xref: /reactos/dll/cpl/powercfg/hibernate.c (revision 50cf16b3) 
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 BOOLEAN Pos_InitData();
15 void Adv_InitDialog();
16 
17 
18 static VOID
19 Hib_InitDialog(HWND hwndDlg)
20 {
21     SYSTEM_POWER_CAPABILITIES PowerCaps;
22     MEMORYSTATUSEX msex;
23     TCHAR szTemp[MAX_PATH];
24     LPTSTR lpRoot;
25     ULARGE_INTEGER FreeBytesAvailable, TotalNumberOfBytes, TotalNumberOfFreeBytes;
26 
27     if (GetPwrCapabilities(&PowerCaps))
28     {
29         CheckDlgButton(hwndDlg,
30                    IDC_HIBERNATEFILE,
31                    PowerCaps.HiberFilePresent ? BST_CHECKED : BST_UNCHECKED);
32 
33         msex.dwLength = sizeof(msex);
34         if (!GlobalMemoryStatusEx(&msex))
35         {
36             return; // FIXME
37         }
38 
39         if (GetWindowsDirectory(szTemp,MAX_PATH))
40             lpRoot = szTemp;
41         else
42             lpRoot = NULL;
43 
44         // Get available space and size of selected volume.
45         if (!GetDiskFreeSpaceEx(lpRoot, &FreeBytesAvailable, &TotalNumberOfBytes, &TotalNumberOfFreeBytes))
46             TotalNumberOfFreeBytes.QuadPart = 0;
47 
48         // Print the free available space into selected volume.
49         StrFormatByteSize(TotalNumberOfFreeBytes.QuadPart, szTemp, _countof(szTemp));
50         SetDlgItemText(hwndDlg, IDC_FREESPACE, szTemp);
51 
52         // Print the amount of space required for hibernation.
53         StrFormatByteSize(msex.ullTotalPhys, szTemp, _countof(szTemp));
54         SetDlgItemText(hwndDlg, IDC_SPACEFORHIBERNATEFILE, szTemp);
55 
56         if (TotalNumberOfFreeBytes.QuadPart < msex.ullTotalPhys && !PowerCaps.HiberFilePresent)
57         {
58             EnableWindow(GetDlgItem(hwndDlg, IDC_HIBERNATEFILE), FALSE);
59             ShowWindow(GetDlgItem(hwndDlg, IDC_TOLESSFREESPACE), TRUE);
60         }
61         else
62         {
63             ShowWindow(GetDlgItem(hwndDlg, IDC_TOLESSFREESPACE), FALSE);
64             EnableWindow(GetDlgItem(hwndDlg, IDC_HIBERNATEFILE), TRUE);
65         }
66     }
67 }
68 
69 INT_PTR
70 Hib_SaveData(HWND hwndDlg)
71 {
72     BOOLEAN bHibernate;
73 
74     bHibernate = (BOOLEAN)(IsDlgButtonChecked(hwndDlg, IDC_HIBERNATEFILE) == BST_CHECKED);
75 
76     if (CallNtPowerInformation(SystemReserveHiberFile, &bHibernate, sizeof(bHibernate), NULL, 0) == STATUS_SUCCESS)
77     {
78         Pos_InitData();
79         Adv_InitDialog();
80         Hib_InitDialog(hwndDlg);
81         return TRUE;
82     }
83 
84     return FALSE;
85 }
86 
87 /* Property page dialog callback */
88 INT_PTR CALLBACK
89 HibernateDlgProc(HWND hwndDlg,
90                  UINT uMsg,
91                  WPARAM wParam,
92                  LPARAM lParam)
93 {
94     switch (uMsg)
95     {
96         case WM_INITDIALOG:
97             Hib_InitDialog(hwndDlg);
98             return TRUE;
99 
100         case WM_COMMAND:
101             switch (LOWORD(wParam))
102             {
103                 case IDC_HIBERNATEFILE:
104                     if (HIWORD(wParam) == BN_CLICKED)
105                     {
106                         PropSheet_Changed(GetParent(hwndDlg), hwndDlg);
107                     }
108                     break;
109             }
110             break;
111 
112         case WM_NOTIFY:
113         {
114             LPNMHDR lpnm = (LPNMHDR)lParam;
115             if (lpnm->code == (UINT)PSN_APPLY)
116             {
117                 return Hib_SaveData(hwndDlg);
118             }
119         }
120     }
121 
122     return FALSE;
123 }
124