在好例子网,分享、交流、成长!
您当前所在位置:首页C/C++ 开发实例桌面应用界面/GUI → VC++截屏,并截屏图像旋转(简单)

VC++截屏,并截屏图像旋转(简单)

桌面应用界面/GUI

下载此实例
  • 开发语言:C/C++
  • 实例大小:0.80M
  • 下载次数:31
  • 浏览次数:266
  • 发布时间:2019-07-10
  • 实例类别:桌面应用界面/GUI
  • 发 布 人:爱喝纯牛奶的爷们
  • 文件格式:.rar
  • 所需积分:1
 相关标签: VC++ c++ 旋转 图像 截屏

实例介绍

【实例简介】简单工具,用VC6.0 编译通过,都没问题。 类似于QQ的截图软件,并把截下来的图,进行选装。希望对大家用处

【实例截图】

from clipboard


from clipboard


from clipboard

【核心代码】

// ScreenShotsDlg.cpp : implementation file
//

#include "stdafx.h"
#include "ScreenShots.h"
#include "ScreenShotsDlg.h"
#include "math.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()

/////////////////////////////////////////////////////////////////////////////
// CScreenShotsDlg dialog

CScreenShotsDlg::CScreenShotsDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CScreenShotsDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CScreenShotsDlg)
	m_dushu = 0;
	m_angle = -1;
	m_magnitude = -1;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

	
}

void CScreenShotsDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CScreenShotsDlg)
	DDX_Control(pDX, IDC_IMAGE, m_Image);
	DDX_Text(pDX, IDC_EDIT_DUSHU, m_dushu);
	DDX_CBIndex(pDX, IDC_COM_ANGLE, m_angle);
	DDX_CBIndex(pDX, IDC_COM_MAGNITUDE, m_magnitude);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CScreenShotsDlg, CDialog)
	//{{AFX_MSG_MAP(CScreenShotsDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BTN_CATCH, OnBtnCatch)
	ON_BN_CLICKED(IDC_BTN_INCREASE, OnBtnIncrease)
	ON_BN_CLICKED(IDC_BTN_DECREASE, OnBtnDecrease)
	ON_WM_SIZE()
	ON_BN_CLICKED(IDC_BTN_RESTORE, OnBtnRestore)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

BEGIN_EASYSIZE_MAP(CScreenShotsDlg)
	EASYSIZE(IDC_STATIC_IMAGE,ES_BORDER,ES_BORDER,ES_BORDER,ES_BORDER,0)
	EASYSIZE(IDC_IMAGE,IDC_STATIC_IMAGE,IDC_STATIC_IMAGE,IDC_STATIC_IMAGE,IDC_STATIC_IMAGE,0)
	EASYSIZE(IDC_STATIC_CATCH,IDC_STATIC_IMAGE,ES_BORDER,ES_BORDER,IDC_STATIC_ROTATE,0)
	EASYSIZE(IDC_STATIC_ROTATE,IDC_STATIC_IMAGE,IDC_STATIC_CATCH,ES_BORDER,ES_BORDER,0)
END_EASYSIZE_MAP

/////////////////////////////////////////////////////////////////////////////
// CScreenShotsDlg message handlers

BOOL CScreenShotsDlg::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
	INIT_EASYSIZE;
	btest = FALSE;
	counts = 0;
	Dcounts = 0;
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CScreenShotsDlg::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 CScreenShotsDlg::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
	{
		CDC* pDC=m_Image.GetDC();
		CWnd* pWnd = GetDlgItem(IDC_IMAGE);
		RECT rect;
		pWnd->GetWindowRect(&rect);
		pWnd->ScreenToClient(&rect);
		CBrush brush2(RGB(255, 255, 255)); 
		pDC->FillRect(&rect,&brush2);
		ShowPicture();
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CScreenShotsDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CScreenShotsDlg::OnOK() 
{
	// TODO: Add extra validation here
}

void CScreenShotsDlg::OnBtnCatch() 
{
	// TODO: Add your control notification handler code here
	
