Managed C++/CLI

1. Get a pointer to the first DWORD, pPixel.
2. Assign the color componenent values of that pixel to a COLORREEF, color = *pPixel.
3. Multiply the RGB components to get the intensity (assuming that is the intensity definition...), intensity = GetRValue(color) * GetGValue(color) * GetBValue(color).
4. Store the pixel id and its intensity somehow (defined by you), StorePixelIntensity(id, intensity).
5. Continue to the next pixel, ++pPixel.
6. Goto 1 if there are more pixels.

// A bad example
int alloc_type(NODE** ptr)
{ return( (*ptr=(NODE*)malloc(sizeof(NODE)) != (NODE*)0) ); }
//
somefunc()
{
    NODE* ptr = (NODE*)0;
    if( alloc_type(&ptr) )
        // do some thing with the allocated data
}

class A {};
class B {};
A *castme = (A *) new B();

<br />
if (input is numeric)<br />
     if (input contains '.'){<br />
          AbrstrackTree<double> *p = new BTree<double>();<br />
          AbrstrackTree<double> *p = new BStarTree<double>();<br />
          AbrstrackTree<double> *p = new BPlusTree<double>();<br />
          AbrstrackTree<double> *p = new Trie<double>();<br />
         }<br />
     else {<br />
          AbrstrackTree<int> *p = new BTree<int>();<br />
          AbrstrackTree<int> *p = new BStarTree<int>();<br />
          AbrstrackTree<int> *p = new BPlusTree<int>();<br />
          AbrstrackTree<int> *p = new Trie<int>();<br />
         }<br />
<br />
if (input is char*){<br />
    AbrstrackTree<char> *p = new BTree<char>();<br />
    AbrstrackTree<char> *p = new BStarTree<char>();<br />
    AbrstrackTree<char> *p = new BPlusTree<char>();<br />
    AbrstrackTree<char> *p = new Trie<char>();<br />
   }<br />

<br />
typename int T;<br />
AbrstrackTree<T> *p = new BTree<T>();<br />
AbrstrackTree<T> *p = new BStarTree<T>();<br />
AbrstrackTree<T> *p = new BPlusTree<T>();<br />
AbrstrackTree<T> *p = new Trie<T>();<br />