Please who can tell me why this disk serial number retrieval program is not working?

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C++

#include <windows.h>
#include <iostream>
#include <winioctl.h>
using namespace std;

BOOL GetDiskInfo(CHANGER_PRODUCT_DATA *Data)
{
	HANDLE hDevice;
	BOOL bResult;
	DWORD junk;

	hDevice = CreateFile(TEXT("\\\\.\\c:"),
		GENERIC_READ,
	FILES_HARE_READ|FILE_SHARE_WRITE,
	NULL,
	OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);

	if(hDevice == INVALID_FILE_VALUE)
	{
		cout<<could not access disk\n;
		return FALSE;
	}

	bResult = DviceIoControl(hDevice,IOCTL_CHANGER_PRODUCT_DATA,NULL,0,Data,sizeof(*Data),&junk,				(LPOVERLAPPED)	NULL);

	closeHandle(hDevice);
	return (bResult);
}

int main()
{
	CHANGER_PRODUCT_DATA Data;

	if(!GetDiskInfo(&Data)
	{
		cout<<Coul not rtrieve seial nuimber\n"
		exit(0);
	}

	cout<<Data.SerialNumber<<"\n";

	return 1;
}

Posted 5-May-11 6:01am

Gbenbam

Updated 5-May-11 6:54am

Hans Dietrich

v4

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Olivier Levrey · Answer 1 · 2011-05-05T06:24:00

How can this code compile? There are lots of typos inside...

Your GetDiskInfo function is not correct. Use this one:

C++

BOOL GetDiskInfo(CHANGER_PRODUCT_DATA *Data)
{
    HANDLE hDevice;
    BOOL bResult;
    DWORD junk;
 
    hDevice = CreateFile(_T("\\\\.\\C:"),
        0,
        FILE_SHARE_WRITE,
        NULL,
        OPEN_EXISTING,
        0,
        NULL);
 
    if(hDevice == INVALID_HANDLE_VALUE)
    {
        cout << "could not access disk\n";
        return FALSE;
    }
 
    bResult = DeviceIoControl(hDevice,
        IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS,
        NULL,
        0,
        Data,
        sizeof(*Data),
        &junk,
        NULL);
    CloseHandle(hDevice);
    return bResult;
}

Richard MacCutchan · Answer 2 · 2011-05-05T06:10:00

Solution 1

From MSDN[^]:

Return Value

If the operation completes successfully, the return value is nonzero.

If the operation fails or is pending, the return value is zero. To get extended error information, call GetLastError.

Posted 5-May-11 6:10am

Richard MacCutchan