// ShutDownDlg.cpp : implementation file
//

#include "stdafx.h"
#include "ShutDown.h"
#include "ShutDownDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	afx_msg void OnNcPaint();
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
	ON_WM_NCPAINT()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CShutDownDlg dialog

CShutDownDlg::CShutDownDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CShutDownDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CShutDownDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CShutDownDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CShutDownDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CShutDownDlg, CDialog)
	//{{AFX_MSG_MAP(CShutDownDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CShutDownDlg message handlers

BOOL CShutDownDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon

	CheckRadioButton(IDC_RADIO_LOGOFF, IDC_RADIO_SHUTDOWN, IDC_RADIO_SHUTDOWN);
	((CButton*)GetDlgItem(IDC_CHECK_FORCE))->SetCheck(1);
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CShutDownDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CShutDownDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

HCURSOR CShutDownDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

BOOL WINAPI PL_ExitWindow(UINT uFlag)
{
	HANDLE hToken = NULL;
	TOKEN_PRIVILEGES tkp;
	BOOL fResult = FALSE;
	if(OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
	{
		if(LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &tkp.Privileges[0].Luid))
		{
			tkp.PrivilegeCount = 1;
			tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; 
			if(AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES) NULL, 0))
			{
				return ::ExitWindowsEx(uFlag, 0);
			}
		}
	}
	
	return ::ExitWindowsEx(uFlag, 0);
}

void CShutDownDlg::OnOK() 
{
	OSVERSIONINFO ver;
	ZeroMemory(&ver, sizeof(OSVERSIONINFO));
	ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
	GetVersionEx(&ver);
	int nID = GetCheckedRadioButton(IDC_RADIO_LOGOFF, IDC_RADIO_SHUTDOWN);
	BOOL bForce = ((CButton*)GetDlgItem(IDC_CHECK_FORCE))->GetCheck();
	int nSel = nID - IDC_RADIO_LOGOFF;
	UINT uFlag = bForce ? EWX_FORCE : 0;
	switch(nSel)
	{
	case 0:
		uFlag |= EWX_LOGOFF;
		break ;
	case 1:
		uFlag |= EWX_REBOOT;
		break ;
	case 2:
		{
			if(ver.dwMajorVersion <= 4)
			{
				uFlag |= EWX_SHUTDOWN;
			}
			else
			{
				uFlag |= (EWX_SHUTDOWN | EWX_POWEROFF);
			}
		}
		break ;
	}
	CDialog::OnOK();
	PL_ExitWindow(uFlag);
}

void CShutDownDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	
	CDialog::OnCancel();
}

void CAboutDlg::OnNcPaint() 
{
	// TODO: Add your message handler code here
	
	// Do not call CDialog::OnNcPaint() for painting messages
}