ActiveX/DCOM/ATL

开发平台：
Visual C++

AddressAdminDlg.cpp：源码内容
							// AddressAdminDlg.cpp : implementation file
//
#include "stdafx.h"
#include "AddressAdmin.h"
#include "AddressAdminDlg.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()
/////////////////////////////////////////////////////////////////////////////
// CAddressAdminDlg dialog
CAddressAdminDlg::CAddressAdminDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CAddressAdminDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CAddressAdminDlg)
	m_age = 0;
	iSize=0;
	m_name = _T("");
	m_address = _T("");
	m_sex = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	this->pBuffer=NULL;
	p_CurrentImag=NULL;
}
void CAddressAdminDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAddressAdminDlg)
	DDX_Text(pDX, IDC_AGE, m_age);
	DDX_Text(pDX, IDC_Name, m_name);
	DDX_Text(pDX, IDC_Address, m_address);
	DDX_Text(pDX, IDC_SEX, m_sex);
	//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAddressAdminDlg, CDialog)
	//{{AFX_MSG_MAP(CAddressAdminDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON8, OnButton8)
	ON_BN_CLICKED(IDC_BUTTON5, OnButton5)
	ON_BN_CLICKED(IDC_BUTTON6, OnButton6)
	ON_BN_CLICKED(IDC_BUTTON3, OnButton3)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CAddressAdminDlg message handlers
BOOL CAddressAdminDlg::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
	::CoInitialize(NULL);
	//连接数据库
	conn.CreateInstance(__uuidof(Connection));
	conn->Open(_bstr_t("Provider=OraOLEDB.Oracle.1;User Id=scott;Data Source=tarena"),_bstr_t(""),_bstr_t("tiger"),-1);
	rs.CreateInstance(__uuidof(Recordset));
	rs->Open(_variant_t("select * from ocyAddress_ocy"),conn.GetInterfacePtr(),adOpenDynamic,adLockPessimistic,adCmdText);
	//显示数据用的比较频繁，所以自建一个函数
	this->ShowData();
	return TRUE;  // return TRUE  unless you set the focus to a control
}
void CAddressAdminDlg::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 CAddressAdminDlg::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
	{		
		this->show();
		CDialog::OnPaint();
	}
}
// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CAddressAdminDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}
void CAddressAdminDlg::OnButton8() 
{
	// TODO: Add your control notification handler code here
	CFileDialog dlg(TRUE);
	dlg.DoModal();
	CString strFilePath=dlg.GetPathName();
	if(strFilePath.GetLength()>0) 
	{
		CFile fsource;
		CFileException fex;
		
		fsource.Open(strFilePath,CFile::modeRead,&fex);
		this->iSize=fsource.GetLength();
		
