hibernate.c

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/* $Id: hibernate.c 54535 2011-11-29 14:55:58Z dgorbachev $
 *
 * PROJECT:         ReactOS Power Configuration Applet
 * LICENSE:         GPL - See COPYING in the top level directory
 * FILE:            dll/cpl/powercfg/hibernate.c
 * PURPOSE:         hibernate tab of applet
 * PROGRAMMERS:     Alexander Wurzinger (Lohnegrim at gmx dot net)
 *                  Johannes Anderwald (johannes.anderwald@student.tugraz.at)
 *                  Martin Rottensteiner
 *                  Dmitry Chapyshev (lentind@yandex.ru)
 */

//#ifndef NSTATUS
//typedef long NTSTATUS;
//#endif

#include "powercfg.h"

BOOLEAN Pos_InitData();
void Adv_InitDialog();


static VOID
Hib_InitDialog(HWND hwndDlg)
{
    SYSTEM_POWER_CAPABILITIES PowerCaps;
    MEMORYSTATUSEX msex;
    TCHAR szSize[MAX_PATH];
    TCHAR szTemp[MAX_PATH];
    ULARGE_INTEGER FreeBytesAvailable, TotalNumberOfBytes, TotalNumberOfFreeBytes;

    if (GetPwrCapabilities(&PowerCaps))
    {
        CheckDlgButton(hwndDlg,
                   IDC_HIBERNATEFILE,
                   PowerCaps.HiberFilePresent ? BST_CHECKED : BST_UNCHECKED);

        msex.dwLength = sizeof(msex);
        if (!GlobalMemoryStatusEx(&msex))
        {
            return; // FIXME
        }

        if (GetWindowsDirectory(szTemp,MAX_PATH))
        {
            if (!GetDiskFreeSpaceEx(szTemp,&FreeBytesAvailable, &TotalNumberOfBytes, &TotalNumberOfFreeBytes))
                TotalNumberOfFreeBytes.QuadPart = 0;
        }
        else
        {
            if (!GetDiskFreeSpaceEx(NULL,&FreeBytesAvailable, &TotalNumberOfBytes, &TotalNumberOfFreeBytes))
                TotalNumberOfFreeBytes.QuadPart = 0;
        }

        if (TotalNumberOfFreeBytes.QuadPart > 0x100000)
        {
            if (LoadString(hApplet, IDS_SIZEMB, szTemp, MAX_PATH))
            {
                _stprintf(szSize,szTemp,TotalNumberOfFreeBytes.QuadPart / 0x100000);
                SetDlgItemText(hwndDlg, IDC_FREESPACE, szSize);
            }
        }
        else
        {
            if (LoadString(hApplet, IDS_SIZEBYTS, szTemp, MAX_PATH))
            {
                _stprintf(szSize,szTemp,TotalNumberOfFreeBytes.QuadPart);
                SetDlgItemText(hwndDlg, IDC_FREESPACE, szSize);
            }
        }

        if (msex.ullTotalPhys>0x100000)
        {
            if (LoadString(hApplet, IDS_SIZEMB, szTemp, MAX_PATH))
            {
                _stprintf(szSize,szTemp,msex.ullTotalPhys/0x100000);
                SetDlgItemText(hwndDlg, IDC_SPACEFORHIBERNATEFILE,szSize);
            }
        }
        else
        {
            if (LoadString(hApplet, IDS_SIZEBYTS, szTemp, MAX_PATH))
            {
                _stprintf(szSize,szTemp,msex.ullTotalPhys);
                SetDlgItemText(hwndDlg, IDC_SPACEFORHIBERNATEFILE, szSize);
            }
        }

        if (TotalNumberOfFreeBytes.QuadPart < msex.ullTotalPhys && !PowerCaps.HiberFilePresent)
        {
            EnableWindow(GetDlgItem(hwndDlg, IDC_HIBERNATEFILE), FALSE);
            ShowWindow(GetDlgItem(hwndDlg, IDC_TOLESSFREESPACE), TRUE);
        }
        else
        {
            ShowWindow(GetDlgItem(hwndDlg, IDC_TOLESSFREESPACE), FALSE);
            EnableWindow(GetDlgItem(hwndDlg, IDC_HIBERNATEFILE), TRUE);
        }
    }
}

INT_PTR
Hib_SaveData(HWND hwndDlg)
{
    BOOLEAN bHibernate;

    bHibernate = (BOOLEAN)(IsDlgButtonChecked(hwndDlg, IDC_HIBERNATEFILE) == BST_CHECKED);

    if (CallNtPowerInformation(SystemReserveHiberFile,&bHibernate, sizeof(bHibernate), NULL, 0) == STATUS_SUCCESS)
    {
        Pos_InitData();
        Adv_InitDialog();
        Hib_InitDialog(hwndDlg);
        return TRUE;
    }

    return FALSE;
}

/* Property page dialog callback */
INT_PTR CALLBACK
HibernateDlgProc(HWND hwndDlg,
                 UINT uMsg,
                 WPARAM wParam,
                 LPARAM lParam)
{
  switch(uMsg)
  {
    case WM_INITDIALOG:
        Hib_InitDialog(hwndDlg);
        return TRUE;
    case WM_COMMAND:
        switch(LOWORD(wParam))
        {
        case IDC_HIBERNATEFILE:
            if (HIWORD(wParam) == BN_CLICKED)
            {
                PropSheet_Changed(GetParent(hwndDlg), hwndDlg);
            }
        }
        break;
    case WM_NOTIFY:
        {
            LPNMHDR lpnm = (LPNMHDR)lParam;
            if (lpnm->code == (UINT)PSN_APPLY)
            {
                return Hib_SaveData(hwndDlg);
            }
        }
  }
  return FALSE;
}