Help Me...to solve this prob...

bool bCompare(const BYTE* pData, const BYTE* bMask, const char* szMask)
{
    for(;*szMask;++szMask,++pData,++bMask)
        if(*szMask=='x' && *pData!=*bMask)  
            return 0;
    return (*szMask) == NULL;
}

DWORD FindPattern(DWORD dwAddress,DWORD dwLen,BYTE *bMask,char * szMask)
{
    for(DWORD i=0; i<dwLen; i++)
        if (bCompare((BYTE*)(dwAddress+i),bMask,szMask))  
            return (DWORD)(dwAddress+i);
    return 0;
}