dll/cpl/powercfg/hibernate.c

   1 /*
   2  * PROJECT:         ReactOS Power Configuration Applet
   3  * LICENSE:         GPL - See COPYING in the top level directory
   4  * FILE:            dll/cpl/powercfg/hibernate.c
   5  * PURPOSE:         hibernate tab of applet
   6  * PROGRAMMERS:     Alexander Wurzinger (Lohnegrim at gmx dot net)
   7  *                  Johannes Anderwald (johannes.anderwald@reactos.org)
   8  *                  Martin Rottensteiner
   9  *                  Dmitry Chapyshev (lentind@yandex.ru)
  10  */
  11
  12 #include "powercfg.h"
  13
  14 static VOID
  15 Hib_InitDialog(HWND hwndDlg)
  16 {
  17     SYSTEM_POWER_CAPABILITIES PowerCaps;
  18     MEMORYSTATUSEX msex;
  19     TCHAR szTemp[MAX_PATH];
  20     LPTSTR lpRoot;
  21     ULARGE_INTEGER FreeBytesAvailable, TotalNumberOfBytes, TotalNumberOfFreeBytes;
  22
  23     if (GetPwrCapabilities(&PowerCaps))
  24     {
  25         CheckDlgButton(hwndDlg,
  26                    IDC_HIBERNATEFILE,
  27                    PowerCaps.HiberFilePresent ? BST_CHECKED : BST_UNCHECKED);
  28
  29         msex.dwLength = sizeof(msex);
  30         if (!GlobalMemoryStatusEx(&msex))
  31         {
  32             return; // FIXME
  33         }
  34
  35         if (GetWindowsDirectory(szTemp,MAX_PATH))
  36             lpRoot = szTemp;
  37         else
  38             lpRoot = NULL;
  39
  40         // Get available space and size of selected volume.
  41         if (!GetDiskFreeSpaceEx(lpRoot, &FreeBytesAvailable, &TotalNumberOfBytes, &TotalNumberOfFreeBytes))
  42             TotalNumberOfFreeBytes.QuadPart = 0;
  43
  44         // Print the free available space into selected volume.
  45         StrFormatByteSize(TotalNumberOfFreeBytes.QuadPart, szTemp, _countof(szTemp));
  46         SetDlgItemText(hwndDlg, IDC_FREESPACE, szTemp);
  47
  48         // Print the amount of space required for hibernation.
  49         StrFormatByteSize(msex.ullTotalPhys, szTemp, _countof(szTemp));
  50         SetDlgItemText(hwndDlg, IDC_SPACEFORHIBERNATEFILE, szTemp);
  51
  52         if (TotalNumberOfFreeBytes.QuadPart < msex.ullTotalPhys && !PowerCaps.HiberFilePresent)
  53         {
  54             EnableWindow(GetDlgItem(hwndDlg, IDC_HIBERNATEFILE), FALSE);
  55             ShowWindow(GetDlgItem(hwndDlg, IDC_TOLESSFREESPACE), TRUE);
  56         }
  57         else
  58         {
  59             ShowWindow(GetDlgItem(hwndDlg, IDC_TOLESSFREESPACE), FALSE);
  60             EnableWindow(GetDlgItem(hwndDlg, IDC_HIBERNATEFILE), TRUE);
  61         }
  62     }
  63 }
  64
  65 INT_PTR
  66 Hib_SaveData(HWND hwndDlg)
  67 {
  68     BOOLEAN bHibernate;
  69
  70     bHibernate = (BOOLEAN)(IsDlgButtonChecked(hwndDlg, IDC_HIBERNATEFILE) == BST_CHECKED);
  71
  72     if (CallNtPowerInformation(SystemReserveHiberFile, &bHibernate, sizeof(bHibernate), NULL, 0) == STATUS_SUCCESS)
  73     {
  74         Hib_InitDialog(hwndDlg);
  75         return TRUE;
  76     }
  77
  78     return FALSE;
  79 }
  80
  81 /* Property page dialog callback */
  82 INT_PTR CALLBACK
  83 HibernateDlgProc(HWND hwndDlg,
  84                  UINT uMsg,
  85                  WPARAM wParam,
  86                  LPARAM lParam)
  87 {
  88     switch (uMsg)
  89     {
  90         case WM_INITDIALOG:
  91             Hib_InitDialog(hwndDlg);
  92             return TRUE;
  93
  94         case WM_COMMAND:
  95             switch (LOWORD(wParam))
  96             {
  97                 case IDC_HIBERNATEFILE:
  98                     if (HIWORD(wParam) == BN_CLICKED)
  99                     {
 100                         PropSheet_Changed(GetParent(hwndDlg), hwndDlg);
 101                     }
 102                     break;
 103             }
 104             break;
 105
 106         case WM_NOTIFY:
 107             if (((LPNMHDR)lParam)->code == (UINT)PSN_APPLY)
 108             {
 109                 return Hib_SaveData(hwndDlg);
 110             }
 111             break;
 112     }
 113
 114     return FALSE;
 115 }