MFC获取磁盘空间大小

 

void CGetSpaceDlg::OnBtngs()
{
 // TODO: Add your control notification handler code here
 UpdateData(TRUE);
 CString strAllInfo;
 
    //获得磁盘空间信息
    ULARGE_INTEGER FreeAv,TotalBytes,FreeBytes;
    if (GetDiskFreeSpaceEx(m_fpath,&FreeAv,&TotalBytes,&FreeBytes))
    {
        //格式化信息，并显示出来
        CString strTotalBytes,strFreeBytes;
        //strTotalBytes.Format("Total:%u bytes",TotalBytes.QuadPart);
        //strFreeBytes.Format("Left:%u bytes",FreeBytes.QuadPart);
  
        strTotalBytes.Format("Total:%luM",TotalBytes.QuadPart/(ULONGLONG)(1024*1024));
        strFreeBytes.Format("Left:%luG",FreeBytes.QuadPart/(ULONGLONG)(1024*1024*1024));
        strAllInfo.Format("Info:[%s] %s %s \nU can use %luG",m_fpath,strTotalBytes,strFreeBytes, FreeAv.QuadPart/(ULONGLONG)(1024*1024*1024));/* 单位为G */

  MessageBox(strAllInfo);
 }
}