Advanced C Programming
                                           Spring 2004


Exercise 7.
         
         
         Write a new version of the program from exercise 6. Now
         you have to use bitfields of a structure in all of the
         functions.

         In first two functions (set_fgc_intensity and 
         clear_fgc_intensity) use method demostrated in step 1 in
         the class. This means that you have only one attribute
         variable in the function and it is of type Tattr
         (structure containing bitfields). 

         In the next two functions (get_fgc_no and set_fgc_no) 
         use method demostrated in step 2 in the class. This means
         that you have to use only one attribute variable in the
         function and it is of type unsigned short int.

         In the last two functions (get_bgc_no and set_bgc_no) 
         use the third method demostrated in the class. This 
         means that you have to use two variables for attribute.
         One is Tattr (structure) and another is unsigned short
         int. The first is suitable for manipulation of the
         attribute and the second is suitable for functions 
         ReadConsoleOutputAttribute. Here you have to make
         assignments from unsigned short int to structure and 
         vice versa.