After following some tutorials i tried to use exuberant ctags to autocomplete e.g. openGL functions. I used the command
ctags -R --languages=C,C++ --c++-kinds=+p --fields=+iaS --extra=+q ./
in the directory where the freeglut.h, glew.h etc resides. Then copying this to a directory pointed by in the .vimrc file (with 'set tags+=./myTag/tags' in my .vimrc) When I try to autocomplete some glut functions i dont get the funciton parameters listed, only the function itself gets completed, but without the parameters.
On the other hand, when Im applying the ctags command above to a .cpp file in the same directory where my main file resides it autocompletes with the function parameters. Im probably missing some essential information here.