoSetPriority(REALTIME_PRIORITY_CLASS);
89 void ProcessPage_OnSetPriorityHigh(void)
91 DoSetPriority(HIGH_PRIORITY_CLASS);
94 void ProcessPage_OnSetPriorityAboveNormal(void)
96 DoSetPriority(ABOVE_NORMAL_PRIORITY_CLASS);
99 void ProcessPage_OnSetPriorityNormal(void)
101 DoSetPriority(NORMAL_PRIORITY_CLASS);
104 void ProcessPage_OnSetPriorityBelowNormal(void)
106 DoSetPriority(BELOW_NORMAL_PRIORITY_CLASS);
109 void ProcessPage_OnSetPriorityLow(void)
111 DoSetPriority(IDLE_PRIORITY_CLASS);