win9x_win2k下对物理磁盘的操作

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}

char * CReadSectorDlg::ReadSectors(int head, int track, int sector, int numsec)
{




// getting logical sector from absolut head/track/sector ...
int LogicalSector = (sector-1) + (head*SECTORSPERTRACK) + (track*SECTORSPERTRACK*NUMOFHEADS) ;


typedef struct _DIOC_REGISTERS {
    DWORD reg_EBX;
    DWORD reg_EDX;
    DWORD reg_ECX;
    DWORD reg_EAX;
    DWORD reg_EDI;
    DWORD reg_ESI;
    DWORD reg_Flags;
} DIOC_REGISTERS ;




// char *buffer , errah[10], erral[10] ; 
 char *buffer ; 
 HANDLE hDevice ;
 DIOC_REGISTERS reg ;
 BOOL  fResult ;
 DWORD cb ;


 
 // Creating handle to vwin32.vxd  ...win 95 / 98 !
 hDevice = CreateFile ( "\\\\.\\vwin32", 0, 0, NULL, 0, FILE_FLAG_DELETE_ON_CLOSE, NULL );




 if ( hDevice == INVALID_HANDLE_VALUE ) 
 {


   //MessageBox ( "Error doing CreateFile () !" ) ;
 /* 
    ...this means that a handle to vwin32.vxd was not able to be opened ...
    ....so the operating system is not win 95/98 ...but NT , win2k ...or what (?) ..
    .....reading sectors is  more easy now .....
  */


HANDLE hDevice; 
char* buffer = (char*)malloc (512*numsec);
strset ( buffer , ‘ ‘);
DWORD bytesread ;


    
// Creating a handle to drive a: using CreateFile () function ..

hDevice = CreateFile("\\\\.\\c:", 
        GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, 
        NULL, OPEN_EXISTING, 0, NULL); 
 
    if (hDevice == INVALID_HANDLE_VALUE) 
{
MessageBox ("Failed !");
        return NULL;
}
    
// Setting the pointer to point to the start of the sector we want to read ..

SetFilePointer (hDevice, (LogicalSector*512), NULL, FILE_BEGIN); 


if (!ReadFile (hDevice, buffer, 512*numsec, &bytesread, NULL) )
{
/*
int err;
char error[10];
err=GetLastError ();
itoa (err, error, 10);
MessageBox (error, "Reading sectors ...Failed  ");
*/
return NULL ;
}


    CloseHandle(hDevice); 


return buffer ;
 }

http://download.csdn.net/detail/mao0514/7825687

win9x_win2k下对物理磁盘的操作

标签：style   http   os   io   for   ar   art   cti   log   

原文地址：http://blog.csdn.net/mao0514/article/details/38865043