[c-prog] setpixel function in c++

[Kool]

  I tried to run a program to display a line.
  header files used : graphics.h ,iostream.h ,math.h
   compiler used :turbo c++
   But I encountered a linker error....it read : "cannot read 
 setpixel() function"
  WHAT COULD BE THE POSSIBLE SOLUTION TO IT?