wzddlg.cpp

《vc++扩展编程实例》源码。运用Visual C++ 5.0或6.0的高级编程技巧

// WzdDlg.cpp : implementation file
//

#include "stdafx.h"
#include "wzd.h"
#include "WzdDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CWzdDialog dialog


CWzdDialog::CWzdDialog(CWnd* pParent /*=NULL*/)
	: CDialog(CWzdDialog::IDD, pParent)
{
	//{{AFX_DATA_INIT(CWzdDialog)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
}


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


BEGIN_MESSAGE_MAP(CWzdDialog, CDialog)
	//{{AFX_MSG_MAP(CWzdDialog)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CWzdDialog message handlers

void CWzdDialog::OnButton1() 
{
	CString str;
	ULARGE_INTEGER freeToCaller;
	ULARGE_INTEGER diskCapacity;
	ULARGE_INTEGER freeSpace;

	::GetDiskFreeSpaceEx(
		"c:\\",				// pointer to the directory name
		&freeToCaller,		// bytes available to caller
		&diskCapacity,		// total bytes on disk
		&freeSpace				// free bytes on disk
		);

	str.Format("Free space = %f meg",(double)freeSpace.LowPart/1024000.f);
	GetDlgItem(IDC_SIZE_STATIC)->SetWindowText(str);	
}