取得硬盘大小的问题

[kindo]

C++练手，做一个硬盘信息小程序，关于取得硬盘空间问题被难倒了。代码如下：

DWORD     dwDrive; 
INT           nDrive; 

dwDrive   =   GetLogicalDrives(); 
char   dName[4]; 
CString   d; 

/*取得硬盘空间*/ 
PULARGE_INTEGER   _lpFreeBytesAvailable   =   0,   _lpTotalNumberOfBytes   =   0,   _lpTotalNumberOfFreeBytes   =   0; 
for   (   nDrive   =   0   ;   nDrive   <   26   ;   nDrive++   ){ 
       if   (   dwDrive   &   (1   < <   nDrive)   ){ 
                 sprintf(dName, "%c: ",(nDrive   +   'A ')); 
                 d   =   CString(dName); 
                 if(GetDiskFreeSpaceEx(d,(PULARGE_INTEGER)&_lpFreeBytesAvailable,(PULARGE_INTEGER)&_lpTotalNumberOfBytes,   
                                                      (PULARGE_INTEGER)&_lpTotalNumberOfFreeBytes)) 
                  { 
                     printf( "%2s   %I64i   %I64d   %I64d\n ",d, lpFreeBytesAvailable,_lpTotalNumberOfBytes   ,_lpTotalNumberOfFreeBytes); 
                  } 
       } 
  }
}

-==================================
问题在于，取得盘符没问题，取得的大小觉得怪怪的，请问该怎么修理啊
谢谢大家了。

[kindo]

自己搞定了

[就呆在云上]

给你一个google得到的：

/*取得IDE/EIDE接口硬盘的参数信息*/     
          void   ide_para(unsigned   char   *buff)     
            {     
            unsigned   char   *p;     
            int   i;     
            unsigned   int   flag2;     
            unsigned   char   flag;     
              
            p=buff;     
            outportb(0x1f6,0xa0);     
            outportb(0x1f7,0xec);     
            while(flag!=0x58)     
            flag=inportb(0x1f7);     
            for(i=0;i<256;i++)   /*读出256字节的信息*/     
            {     
            flag2=inport(0x1f0);     
            *p++=(flag2<<8)>>8;   /*把且出的字分割成两个字节*/     
            *p++=(flag2>>8);     
            }     
            printf("\n\r柱面数=%d",(int)(buff[3]*256+buff[2]));     
            printf("\n\r磁头数=%d",(int)(buff[7]*256+buff[6]));     
            printf("\n\r扇区数=%d",(int)(buff[0x0d]*256+buff[0x0c]));     
            printf("\n\r硬盘出厂编号=");     
            /*读出的信息中的两个字节位置颠倒，显示时反转*/     
            for(i=20;i<40;i++)     
            if(i%2==0)     
            printf("%c",buff[i+1]);     
            else     
            printf("%c",buff[i-1]);     
            printf("\n\r硬盘类型=");     
            for(i=54;i<94;i++)     
            if(i%2==0)     
            printf("%c",buff[i+1]);     
            else     
            printf("%c",buff[i-1]);     
            return;     
            }

[kindo]

谢谢1楼的朋友，不过想用微软给出的函数去做。