const char *al_get_path_drive(const ALLEGRO_PATH *path)
Introduced in 5.0.0

Return the drive letter on a path, or the empty string if there is none.

The "drive letter" is only used on Windows, and is usually a string like "c:", but may be something like "\\Computer Name" in the case of UNC (Uniform Naming Convention) syntax.

Examples: ex_path, ex_path_test