	ShowWindow(SW_HIDE);
	Sleep(50);
	btest = TRUE;
	CCatchDlg dlg;
	INT_PTR nReturn = dlg.DoModal();
	ShowWindow(SW_SHOW);
	counts = 0;
	if(IDOK == nReturn)
	{
		ShowPicture();	
	}
}


void CScreenShotsDlg::OnBtnIncrease() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	counts = counts  1;
	if(m_magnitude==0)
	{
		m_magnitude = 1;
		m_dushu = m_angle   counts*m_magnitude;
		OnPaint();
	}
	else
	{
		m_dushu = m_angle   counts*m_magnitude;
		OnPaint();
	}

	UpdateData(FALSE);
}

void CScreenShotsDlg::OnBtnDecrease() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	Dcounts = Dcounts 1;
	if(m_magnitude==0 && m_angle == 0)
	{
		m_magnitude = 1;
		m_dushu = m_angle - m_magnitude;
		OnPaint();
	}
	else
	{
		m_dushu = m_dushu - m_magnitude;
		OnPaint();
	}
	UpdateData(FALSE);
}


void CScreenShotsDlg::OnSize(UINT nType, int cx, int cy) 
{
	CDialog::OnSize(nType, cx, cy);
	
	// TODO: Add your message handler code here
	UPDATE_EASYSIZE;
}


BOOL CScreenShotsDlg::ShowPicture()
{
	//UpdateData(TRUE);
	CDib m_bitmap;
	int width,height;
	if(btest == TRUE)
	{
		m_bitmap.LoadFile("D:\\lena1.bmp");

		BYTE* p_data;
		BYTE* temppixel;
		p_data=m_bitmap.GetData();

		CDC* pDC=m_Image.GetDC();

		BYTE* pBitmapdata=m_bitmap.GetData();

		LPBITMAPINFO pBitmapInfo=m_bitmap.GetInfo();

		width=m_bitmap.GetWidth();
		height=m_bitmap.GetHeight();
		//获取控件大小
		//CDC* pDC=m_pic.GetDC();
		CRect rc;
		CWnd *pWnd = GetDlgItem(IDC_IMAGE);//IDC_PIC_2D为控件ID
		pWnd->GetClientRect(&rc);//rc为控件的大小。
   

		int srcX1,srcX2,srcX3,srcX4;
		int srcY1,srcY2,srcY3,srcY4;

		srcX1=0;srcY1=0;
		srcX2=width-1;srcY2=0;
		srcX3=0;srcY3=height-1;
		srcX4=width-1;srcY4=height-1;

		double a=m_dushu;
		double fsin=sin(a/180*pi);
		double fcos=cos(a/180*pi);

		double tranX1,tranX2,tranX3,tranX4;
		double tranY1,tranY2,tranY3,tranY4;

		tranX1= fcos*srcX1 fsin*srcY1;
		tranY1=-fsin*srcX1 fcos*srcY1;
		tranX2= fcos*srcX2 fsin*srcY2;
		tranY2=-fsin*srcX2 fcos*srcY2;
		tranX3= fcos*srcX3 fsin*srcY3;
		tranY3=-fsin*srcX3 fcos*srcY3;
		tranX4= fcos*srcX4 fsin*srcY4;
		tranY4=-fsin*srcX4 fcos*srcY4;

	   int outwidth=(int)(max(fabs(tranX4-tranX1),fabs(tranX3-tranX2) 1.5));
	   int outheight=(int)(max(fabs(tranY4-tranY1),fabs(tranY3-tranY2) 1.5));

   

	   int w=width>outwidth?(width/2-outwidth/2):(outwidth/2-width/2);
	   int h=height>outheight?(height/2-outheight/2):(outheight/2-height/2);
	   int w1=width>outwidth?outwidth:width;
	   int h1=height>outheight?outheight:height;


	   temppixel=new BYTE[outwidth*outheight*4];
	   memset(temppixel,255,outwidth*outheight*4);

	   double num1=-0.5*outwidth*fcos-0.5*outheight*fsin 0.5*width;
	   double num2=0.5*outwidth*fsin-0.5*outheight*fcos 0.5*height;