		if(this->pBuffer!=NULL)
		{
			delete this->pBuffer;
			this->pBuffer=NULL;			
		}
		this->pBuffer=new CHAR[iSize];
		fsource.Read(this->pBuffer,iSize);	
	}
	//显示图片；
	this->p_CurrentImag=this->ShowImage();		
	CStatic* pDc=(CStatic*)(this->GetDlgItem(IDC_STATICimg));
	pDc->Invalidate();
}
HBITMAP CAddressAdminDlg::ShowImage()
{
	LPSTR pTempBuffer=this->pBuffer;
	BITMAPFILEHEADER bf;
	int leng=sizeof(bf);
	LPSTR pInfor=pTempBuffer+leng;
	BITMAPINFOHEADER& pInfHeader=*(LPBITMAPINFOHEADER)(pInfor);
	BITMAPINFO&       pInfo     =*(LPBITMAPINFO)(pInfor);
	LPVOID            pRGBData  =(LPVOID)(pInfo.bmiColors);
	CClientDC dc(this);
	HBITMAP hResult=CreateDIBitmap(dc.m_hDC,&pInfHeader,CBM_INIT,pRGBData,&pInfo,DIB_RGB_COLORS);
	return hResult;
}
void CAddressAdminDlg::show()
{
	if(this->p_CurrentImag!=NULL)
	{
		CStatic* pStc=(CStatic*)this->GetDlgItem(IDC_STATICimg);
		CPaintDC dc(pStc);
		RECT rt;
		pStc->GetClientRect(&rt);
		CDC MemDc;
		MemDc.CreateCompatibleDC(&dc);
		HBITMAP pTemp=(HBITMAP)MemDc.SelectObject(this->p_CurrentImag);
		dc.BitBlt(0,0,rt.right,rt.bottom,&MemDc,0,0,SRCCOPY);
		MemDc.SelectObject(pTemp);
	}
}
void CAddressAdminDlg::OnButton5() 
{
	// TODO: Add your control notification handler code here
	this->m_address="";
	this->m_name="";
	this->m_sex="";
	this->m_age=0;
	this->UpdateData(FALSE);
}
void CAddressAdminDlg::OnButton6() 
{
	// TODO: Add your control notification handler code here
	this->UpdateData();
	rs->AddNew();//添加新节点
	rs->GetFields()->GetItem(_variant_t("addr_name"))->Value=_variant_t(this->m_name.AllocSysString());
	rs->GetFields()->GetItem(_variant_t("addr_sex"))->Value=_variant_t(this->m_sex.AllocSysString());
	rs->GetFields()->GetItem(_variant_t("addr_address"))->Value=_variant_t(this->m_address.AllocSysString());
	rs->GetFields()->GetItem(_variant_t("addr_age"))->Value=_variant_t(this->m_age);
	//写b字段；
	SAFEARRAYBOUND bd[1];
	bd[0].lLbound=0;
	bd[0].cElements=this->iSize;
	SAFEARRAY* pArray=SafeArrayCreate(VT_UI1,1,bd);
	char* pTemp=(char*)(this->pBuffer);
	for(long i=0;i<iSize;i++)
	{
		SafeArrayPutElement(pArray,&i,pTemp++);
	}
	VARIANT abc;
	abc.vt=VT_ARRAY | VT_UI1;
	abc.parray=pArray;
	try{
		FieldPtr fld=rs->Fields->GetItem("addr_Picture");
		fld->AppendChunk(abc);
	}
	catch(_com_error ex)
	{
		int i=0;
		i++;
	}
	
	rs->Update();
	rs->Close();
	conn->Close();
}
void CAddressAdminDlg::ShowData()
{
    //提取第一条记录；
	if(!rs->adEOF && !rs->BOF)
	{//根据属性名赋值
		_variant_t vtname=rs->Fields->GetItem("addr_name")->Value;
		_variant_t vtage=rs->Fields->GetItem("addr_age")->Value;
		_variant_t vtsex=rs->Fields->GetItem("addr_sex")->Value;
		_variant_t vtaddress=rs->Fields->GetItem("addr_address")->Value;
		//万能型转成所需的内存数据类型
		this->m_age=vtage.lVal;
		this->m_name=CString(vtname.bstrVal);
		this->m_sex=CString(vtsex.bstrVal);
		this->m_address=CString(vtaddress.bstrVal);
		this->UpdateData(FALSE);//上传内存数据到对话框
		this->iSize=rs->Fields->GetItem("addr_picture")->ActualSize;//获取图片大小
		if(this->pBuffer!=NULL)//目的是在下一步前确保>pBuffer为空
		{
			delete this->pBuffer;
			this->pBuffer=NULL;
		}
		this->pBuffer=new CHAR[this->iSize];//开辟和图片大小一致的内存
		//复制图片二进制数据到万能指针中
		_variant_t vtdata=rs->Fields->GetItem("addr_picture")->GetChunk(this->iSize);
		BYTE* pTemp=NULL;
		//万能指针类型转成一般类型
		SafeArrayAccessData(vtdata.parray,(void **)&pTemp);
		//内存复制
		memcpy(this->pBuffer,pTemp,this->iSize);
		//解开安全数组的锁
		SafeArrayUnaccessData(vtdata.parray);
		//显示图片；
		this->p_CurrentImag=this->ShowImage();
		//刷新静态控件
		CStatic* pDc=(CStatic*)(this->GetDlgItem(IDC_STATICimg));
		pDc->Invalidate();
		//刷新窗体
		this->Invalidate(FALSE);
	}
}
void CAddressAdminDlg::OnButton3() 
{
	// TODO: Add your control notification handler code here
	if(!this->rs->adEOF)
	{
		this->rs->MoveNext();
		this->ShowData();
	}
}
void CAddressAdminDlg::OnButton2() 
{
	// TODO: Add your control notification handler code here
	if(!this->rs->BOF)
	{
		this->rs->MovePrevious();
		this->ShowData();
	}
}

						