功能齐全的屏幕截图MFC源码:ScreenCatch_plsu.rar

#include "pch.h" #include "math.h" #include "IO.H" #include "ScreenCatchDlg.h" #include "Rectangle.h" #include "Ellipse.h" #include "ArrowLine.h" #include "Curve.h" #include "Inputedit.h" #include "OutputText.h" #include "screencatch_api.h" #include "ScreenCatchInst.h" #include "afxwin.h" //#include "Color1.h" #pragma warning(disable:4996) extern MyRGB HBCDC; #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif #define GAP_BETWEEN_RECTTRACKER_AND_TOOLBAR 5 // 截图工具条CCatchToolbarDlg与矩形选择区域CCatchTracker之间的间距(竖直方向) #define WIDTH_DRAW_PEN 3 // 绘制图形时所用的画笔粗度 #define HORIZONTAL_GAP_FROM_CURSOR 16 // 放大后区域图距离鼠标当前位置的水平距离 #define VERTICAL_GAP_FROM_CURSOR 16 // 放大后区域图距离鼠标当前位置的竖直距离 // 放大后的目标区域的大小，是参考QQ的效果来设定的（此区域大小要和背景图ENLARGE_AREA_BK.bmp中的目标区域一致） #define ENLARGE_TARGET_AREA_WIDTH 116 // 放大后的目标区域的宽度 #define ENLARGE_TARGET_AREA_HEIGHT 84 // 放大后的目标区域的高度 // 参考QQ的效果，将鼠标周围区域的图片放大4倍，为了减少像素点的误差， // ENLARGE_TARGET_AREA_WIDTH和ENLARGE_TARGET_AREA_HEIGHT尽量设置成4的倍数 // 以鼠标点为中心，向四周扩展，水平方向上分别向左向右扩展HORIZONTAL_OFFSET_PIXEL，竖直方向上分别向上向下扩展VERTICAL_OFFSET_PIXEL， // 得到待放大的区域坐标 #define HORIZONTAL_OFFSET_PIXEL (ENLARGE_TARGET_AREA_WIDTH/4/2) // 4-放大倍速，2-计算当前鼠标向左向右偏移的距离（以计算出鼠标当前位置周围待放大的区域） #define VERTICAL_OFFSET_PIXEL (ENLARGE_TARGET_AREA_HEIGHT/4/2) #define SET_DLG_FOREGROUND_TIMER 300 // 在还没真正开始截图时定时将该截图对话框置顶，以规避有窗口跑到截图窗口之上的问题 extern void trpunc(MyRGB mma); CScreenCatchDlg::CScreenCatchDlg(CWnd* pParent /* = NULL */) : CDialog(CScreenCatchDlg::IDD, pParent) { // 初始化像皮筋类，新增的resizeMiddle类型 m_rectTracker.m_nStyle = CCatchTracker::resizeMiddle | CCatchTracker::solidLine; m_rectTracker.m_rect.SetRect(-1, -2, -3, -4); // 设置矩形边界颜色 m_rectTracker.SetRectColor(RGB(0, 174, 255)); // 设置矩形调整时光标，默认的比较小，设置大一点的(注意: 根据接口参数定义传入对应的光标ID) m_rectTracker.SetResizeCursor(IDC_CUR_RESIZE_N_S, IDC_CUR_RESIZE_W_E, IDC_CUR_RESIZE_NW_SE, IDC_CUR_RESIZE_NE_SW, IDC_CUR_MOVE_MIDDLE); // 获取彩色光标 m_hColorCursor = AfxGetApp()->LoadCursor(IDC_CUR_ARROW_COLOR); m_bRectCutting = FALSE; m_bInCatchCourse = FALSE; m_bQuit = FALSE; m_rectTrackerStartPt = 0; m_rectTrackerEndPt = 0; m_pCatchToobarDlg = NULL; m_bDrawImage = FALSE; m_bFirstDrawArrowLine = FALSE; m_emBtnSelected = emBtnNull; // 未选中绘图按钮，未选中绘图按钮，可以移动截取区域；选中绘图按钮后则不可以移动截图区域 m_drawStartPt = 0; m_drawPrePoint = 0; m_bRectTrackerMovable = TRUE; m_bLButtonDown = FALSE; m_bResizeTracker = FALSE; m_rcEnlargedArea.SetRect(0, 0, 0, 0); m_cursorPoint.SetPoint(0, 0); m_lBtnDownPoint.SetPoint(0, 0); m_hLightBitmap = NULL; m_hGreyBitmap = NULL; // 初始化刷新窗口区域 m_rgn m_rgn.CreateRectRgn(0, 0, 50, 50); // 加载放大区域绘制的背景图 m_pImgEnlargeAreaBk = LoadCImage(IDB_ENLARGE_AREA_BK, _T("PNG"), AfxGetInstanceHandle()); // 加载截取区域的尺寸区域绘制的背景图 m_pImgCutRectSizeDisplayBk = LoadCImage(IDB_CUTRECT_SIZE_DISPLAY_BK, _T("PNG"), AfxGetInstanceHandle()); } CScreenCatchDlg::~CScreenCatchDlg() { if (m_pImgEnlargeAreaBk != NULL) { delete m_pImgEnlargeAreaBk; m_pImgEnlargeAreaBk = NULL; } if (m_pImgCutRectSizeDisplayBk != NULL) { delete m_pImgCutRectSizeDisplayBk; m_pImgCutRectSizeDisplayBk = NULL; } if (m_fontInputEdit.GetSafeHandle() != NULL) { m_fontInputEdit.DeleteObject(); } if (m_rgn.GetSafeHandle() != NULL) { m_rgn.DeleteObject(); } // 由于m_hBitmap是通过调用CopyScreenToBitmap接口获取的，在接口中 // 使用CreateCompatibleBitmap创建得到的，所以在这个需要delete掉 if (m_hLightBitmap != NULL) { ::DeleteObject(m_hLightBitmap); } if (m_hGreyBitmap != NULL) { ::DeleteObject(m_hGreyBitmap); } // 将图元列表中图元对象释放掉 std::vector<CShape*>::iterator it = m_vpShapeList.begin(); for (; it != m_vpShapeList.end(); it++) { CShape* pShape = *it; if (pShape != NULL) { delete pShape; pShape = NULL; } } m_vpShapeList.clear(); if (m_pCatchToobarDlg != NULL) { m_pCatchToobarDlg->DestroyWindow(); delete m_pCatchToobarDlg; m_pCatchToobarDlg = NULL; } } void CScreenCatchDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //DDX_Control( pDX, IDC_EDIT_SHOW_TIP, //m_editShowTip ); } BEGIN_MESSAGE_MAP(CScreenCatchDlg, CDialog) ON_WM_PAINT() ON_WM_SETCURSOR() ON_WM_MOUSEMOVE() ON_WM_LBUTTONDOWN() ON_WM_LBUTTONUP() ON_WM_LBUTTONDBLCLK() ON_WM_ERASEBKGND() ON_WM_RBUTTONUP() ON_WM_CTLCOLOR() ON_WM_ACTIVATE() //ON_WM_TIMER() ON_MESSAGE(WM_UPDATE_TOOLBAR_POS, OnUpdateToolbarPos) ON_MESSAGE(WM_DETECT_ESCAPE_KEYDOWN, OnDetectEscapeKeydown) ON_MESSAGE(WM_DETECT_SAVE_HOTKEY_KEYDOWN, OnSaveHotKeyDown) ON_MESSAGE(WM_BTN_CLICKED_NOTIF, OnBtnClickedNotif) END_MESSAGE_MAP() BOOL CScreenCatchDlg::OnInitDialog() { CDialog::OnInitDialog(); SetWindowText(_T("屏幕截图")); // 获取屏幕分辩率 m_xScreen = GetSystemMetrics(SM_CXSCREEN); m_yScreen = GetSystemMetrics(SM_CYSCREEN); // 1、截取当前桌面图像，保存到亮色位图对象中 CRect rect(0, 0, m_xScreen, m_yScreen); m_hLightBitmap = CopyScreenToBitmap(&rect); if (m_hLightBitmap == NULL) { QuitForMemoryLack(); return FALSE; } // 2、截取当前桌面图像，保存到亮色位图对象中 // 暂时保存为亮色位图，后面要进行灰化处理 m_hGreyBitmap = CopyScreenToBitmap(&rect); if (m_hGreyBitmap == NULL) { QuitForMemoryLack(); return FALSE; } // 将亮色位图灰化，保存到m_hGrayBitmap中 DoGreyLightBmp(); CDC* pDC = GetDC(); // 3、创建用于双缓冲绘图的内存DC和位图 CString strLog; BOOL bRet = m_memDC.CreateCompatibleDC(pDC); if (!bRet) { strLog.Format(_T("[CCatchScreenDlg::OnInitDialog] 创建m_memDC失败, GetLastError: %d"), GetLastError()); WriteScreenCatchLog(strLog); QuitForMemoryLack(); return FALSE; } //bRet = m_memBitmap.CreateCompatibleBitmap( pDC, rect.Width(), rect.Height() ); // 不能调用CreateCompatibleBitmap去创建位图，该函数在内存不充足时会有创建失败的问题 // 换用CreateDIBSection创建DIB设备无关位图，解决内存不足引起的创建位图失败问题 HBITMAP hMemBmp = CreateDIBBitmap(rect.Width(), rect.Height()); if (hMemBmp == NULL) { strLog.Format(_T("[CCatchScreenDlg::OnInitDialog] 创建hMemBmp失败, GetLastError: %d"), GetLastError()); WriteScreenCatchLog(strLog); QuitForMemoryLack(); return FALSE; } m_memBitmap.Attach(hMemBmp); m_memDC.SelectObject(&m_memBitmap); // 4、创建拉动鼠标动态绘制图元过程中用的临时DC和位图 bRet = m_tmpDrawDC.CreateCompatibleDC(pDC); if (!bRet) { strLog.Format(_T("[CCatchScreenDlg::OnInitDialog] 创建m_tmpDrawDC失败, GetLastError: %d"), GetLastError()); WriteScreenCatchLog(strLog); QuitForMemoryLack(); return FALSE; } //bRet = m_tmpDrawBitmap.CreateCompatibleBitmap( pDC, rect.Width(), rect.Height() ); /