C / C++ / MFC

#include <iostream>

using namespace std;

int main()
{

	int a = 200;

	void** b1 = (void**)&a;

	void* b2 = *b1;

	int b3 = (int)*b1;

	cout << (void*)b2 << endl;

	cout << (void*)b3 << endl;

	return 0;
}

// Defining color ranges
char redUpper = 100;
char redLower = 50;
char greenUpper = 150;
char greenLower = 130;
char blueUpper = 20;
char blueLower = 10;

//creating my pixel buffer
int* pBuffer = new int[200*200];
fillBufferWithData(pBuffer, 200*200); //some magic function the gets the image data into the buffer.

//analysing
char* pCursor = (char*)pBuffer;
for (int i = 0; i < 200*200; i++)
{
  //Every Pixel that is between the color range...
  if ((pCursor[0] > redLower) && (pCursor[0] < redUpper)
   && (pCursor[1] > greenLower) && (pCursor[1] < greenUpper)
   && (pCursor[2] > blueLower) && (pCursor[2] < blueUpper))
  {
    pCursor[3] = 0;
  }
  else
  {
    pCursor[3] = 255
  }

  pCursor += 4;
}
delete [] pBuffer;