Function gmsh_sys::gmshOptionGetColor

pub unsafe extern "C" fn gmshOptionGetColor(
    name: *const c_char, 
    r: *mut c_int, 
    g: *mut c_int, 
    b: *mut c_int, 
    a: *mut c_int, 
    ierr: *mut c_int
)

Get the r, g, b, a value of a color option. name is of the form "category.option" or "category[num].option". Available categories and options are listed in the Gmsh reference manual, with the "Color." middle string removed.