enumnetdlg.cpp

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// EnumNetDlg.cpp : implementation file
//

#include "stdafx.h"
#include "EnumNet.h"
#include "EnumNetDlg.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
	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()

/////////////////////////////////////////////////////////////////////////////
// CEnumNetDlg dialog

CEnumNetDlg::CEnumNetDlg(CWnd* pParent /*=NULL*/)
: CDialog(CEnumNetDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CEnumNetDlg)
	// 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 CEnumNetDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CEnumNetDlg)
	DDX_Control(pDX, IDC_LIST1, m_Enum);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CEnumNetDlg, CDialog)
//{{AFX_MSG_MAP(CEnumNetDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_BTNENUM, OnBtnenum)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CEnumNetDlg message handlers

BOOL CEnumNetDlg::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 CEnumNetDlg::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 CEnumNetDlg::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 CEnumNetDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

#pragma comment(lib, "mpr.lib")


BOOL CEnumNetDlg::Enumerate(LPNETRESOURCE Enum)
{
	
	HANDLE hEnum = 0;
	DWORD dwScope = RESOURCE_GLOBALNET ;//枚举范围.
	DWORD dwType = RESOURCETYPE_ANY ; //资源类型.
	DWORD dwResult = WNetOpenEnum(dwScope,dwType,0,Enum,&hEnum); 
	
	if( dwResult != NO_ERROR )
		return FALSE; 
	
	DWORD dwBuffer = 16384 ; // 16K is reasonable size
	DWORD dwEntries = 0xFFFFFFFF ; // enumerate all possible entries
	LPNETRESOURCE EnumLocal = 0; 
	
	BOOL bRet = TRUE; 
	
	do
	{
		EnumLocal = (LPNETRESOURCE) GlobalAlloc( GPTR, dwBuffer ) ; 
		
		dwResult = WNetEnumResource(hEnum,&dwEntries,EnumLocal,&dwBuffer); 
		if( dwResult == NO_ERROR )
		{
			for( register DWORD i = 0 ; i < dwEntries ; i++ ) 
			{
				CString Enumname;
				Enumname = EnumLocal[i].lpRemoteName;
				Enumname += " ";
				Enumname +=EnumLocal[i].lpLocalName;
				Enumname += " ";
				Enumname +=EnumLocal[i].lpComment;
				m_Enum.AddString(Enumname); //CListBox m_Enum;
				if( RESOURCEUSAGE_CONTAINER == 
					(EnumLocal[i].dwUsage & RESOURCEUSAGE_CONTAINER) &&
					EnumLocal[i].dwDisplayType != RESOURCEDISPLAYTYPE_SERVER ) 
					if( !Enumerate( &EnumLocal[i]) )
					{
						//TRACE0( "Enumerate(): Failed\n" );
						return FALSE;
					} 
			}
		} 
		else 
		{
			if( dwResult != ERROR_NO_MORE_ITEMS ) 
			{
				//AfxMessageBox("WNetEnumResource return Error_NO_MORE_ITEMS");
				return FALSE;
			}
		}
	} while( dwResult != ERROR_NO_MORE_ITEMS ); 
	
	if( EnumLocal )
		GlobalFree((HGLOBAL) EnumLocal) ;
	
	WNetCloseEnum(hEnum) ; 
	
	return bRet;
} 


void CEnumNetDlg::OnBtnenum() 
{
	// TODO: Add your control notification handler code here
	Enumerate(0);
}