get_realDiskNum()
{
int i;
int idx=0;
DWORD dwDrvBitMap = 0;
dwDrvBitMap = GetLogicalDrives();
char drive_root[5] = "A:\\";
for (i = 0; i < MAX_LOCAL_DRVS; i++)
{
if ((dwDrvBitMap >> i) & (0x1))
{
drive_root[0] = 'A' + i;
if (DRIVE_FIXED == GetDriveTypeA(drive_root))
{
idx++;
}
}
}
return idx;
}