我来了dlg.cpp

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// 我来了Dlg.cpp : implementation file
//
/*
[学VC、编游戏]
编著、程序设计：唐明理 2004.7
E-mail:  [e-mail]
*/
#include "stdafx.h"
#include "我来了.h"
#include "我来了Dlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

HBITMAP bit;	
HDC		MemDC;	
int		w,h;
CString dir;
CString cc;	

int		p;

BOOL loadbmp(CString cc);
/////////////////////////////////////////////////////////////////////////////
// CMyDlg dialog

CMyDlg::CMyDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMyDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMyDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMyDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMyDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMyDlg, CDialog)
	//{{AFX_MSG_MAP(CMyDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyDlg message handlers

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

	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here

	CString cc;
	cc="\r\n    这是《学VC、编游戏》的第一个示例：\r\n\r\n";
	cc+="   在这一章我们使用了以下知识、技术\r\n\r\n";
	cc+="1、在VC++中建立一个对话框程序，学习编译运行程序的方法。\r\n";
	cc+="2、引入了有关图形处理的数据结构：HBITMAP (设备相关位图)、HDC(设备场景).介绍了位图拷贝命令BitBlt()。\r\n";
	cc+="3、学习C++的功能函数的定义和使用方法。\r\n";
	cc+="4、学习调用图形的MFC方法LoadImage()和显示图形的方法\r\n";
	cc+="5、学习在编辑框上显示文字和在设备场景中显示文字的方法。\r\n\r\n";
	cc+="重点：在VC中创建程序、并显示图形。\r\n\r\n";

	cc+="程序设计:唐明理\r\n";
	cc+="E-mail:[e-mail]\r\n";
	SetDlgItemText(IDC_EDIT1,cc);

	MemDC =CreateCompatibleDC(0);

	dir="图片/";
	p=0;

	cc=dir+"地面.BMP";
	if(loadbmp(cc)==FALSE)
			{AfxMessageBox(cc+"没找到!");return FALSE; }
	SelectObject(MemDC,bit);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

// 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 CMyDlg::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();
	}
}

HCURSOR CMyDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CMyDlg::OnOK()
{	GetDlgItem(IDC_EDIT1)->ShowWindow(SW_HIDE);
	CClientDC dc(this);		//

	SetTextColor(MemDC,RGB(255,255,255));
	SetBkMode(MemDC,TRANSPARENT);
	cc="哈哈,我来了!!!";
	TextOut(MemDC,150,100,cc,lstrlen(cc));
	BitBlt(dc.m_hDC,0,0,400,300,MemDC,0,0,SRCCOPY);

	cc.Format("%s人/c%05d.bmp",dir,p);
	if(loadbmp(cc)==FALSE)		
			{AfxMessageBox(cc+"没找到!");return;}
	SelectObject(MemDC,bit);
	BitBlt(dc.m_hDC,200,160,w,h,MemDC,0,0,SRCCOPY);
//	CDialog::OnOK();
}
void CMyDlg::OnCancel()
{	DeleteDC(MemDC);
	DeleteObject(bit);
	CDialog::OnCancel();
}

BOOL loadbmp(CString cc)
{	DeleteObject(bit);	
	bit=(HBITMAP)LoadImage	
				(AfxGetInstanceHandle(),
				 cc,
				 IMAGE_BITMAP,	
				 0,	
				 0,	
				 LR_LOADFROMFILE|LR_CREATEDIBSECTION
				);
	if(bit==NULL) return FALSE;	
	DIBSECTION ds;
	BITMAPINFOHEADER &bm = ds.dsBmih;
	GetObject(bit,sizeof(ds),&ds);	
	w = bm.biWidth;	
	h = bm.biHeight;
	return TRUE;
}