driveexplorer.cpp

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

#include "stdafx.h"
#include "DriveExplorer.h"

#include "MainFrm.h"
#include "DriveExplorerDoc.h"
#include "FileShowView.h"
#include <dos.h>
#include <direct.h>

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

/////////////////////////////////////////////////////////////////////////////
// CDriveExplorerApp

BEGIN_MESSAGE_MAP(CDriveExplorerApp, CWinApp)
	//{{AFX_MSG_MAP(CDriveExplorerApp)
	ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
	// Standard file based document commands
	ON_COMMAND(ID_FILE_NEW, CWinApp::OnFileNew)
	ON_COMMAND(ID_FILE_OPEN, CWinApp::OnFileOpen)
	// Standard print setup command
	ON_COMMAND(ID_FILE_PRINT_SETUP, CWinApp::OnFilePrintSetup)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDriveExplorerApp construction

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

/////////////////////////////////////////////////////////////////////////////
// The one and only CDriveExplorerApp object

CDriveExplorerApp theApp;

/////////////////////////////////////////////////////////////////////////////
// CDriveExplorerApp initialization

BOOL CDriveExplorerApp::InitInstance()
{

	//应用程序只能运行一个实例
// 	HANDLE m_hMutex = ::CreateMutex(NULL, TRUE, m_pszAppName);
// 	if(GetLastError() == ERROR_ALREADY_EXISTS)
//		return FALSE;
	//用应用程序名创建信号量
	HANDLE hSem = ::CreateSemaphore(NULL, 1, 1, m_pszAppName);
	
	//判断信号量是否存在
	//信号量存在,说明已有实例在运行
	if(GetLastError() == ERROR_ALREADY_EXISTS)
	{
		AfxMessageBox(_T("应用程序已有运行实例，将转向此应用实例!"));
		//关闭信号量句柄
		CloseHandle(hSem);
		//寻找先前实例的窗口
		HWND hWndPrevious = ::GetWindow(::GetDesktopWindow(), GW_CHILD);
		while(::IsWindow(hWndPrevious))
		{
			//检查窗口是否有预设的标记
			//有，则是寻找的窗口
			if(::GetProp(hWndPrevious, m_pszAppName))
			{
				if(::IsIconic(hWndPrevious))
					::ShowWindow(hWndPrevious, SW_RESTORE);

				if(!::IsWindowVisible(hWndPrevious))
					::ShowWindow(hWndPrevious, SW_SHOWNORMAL);
				::SetForegroundWindow(hWndPrevious);
				::SetForegroundWindow(::GetLastActivePopup(hWndPrevious));
				return FALSE;
			}
			hWndPrevious = ::GetWindow(hWndPrevious, GW_HWNDNEXT);
		}
		
		//前一实例已存在，但找不到其窗口
		return FALSE;
	}
	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

	// Change the registry key under which our settings are stored.
	// TODO: You should modify this string to be something appropriate
	// such as the name of your company or organization.
	SetRegistryKey(_T("Local AppWizard-Generated Applications"));

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

	// Register the application's document templates.  Document templates
	//  serve as the connection between documents, frame windows and views.

	CSingleDocTemplate* pDocTemplate;
	pDocTemplate = new CSingleDocTemplate(
		IDR_MAINFRAME,
		RUNTIME_CLASS(CDriveExplorerDoc),
		RUNTIME_CLASS(CMainFrame),       // main SDI frame window
		RUNTIME_CLASS(CFileShowView));
	AddDocTemplate(pDocTemplate);

	// Parse command line for standard shell commands, DDE, file open
	CCommandLineInfo cmdInfo;
	ParseCommandLine(cmdInfo);

	// Dispatch commands specified on the command line
	if (!ProcessShellCommand(cmdInfo))
		return FALSE;

	// The one and only window has been initialized, so show and update it.
	m_pMainWnd->ShowWindow(SW_SHOW);
	m_pMainWnd->UpdateWindow();

	return TRUE;
}


/////////////////////////////////////////////////////////////////////////////
// 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:
	virtual BOOL OnInitDialog();
	//{{AFX_MSG(CAboutDlg)
	afx_msg void OnMouseMove(UINT nFlags, CPoint point);
	afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
	//}}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)
	ON_WM_MOUSEMOVE()
	ON_WM_LBUTTONDOWN()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

// App command to run the dialog
void CDriveExplorerApp::OnAppAbout()
{
	CAboutDlg aboutDlg;
	aboutDlg.DoModal();
}

/////////////////////////////////////////////////////////////////////////////
// CDriveExplorerApp message handlers


BOOL CAboutDlg::OnInitDialog()
{
	CDialog::OnInitDialog();	// CG:  This was added by System Info Component.

	// CG: Following block was added by System Info Component.
	{
		CString strFreeDiskSpace;
		CString strFreeMemory;
		CString strFmt;

		// Fill available memory
		MEMORYSTATUS MemStat;
		MemStat.dwLength = sizeof(MEMORYSTATUS);
		GlobalMemoryStatus(&MemStat);
		strFmt.LoadString(CG_IDS_PHYSICAL_MEM);
		strFreeMemory.Format(strFmt, MemStat.dwTotalPhys / 1024L);

		//TODO: Add a static control to your About Box to receive the memory
		//      information.  Initialize the control with code like this:
		SetDlgItemText(IDC_PHYSICAL_MEM, strFreeMemory);

		// Fill disk free information
		struct _diskfree_t diskfree;
		int nDrive = _getdrive(); // use current default drive
		if (_getdiskfree(nDrive, &diskfree) == 0)
		{
			strFmt.LoadString(CG_IDS_DISK_SPACE);
			strFreeDiskSpace.Format(strFmt,
				(DWORD)diskfree.avail_clusters *
				(DWORD)diskfree.sectors_per_cluster *
				(DWORD)diskfree.bytes_per_sector / (DWORD)1024L,
				nDrive-1 + _T('A'));
		}
		else
			strFreeDiskSpace.LoadString(CG_IDS_DISK_SPACE_UNAVAIL);

		//TODO: Add a static control to your About Box to receive the memory
		//      information.  Initialize the control with code like this:
		SetDlgItemText(IDC_DISK_SPACE, strFreeDiskSpace);
	}

	return TRUE;	// CG:  This was added by System Info Component.

}

//DEL void CAboutDlg::OnEmaile() 
//DEL {
//DEL 	// TODO: Add your control notification handler code here
//DEL 	
//DEL }

void CAboutDlg::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	CRect rect;
	CStatic* pEmail = (CStatic*)this->GetDlgItem(IDC_EMAILE);
	pEmail->GetWindowRect(rect);
	CPoint pt(point);
	ClientToScreen(&pt);
	if(rect.PtInRect(pt))
	{
		HCURSOR hCur = AfxGetApp()->LoadCursor(MAKEINTRESOURCE(IDC_CUR_MAIL));
		SetCursor(hCur);
	}
	CDialog::OnMouseMove(nFlags, point);
}

void CAboutDlg::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	CRect rect;
	CStatic* pEmail = (CStatic*)this->GetDlgItem(IDC_EMAILE);
	pEmail->GetWindowRect(rect);
	CPoint pt(point);
	ClientToScreen(&pt);
	if(rect.PtInRect(pt))
	{
		ShellExecute(NULL, "open", 
			"mailto:[e-mail],edu.cn?subject=意见&Body=如果您有啥建议请在此写入！", NULL, NULL, SW_SHOWNORMAL);
	}
	CDialog::OnLButtonDown(nFlags, point);
}