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】
【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);
}
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