RGB to long and Long to RGB

bool ReadColor(long nDecimal, int& nRVal,int& nGVal,int& nBVal)
{

/*nAVal = nDecimal & 0x000000FF;
nDecimal = nDecimal>>8;*/

nRVal = (nDecimal)& 0x000000FF;
nDecimal = nDecimal>>8;

nGVal = nDecimal & 0x000000FF;
nDecimal = nDecimal>>8;

nBVal = nDecimal & 0x000000FF;

return true;

}
bool CreateColor(long &nDecimal, int nRVal,int nGVal,int nBVal)
{


nDecimal = (nDecimal)& 0x00000000;
nDecimal = (nDecimal) | nBVal;
nDecimal = nDecimal<<8;
nDecimal = (nDecimal) | nGVal;
nDecimal = nDecimal<<8;
nDecimal = nDecimal | nRVal;
return true;



/*nDecimal = (nDecimal)& 0x00000000;
nDecimal = (nDecimal) | nRVal;
nDecimal = nDecimal<<8;
nDecimal = (nDecimal) | nGVal;
nDecimal = nDecimal<<8;
nDecimal = nDecimal | nBVal;
return true;*/
}