mycvmfcdlg.cpp

你可以将硬盘上的任意一副真彩色图片显示在图片控件上~

// MyCVmfcDlg.cpp : 实现文件
//

#include "stdafx.h"
#include "MyCVmfc.h"
#include "MyCVmfcDlg.h"
#include "cv.h"
#include "highgui.h"
#include "MyIplClass.h"
#define IMAGE_WIDTH 354
#define IMAGE_HEIGHT 500
#define  IMAGE_CHANNELS 3

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// 用于应用程序“关于”菜单项的 CAboutDlg 对话框

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// 对话框数据
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持

// 实现
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()


// CMyCVmfcDlg 对话框




CMyCVmfcDlg::CMyCVmfcDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMyCVmfcDlg::IDD, pParent)
	, TheImage(NULL)
	
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMyCVmfcDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CMyCVmfcDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_BN_CLICKED(IDC_BTN_SHOW, &CMyCVmfcDlg::OnBnClickedBtnShow)
END_MESSAGE_MAP()


// CMyCVmfcDlg 消息处理程序

BOOL CMyCVmfcDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// 将“关于...”菜单项添加到系统菜单中。

	// IDM_ABOUTBOX 必须在系统命令范围内。
	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);
		}
	}

	// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
	//  执行此操作
	SetIcon(m_hIcon, TRUE);			// 设置大图标
	SetIcon(m_hIcon, FALSE);		// 设置小图标

	// TODO: 在此添加额外的初始化代码
	CvSize ImgSize;
	ImgSize.width = IMAGE_WIDTH;
	ImgSize.height = IMAGE_HEIGHT;
	TheImage = cvCreateImage(ImgSize,IPL_DEPTH_8U,IMAGE_CHANNELS);

	bmi = (BITMAPINFO*)buffer;
	bmih = &(bmi->bmiHeader);
	memset(bmih,0,sizeof(*bmih));
	bmih->biSize = sizeof(BITMAPINFOHEADER);
	bmih->biWidth = IMAGE_WIDTH;
	bmih->biHeight = -IMAGE_HEIGHT;
	bmih->biPlanes = 1;
	bmih->biCompression = BI_RGB;
	bmih->biBitCount = 8*TheImage->nChannels;
	palette = bmi->bmiColors;
	if(TheImage->nChannels == 1)
	{
		for(int i=0; i<256; i++)
		{
			palette[i].rgbBlue = palette[i].rgbGreen = palette[i].rgbRed = (BYTE)i;
			palette[i].rgbReserved = 0;
		}
	}

	return TRUE;  // 除非将焦点设置到控件，否则返回 TRUE
}

void CMyCVmfcDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// 如果向对话框添加最小化按钮，则需要下面的代码
//  来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
//  这将由框架自动完成。

void CMyCVmfcDlg::OnPaint()
{
	if (IsIconic())
	{
		CPaintDC dc(this); // 用于绘制的设备上下文

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// 使图标在工作矩形中居中
		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;

		// 绘制图标
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		DisplayMyData();
		CDialog::OnPaint();
	}
}

//当用户拖动最小化窗口时系统调用此函数取得光标显示。
//
HCURSOR CMyCVmfcDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}


void CMyCVmfcDlg::DisplayMyData()
{
	CPaintDC dc(this);
	CDC* pDC=&dc;
	int res = StretchDIBits(pDC->GetSafeHdc(),0,0,int(IMAGE_WIDTH),int(IMAGE_HEIGHT),0,0,
		                       IMAGE_WIDTH,IMAGE_HEIGHT,TheImage->imageData,
							   (BITMAPINFO*)bmi,DIB_RGB_COLORS,SRCCOPY);

	RedrawWindow(NULL,NULL,RDW_INVALIDATE);
	return ;
}

void CMyCVmfcDlg::OnBnClickedBtnShow()
{
	// TODO: 在此添加控件通知处理程序代码
	CMyIplClass* Img = new CMyIplClass;
	char filename[20] = "c:\\sd014.bmp";
	Img->LoadBMP(filename);
	Img->GetIplData(TheImage);
	delete Img;
	RedrawWindow(NULL,NULL,RDW_INVALIDATE);
}