TransparentWindowDlg.cpp
上传用户:aokegd
上传日期:2009-12-14
资源大小:1276k
文件大小:6k
- // TransparentWindowDlg.cpp : implementation file
- //
- #include "stdafx.h"
- #include "TransparentWindow.h"
- #include "TransparentWindowDlg.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()
- /////////////////////////////////////////////////////////////////////////////
- // CTransparentWindowDlg dialog
- CTransparentWindowDlg::CTransparentWindowDlg(CWnd* pParent /*=NULL*/)
- : CDialog(CTransparentWindowDlg::IDD, pParent)
- {
- //{{AFX_DATA_INIT(CTransparentWindowDlg)
- // 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 CTransparentWindowDlg::DoDataExchange(CDataExchange* pDX)
- {
- CDialog::DoDataExchange(pDX);
- //{{AFX_DATA_MAP(CTransparentWindowDlg)
- // NOTE: the ClassWizard will add DDX and DDV calls here
- //}}AFX_DATA_MAP
- }
- BEGIN_MESSAGE_MAP(CTransparentWindowDlg, CDialog)
- //{{AFX_MSG_MAP(CTransparentWindowDlg)
- ON_WM_SYSCOMMAND()
- ON_WM_PAINT()
- ON_WM_QUERYDRAGICON()
- ON_WM_ERASEBKGND()
- ON_WM_NCHITTEST()
- ON_WM_SHOWWINDOW()
- //}}AFX_MSG_MAP
- END_MESSAGE_MAP()
- /////////////////////////////////////////////////////////////////////////////
- // CTransparentWindowDlg message handlers
- BOOL CTransparentWindowDlg::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
- SetupRegion();
- return TRUE; // return TRUE unless you set the focus to a control
- }
- void CTransparentWindowDlg::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 CTransparentWindowDlg::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 CTransparentWindowDlg::OnQueryDragIcon()
- {
- return (HCURSOR) m_hIcon;
- }
- void CTransparentWindowDlg::SetupRegion()
- {
- CDC* pDC;
- CDC memDC;
- CBitmap cBitmap;
- CBitmap* pOldMemBmp = NULL;
- COLORREF col;
- CRect cRect;
- int x, y;
- CRgn wndRgn, rgnTemp;
- pDC = GetDC();
- GetWindowRect(&cRect);
- //将模板位图选进设备场景中
- cBitmap.LoadBitmap(IDB_MASK);
- memDC.CreateCompatibleDC(pDC);
- pOldMemBmp = memDC.SelectObject(&cBitmap);
- //创建模板形状的不规则区域
- wndRgn.CreateRectRgn(0, 0, cRect.Width(), cRect.Height());
- for(x=0; x<=cRect.Width(); x++)
- {
- for(y=0; y<=cRect.Height(); y++)
- {
- //将位图中黑色小圆洞对应的区域抠掉
- col = memDC.GetPixel(x, y);
- if(col == 0)
- {
- rgnTemp.CreateRectRgn(x, y, x+1, y+1);
- wndRgn.CombineRgn(&wndRgn, &rgnTemp, RGN_XOR);
- rgnTemp.DeleteObject();
- }
- }
- }
- if (pOldMemBmp) memDC.SelectObject(pOldMemBmp);
- //将不规则区域分配给窗体,也就是创建不规则的窗体
- SetWindowRgn((HRGN)wndRgn, TRUE);
- ReleaseDC(pDC);
- }
- BOOL CTransparentWindowDlg::OnEraseBkgnd(CDC* pDC)
- {
- CRect rect;
- GetWindowRect(&rect);
- CDC memDC;
- CBitmap cBitmap;
- CBitmap* pOldMemBmp = NULL;
- //将背景位图加到设备场景中
- cBitmap.LoadBitmap(IDB_BACK);
- memDC.CreateCompatibleDC(pDC);
- pOldMemBmp = memDC.SelectObject(&cBitmap);
- //将背景位图显示出来
- pDC->BitBlt(0, 0, rect.Width(), rect.Height(), &memDC, 0, 0, SRCCOPY);
- if (pOldMemBmp) memDC.SelectObject( pOldMemBmp );
-
- return TRUE;
- // return CDialog::OnEraseBkgnd(pDC);
- }
- UINT CTransparentWindowDlg::OnNcHitTest(CPoint point)
- {
- UINT nHitTest = CDialog::OnNcHitTest(point);
- return (nHitTest == HTCLIENT)? HTCAPTION:nHitTest;
- }
- void CTransparentWindowDlg::OnShowWindow(BOOL bShow, UINT nStatus)
- {
- CDialog::OnShowWindow(bShow, nStatus);
- //调整窗体大小,适应位图大小
- CRect rc;
- GetClientRect(&rc);
- rc.right = rc.left + 320;
- rc.bottom = rc.top + 150;
- MoveWindow(&rc,TRUE);
- }