[Dev-C++] How do I call a Windows function?

[Andrew S K. (tb) <aka...@gm...>]

My program has the following:

#include <windows.h>

And later on,
        LineTo( hDC, sx+2, sy+h+2 );

And when I link, I get the error:
  [Linker error] undefined reference to `LineTo@12'

NOTE: I am creating my own DLL and I want it to access the Windows DLL.

A. K.