// GetRamdomDlg.cpp : implementation file
//

#include "stdafx.h"
#include "GetRamdom.h"
#include "GetRamdomDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
#include "irandom.h"

// {DF7A0E86-CBA9-43b0-8E5C-F7418E46FE44}
static const GUID CLSID_Random={ 0xdf7a0e86, 0xcba9, 0x43b0, { 0x8e, 0x5c, 0xf7, 0x41, 0x8e, 0x46, 0xfe, 0x44 }};

// {DB4E252B-A777-47e3-BAD5-BF10B8F85052}
static const GUID IID_IRandom={ 0xdb4e252b, 0xa777, 0x47e3, { 0xba, 0xd5, 0xbf, 0x10, 0xb8, 0xf8, 0x50, 0x52 }};

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
	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)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGetRamdomDlg dialog

CGetRamdomDlg::CGetRamdomDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CGetRamdomDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CGetRamdomDlg)
		// 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 CGetRamdomDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CGetRamdomDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

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

/////////////////////////////////////////////////////////////////////////////
// CGetRamdomDlg message handlers

BOOL CGetRamdomDlg::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
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CGetRamdomDlg::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 CGetRamdomDlg::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();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CGetRamdomDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CGetRamdomDlg::OnOK() 
{
	// TODO: Add extra validation here
	HRESULT          hResult;
      // Prepare COM for use
   
      hResult = CoInitialize(NULL);
      if (FAILED(hResult)) {
              return ;
	   }
      AfxMessageBox("Initialize Com Library!"); 
		    
	 // Create a new object and return an IUnknown
        // interface pointer
      
	   IUnknown *pIUnknown;
       //Aggregate use com 
	   hResult = CoCreateInstance(CLSID_Random,
                              NULL,
                              CLSCTX_INPROC_SERVER,
                              IID_IUnknown,
                              (void **) &pIUnknown);
      
      if (FAILED(hResult)) {
                
				 return ;
	  }
	  AfxMessageBox("com begin!");
       ////////////// 
	  
	    
		  
		 IRandom   *pIRandom;
         hResult = pIUnknown->QueryInterface(IID_IRandom,
                                          (void**) &pIRandom);
         
		 if (FAILED(hResult)) {
            pIUnknown->Release();
            return ;
		 }
		 int nint;
		 pIRandom->GetRandom(&nint);
		  CString str;
		  str.Format("%d",nint);
		 
         AfxMessageBox(str);
          
		 
		 pIRandom->Release();
         //we have done with the IRandom interface
         
         
        pIUnknown->Release();
        pIUnknown = NULL;
		// We're done with the Random object
        AfxMessageBox("Com has finished!");
	
        // We're all done with COM
        CoUninitialize();
        AfxMessageBox("Uninitialize Com Library!");

	CDialog::OnOK();
}