BmpToJpg.rar_BMPTOJPG_bmptojpg dll_jpg to bmp_图片格式转换

// BmpToJpgDlg.cpp : implementation file // #include "stdafx.h" #include "BmpToJpg.h" #include "BmpToJpgDlg.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() ///////////////////////////////////////////////////////////////////////////// // CBmpToJpgDlg dialog CBmpToJpgDlg::CBmpToJpgDlg(CWnd* pParent /*=NULL*/) : CDialog(CBmpToJpgDlg::IDD, pParent) { //{{AFX_DATA_INIT(CBmpToJpgDlg) m_strBmp = _T(""); m_strJpg = _T(""); //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CBmpToJpgDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CBmpToJpgDlg) DDX_Text(pDX, IDC_EDIT1, m_strBmp); DDX_Text(pDX, IDC_EDIT2, m_strJpg); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CBmpToJpgDlg, CDialog) //{{AFX_MSG_MAP(CBmpToJpgDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_BUTTON1, OnButton1) ON_BN_CLICKED(IDC_BUTTON2, OnButton2) ON_BN_CLICKED(IDC_BUTTON3, OnButton3) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CBmpToJpgDlg message handlers BOOL CBmpToJpgDlg::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 CBmpToJpgDlg::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 CBmpToJpgDlg::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 CBmpToJpgDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } typedef bool(__stdcall CHANGE)(char *,char *); void CBmpToJpgDlg::OnButton1() { UpdateData(TRUE); HINSTANCE hInst; CHANGE *pFunc;/*/D:\\Program Files\\Borland\\CBuilder6\\Projects\\*/ hInst = ::LoadLibrary("jpgdll.dll"); pFunc = (CHANGE*)::GetProcAddress(hInst,"BmpToJpg"); pFunc(m_strBmp.GetBuffer(50),m_strJpg.GetBuffer(50)); m_strBmp.ReleaseBuffer(); m_strJpg.ReleaseBuffer(); ::FreeLibrary(hInst); } void CBmpToJpgDlg::OnButton2() { CFileDialog dlg(TRUE,"bmp",NULL,OFN_HIDEREADONLY |OFN_OVERWRITEPROMPT,"Bmp File(*.bmp)|*.bmp||"); if(dlg.DoModal()==IDOK){ m_strBmp = dlg.GetPathName(); UpdateData(FALSE); } } void CBmpToJpgDlg::OnButton3() { CFileDialog dlg(FALSE,"jpg",NULL,OFN_HIDEREADONLY |OFN_OVERWRITEPROMPT,"Jpg File(*.jpg)|*.jpg||"); if(dlg.DoModal()==IDOK){ m_strJpg = dlg.GetPathName(); UpdateData(FALSE); } }