	   BYTE** imageBuf0=CreatImage(p_data,width,height);
	   BYTE** imageBuf1=CreatImage(temppixel,outwidth,outheight);

 
	   //BYTE* objdata=NULL;
	   int x=0;
	   int y=0;

	   for (int j=0;j<outheight;j  )
	   {
		   for (int i=0;i<outwidth;i  )
		   {
			   x=(int)(i*fcos j*fsin num1);
			   y=(int)(-i*fsin j*fcos num2);

			   if (x==width)
				   x--;
			   if (y==height)
				   y--;

			   //copydata=p_data y*width x;
			   //objdata=temppixel j*outwidth i;

			   if (x>=0 && x<width && y>=0 && y<height)
				   //memcpy(objdata,copydata,outwidth*outheight);
				  // temppixel[(j*outwidth i)]=p_data[(y*width x)];
				  for (int kk=0;kk<3;kk  )
				   {
				   //temppixel[(j*outwidth i)]=p_data[(y*width x)];
					 // if (i>=x&&j>=y)
					   imageBuf1[j][i*4 kk]=imageBuf0[y][x*4 kk];
				   }

		   }
	   }
  
		//memcpy(copydata,temppixel,outwidth*outheight);

		m_bitmap.GetInfo()->bmiHeader.biHeight=outheight;
		m_bitmap.GetInfo()->bmiHeader.biWidth=outwidth;
		m_bitmap.GetInfo()->bmiHeader.biSizeImage=outwidth*outheight*4;

		
		::StretchDIBits(pDC->GetSafeHdc(),0,0,width,height,w,h,w1,h1, temppixel,
			pBitmapInfo,DIB_RGB_COLORS,SRCCOPY);

		delete temppixel;
	}
	
	return TRUE;
}

BYTE** CScreenShotsDlg::CreatImage(BYTE *Image, int width, int height, int bt)
{
	BYTE** imageBuf=(BYTE**)malloc(sizeof (BYTE*)*(height));
	for (int y=0;y<height;y  )
	{
		imageBuf[y]=Image y*width*bt;
	}
	return imageBuf;
}

void CScreenShotsDlg::OnBtnRestore() 
{
	// TODO: Add your control notification handler code here
	m_dushu =0;
	counts =0;
	Dcounts = 0;
	m_magnitude = 0;
	ShowPicture();
	UpdateData(FALSE);
}


实例下载地址

VC++截屏,并截屏图像旋转(简单)

不能下载?内容有错? 点击这里报错 + 投诉 + 提问

好例子网口号:伸出你的我的手 — 分享

网友评论

发表评论

(您的评论需要经过审核才能显示)

查看所有0条评论>>

小贴士

感谢您为本站写下的评论,您的评论对其它用户来说具有重要的参考价值,所以请认真填写。

  • 类似“顶”、“沙发”之类没有营养的文字,对勤劳贡献的楼主来说是令人沮丧的反馈信息。
  • 相信您也不想看到一排文字/表情墙,所以请不要反馈意义不大的重复字符,也请尽量不要纯表情的回复。
  • 提问之前请再仔细看一遍楼主的说明,或许是您遗漏了。
  • 请勿到处挖坑绊人、招贴广告。既占空间让人厌烦,又没人会搭理,于人于己都无利。

关于好例子网

本站旨在为广大IT学习爱好者提供一个非营利性互相学习交流分享平台。本站所有资源都可以被免费获取学习研究。本站资源来自网友分享,对搜索内容的合法性不具有预见性、识别性、控制性,仅供学习研究,请务必在下载后24小时内给予删除,不得用于其他任何用途,否则后果自负。基于互联网的特殊性,平台无法对用户传输的作品、信息、内容的权属或合法性、安全性、合规性、真实性、科学性、完整权、有效性等进行实质审查;无论平台是否已进行审查,用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。本站所有资源不代表本站的观点或立场,基于网友分享,根据中国法律《信息网络传播权保护条例》第二十二与二十三条之规定,若资源存在侵权或相关问题请联系本站客服人员,点此联系我们。关于更多版权及免责申明参见 版权及免责申明

;
报警