Vapros za read/write secotors...

Da znaete kak moga da 4eta i zapisvam sectori vyrhy disketa s VC. Ne moga da izpolzvam CreateFile () za6toto sam pod WinMe :( !!!

Ako nqkoi ima idei ili pyk znae kak da stane tova 6te sam mnogo blagodaren, ako kaje :).

Blagodarq predvaritelno.

ami probwai s
int 21h
w MSDN ima niakakyw help - napishi "int 21" w index...

An application running on Windows Me/98/95 can use the DeviceIoControl function to send control codes directly to a virtual device driver (VxD). Any VxD can support any number of control codes, or none at all.


The system VxD, VWIN32.VXD, supports the input and output control (IOCTL) functions originally provided by MS-DOS Interrupt 21h. The following example shows how to call Get Media ID (Interrupt 21h Function 440Dh Minor Code 66h) from an application:

#define VWIN32_DIOC_DOS_IOCTL 1 

 

typedef struct _DEVIOCTL_REGISTERS 

{ 

    DWORD reg_EBX; 

    DWORD reg_EDX; 

    DWORD reg_ECX; 

    DWORD reg_EAX; 

    DWORD reg_EDI; 

    DWORD reg_ESI; 

    DWORD reg_Flags; 

} DEVIOCTL_REGISTERS, *PDEVIOCTL_REGISTERS; 

 

typedef struct _MID 

{ 

    WORD  midInfoLevel; 

    DWORD midSerialNum; 

    BYTE  midVolLabel[11]; 

    BYTE  midFileSysType[8]; 

} MID, *PMID; 

 

BOOL GetMediaID(PMID pmid, UINT nDrive) 

{ 

    DEVIOCTL_REGISTERS reg; 

 

    reg.reg_EAX = 0x440D;       // IOCTL for block devices 

    reg.reg_EBX = nDrive;       // zero-based drive ID 

    reg.reg_ECX = 0x0866;       // Get Media ID command 

    reg.reg_EDX = (DWORD) pmid; // receives media ID info 

 

    if (!DoIOCTL(&_reg))  // TRIABWA DA E bez _, ama HTML-a go dawa kato (r) znaka

        return FALSE; 

 

    if (reg.reg_Flags & 0x8000) // error if carry flag set 

        return FALSE; 

 

    return TRUE; 

} 

 

BOOL DoIOCTL(PDEVIOCTL_REGISTERS preg) 

{ 

    HANDLE hDevice; 

 

    BOOL fResult; 

    DWORD cb; 

 

    preg->reg_Flags = 0x8000; // assume error (carry flag set) 

 

    hDevice = CreateFile("\\\\.\\vwin32", 

        GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, 

        (LPSECURITY_ATTRIBUTES) NULL, OPEN_EXISTING, 

        FILE_ATTRIBUTE_NORMAL, (HANDLE) NULL); 

 

    if (hDevice == (HANDLE) INVALID_HANDLE_VALUE) 

        return FALSE; 

    else 

    { 

        fResult = DeviceIoControl(hDevice, VWIN32_DIOC_DOS_IOCTL, 

            preg, sizeof(*preg), preg, sizeof(*preg), &cb, 0); 

    } 

 

    CloseHandle(hDevice); 

 

    return fResult;

}

А за номерата на INT 21h функциите, които са за четене и писане на диск(ета), виж Interrupt list-a на Ralf Brown:
[линк]
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Не е важно да си добър, важното е да си ман-и-як!

Mersi mnogo :) ste go probvam!