imageshowerdlg.cpp

这是书上的代码

// ImageShowerDlg.cpp : implementation file
//

#include "stdafx.h"
#include "ImageShower.h"
#include "ImageShowerDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CImageShowerDlg dialog

CImageShowerDlg::CImageShowerDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CImageShowerDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CImageShowerDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

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

BEGIN_MESSAGE_MAP(CImageShowerDlg, CDialog)
	//{{AFX_MSG_MAP(CImageShowerDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_SHOW, OnShow)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CImageShowerDlg message handlers

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

	// 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
	
	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 CImageShowerDlg::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();
	}
}

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

CString CImageShowerDlg::GetCurPath()
{
	char exeFullPath[MAX_PATH];
	CString strPath;
	GetModuleFileName(NULL, exeFullPath, MAX_PATH);
	strPath = CString(exeFullPath);
	strPath = strPath.Left(strPath.ReverseFind('\\'));
	strPath += "\\";
	return strPath;
}

void CImageShowerDlg::OnShow() 
{
	char cCommandLine[MAX_PATH];
	PROCESS_INFORMATION pi;
	STARTUPINFO si = {sizeof(si)};

	// 启动子进程
	CString sCommandLine = GetCurPath() + "LandmineShower.exe";
	::strcpy(cCommandLine, sCommandLine);
	CreateProcess(NULL, cCommandLine, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi);
	Sleep(100);

	// 关闭子进程的主线程句柄
	CloseHandle(pi.hThread);
	
	// 隐藏控制台窗口
	m_hwnd3DShower = ::FindWindow(NULL, sCommandLine);
	if (m_hwnd3DShower != NULL)
		::ShowWindow(m_hwnd3DShower, SW_HIDE);

}

BOOL CImageShowerDlg::DestroyWindow() 
{
	// 关闭三维显示程序
	::PostMessage(m_hwnd3DShower, WM_CLOSE, 0, 0);

	return CDialog::DestroyWindow();
}