Qt 10 converted to hex

decimal int converted to hex char[]

void Dec2hex (int x,char s[])
{
 int i,j,c;

 for (I=-1;x>0;i)
 {
  s[++i]=x%16;
  x/=16;
 }
 for (j=i;j>=0;j--)
 {
     if (s[j]<10) s[j]+=48;
     else s[j]+=55;
     s[i+1]= ' + ';
 }
 for (j=0;j<i;j++,i--)
 {c=s[j];s[j]=s[i];s[i]=c;}

}

Decimal string qstring converted to hexadecimal char, extracted 8 bits high, 8 bits lower

Char extractlow (QString str)
{
    bool OK;
    int Dec=str.toint (&ok,10)%256;
    QString hex= qstring::number (Dec, +). ToUpper ();
    Char Low=hex.toint (0,16);
    return low;
}
Char Extracthigh (QString str)
{
    bool OK;
    int Dec=str.toint (&ok,10)/256;
    QString hex= qstring::number (Dec, +). ToUpper ();
    Char High=hex.toint (0,16);
    return high;
}