elecdemo.cpp

模拟电子课程的教学演示程序

// ElecDemo.cpp : Defines the class behaviors for the application.
//

#include "stdafx.h"
#include "ElecDemo.h"
#include "ElecDemoDlg.h"
#include "mjsplash.h"

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

/////////////////////////////////////////////////////////////////////////////
// CElecDemoApp

BEGIN_MESSAGE_MAP(CElecDemoApp, CWinApp)
	//{{AFX_MSG_MAP(CElecDemoApp)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG
	ON_COMMAND(ID_HELP, CWinApp::OnHelp)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CElecDemoApp construction

CElecDemoApp::CElecDemoApp()
{
	// TODO: add construction code here,
	// Place all significant initialization in InitInstance
}

/////////////////////////////////////////////////////////////////////////////
// The one and only CElecDemoApp object

CElecDemoApp theApp;

/////////////////////////////////////////////////////////////////////////////
// CElecDemoApp initialization

BOOL CElecDemoApp::InitInstance()
{
	AfxEnableControlContainer();

	// Standard initialization
	// If you are not using these features and wish to reduce the size
	//  of your final executable, you should remove from the following
	//  the specific initialization routines you do not need.

#ifdef _AFXDLL
	Enable3dControls();			// Call this when using MFC in a shared DLL
#else
	Enable3dControlsStatic();	// Call this when linking to MFC statically
#endif
	SetRegistryKey(_T("MJSOFT"));

	LoadStdProfileSettings();  // Load standard INI file options (including MRU)


	CMJSplash splash;
	CString str;
	str=getPath()+"splash.jpg";
	splash.SetSplash(str);
    splash.AddSplashString("     模拟电子多媒体教学");
	splash.AddSplashString("     策      划：何召兰");
	splash.AddSplashString("     程序编写：何召兰  郭瑞杰");
	splash.AddSplashString("     动       画：何召兰  叶宏  ");
    splash.AddSplashString("     其他成员：王竹萍  黄昆  ");
	splash.AddSplashString("                     王军    景方  ");
		
	splash.SetXPos(80);
	splash.Show();

	CElecDemoDlg dlg;
	m_pMainWnd = &dlg;
	int nResponse = dlg.DoModal();
	if (nResponse == IDOK)
	{
		// TODO: Place code here to handle when the dialog is
		//  dismissed with OK
	}
	else if (nResponse == IDCANCEL)
	{
		// TODO: Place code here to handle when the dialog is
		//  dismissed with Cancel
	}

	// Since the dialog has been closed, return FALSE so that we exit the
	//  application, rather than start the application's message pump.
	return FALSE;
}


CString getPath()
{
	TCHAR Path[MAX_PATH];
	::GetModuleFileName(NULL,Path,MAX_PATH);
	CString sPath(Path);
	TCHAR szPath[_MAX_PATH];
	LPTSTR lpszName;

	GetFullPathName(sPath, _MAX_PATH, szPath, &lpszName);

	CString mPath = szPath;
	int p = mPath.Find(lpszName, 0);
	if (p > -1)
	{
		mPath.Delete(p, strlen(lpszName));
	}
	p = mPath.GetLength() - 1;
	if(mPath.GetAt(p) == '\\')
		mPath.Delete(p, 1);
	return mPath + '\\';
}
BOOL LoadPictureFile( LPCTSTR szFile, CBitmap* pBitmap, CSize& mSize)
{
	// open file
	HANDLE hFile = CreateFile(szFile, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
	if(INVALID_HANDLE_VALUE == hFile)
	{
		return FALSE;
		/*CString str;
		str.Format("载入图片:%s时出错!",szFile);
		AfxMessageBox(str);
		AfxGetApp()->GetMainWnd()->SendMessage(WM_CLOSE);*/
	}

	// get file size
	DWORD dwFileSize = GetFileSize(hFile, NULL);
	if(-1 == dwFileSize)
	{
		return FALSE;
		/*CString str;
		str.Format("载入图片:%s时出错!",szFile);
		AfxMessageBox(str);
		AfxGetApp()->GetMainWnd()->SendMessage(WM_CLOSE);*/
	}

	LPVOID pvData = NULL;
	// alloc memory based on file size
	HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE, dwFileSize);
	if(NULL == hGlobal)
	{
	/*	CString str;
		str.Format("载入图片:%s时出错!",szFile);
		AfxMessageBox(str);
		AfxGetApp()->GetMainWnd()->SendMessage(WM_CLOSE);*/
		return FALSE;
	}

	pvData = GlobalLock(hGlobal);
	_ASSERTE(NULL != pvData);

	DWORD dwBytesRead = 0;
	// read file and store in global memory
	BOOL bRead = ReadFile(hFile, pvData, dwFileSize, &dwBytesRead, NULL);
	_ASSERTE(FALSE != bRead);
	GlobalUnlock(hGlobal);
	CloseHandle(hFile);

	LPSTREAM pstm = NULL;
	// create IStream* from global memory
	HRESULT hr = CreateStreamOnHGlobal(hGlobal, TRUE, &pstm);
	_ASSERTE(SUCCEEDED(hr) && pstm);

	// Create IPicture from image file
	LPPICTURE gpPicture;

	hr = ::OleLoadPicture(pstm, dwFileSize, FALSE, IID_IPicture, (LPVOID *)&gpPicture);
	_ASSERTE(SUCCEEDED(hr) && gpPicture);	
	pstm->Release();

	OLE_HANDLE m_picHandle;
	gpPicture->get_Handle(&m_picHandle);
	pBitmap->DeleteObject();
	pBitmap->Attach((HGDIOBJ) m_picHandle);

	BITMAP bm;
	GetObject(pBitmap->m_hObject, sizeof(bm), &bm);
	mSize.cx = bm.bmWidth; //nWidth;
	mSize.cy = bm.bmHeight; //nHeight;
	return TRUE;
}