Function msfs::sys::nvgTextGlyphPositions

pub unsafe extern "C" fn nvgTextGlyphPositions(
    ctx: *mut NVGcontext,
    x: f32,
    y: f32,
    string: *const c_char,
    end: *const c_char,
    positions: *mut NVGglyphPosition,
    maxPositions: c_int
) -> c_int