[c-prog] Group selection.

[wiz_mci]

Hello,
     Does anyone know how to handle selection and deslection of objects.
     I am able to select one object and highlight it and can toggle 
     the highlighting  on and off. But with multiple objects its not
working
     properly mainly when I am deselecting already selected objects. My
     objects are Integers. I am doing this in C++/C. Anyone got any 
     ideas?.