Hosting .exe Applications into a Dialog

// HostMSPaintDlg.cpp : implementation file
//

#include "stdafx.h"
#include "HostMSPaint.h"
#include "HostMSPaintDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CHostMSPaintDlg dialog

CHostMSPaintDlg::CHostMSPaintDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CHostMSPaintDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CHostMSPaintDlg)
		// 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 CHostMSPaintDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CHostMSPaintDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CHostMSPaintDlg, CDialog)
	//{{AFX_MSG_MAP(CHostMSPaintDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_COMMAND(ID_ACTION_HOSTMSPAINT, OnActionHostmspaint)
	ON_COMMAND(ID_ACTION_KILLPROCESS, OnActionKillprocess)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CHostMSPaintDlg message handlers

BOOL CHostMSPaintDlg::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
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CHostMSPaintDlg::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 CHostMSPaintDlg::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 CHostMSPaintDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}


HANDLE handle;//process handle
HWND apphwnd;//window handle

/*************Global functions for hosting******************/
//Function to enumerate all windows.
int CALLBACK EnumWindowsProc(HWND hwnd, LPARAM param)
{
DWORD pID;
DWORD TpID = GetWindowThreadProcessId(hwnd, &pID);//get process id
if (TpID == (DWORD)param)
{
apphwnd=hwnd;//hwnd is the window handle
return false;
}
return true;
}


//Functio to start a orocess and return the process handle
HANDLE StartProcess(LPCTSTR program, LPCTSTR args)
{

     HANDLE hProcess = NULL;
     PROCESS_INFORMATION processInfo;
     STARTUPINFO startupInfo;
     ::ZeroMemory(&startupInfo, sizeof(startupInfo));
     startupInfo.cb = sizeof(startupInfo);
     if(::CreateProcess(program, (LPTSTR)args, 
                        NULL,  // process security
                        NULL,  // thread security
                        FALSE, // no inheritance
                        0,     // no startup flags
                        NULL,  // no special environment
                        NULL,  // default startup directory
                        &startupInfo,
                        &processInfo))
        { /* success */
			Sleep(5000);
		 	::EnumWindows(&EnumWindowsProc, processInfo.dwThreadId);//Iterate all windows
	        hProcess = processInfo.hProcess;
        } /* success */
     return hProcess;
}

/**********************************************************/
//handle for host menu
void CHostMSPaintDlg::OnActionHostmspaint() 
{
	CRect rect;
	GetClientRect(&rect);//get our dialog size into rect
	handle=StartProcess("C:\\WINDOWS\\system32\\mspaint.exe","");//Start ms paint
	if(apphwnd!=NULL)//check for window handle
		{
			::SetParent(apphwnd,m_hWnd);//set parent of ms paint to our dialog.
			SetWindowLong(apphwnd, GWL_STYLE, WS_VISIBLE);//eraze title of ms paint window.
			//Positioning ms paint.
			::MoveWindow(apphwnd, rect.left, rect.top,rect.right, rect.bottom, true);
			
		}
	else//no window for our process
		MessageBox("Cannot find Window");	
}

//handle for kill process menu.
void CHostMSPaintDlg::OnActionKillprocess() 
{
	TerminateProcess(handle,0);	//kill the process using handle
}