Function nanovg_sys::nvgBoxGradient

pub unsafe extern "C" fn nvgBoxGradient(
    ctx: *mut NVGcontext, 
    x: c_float, 
    y: c_float, 
    w: c_float, 
    h: c_float, 
    r: c_float, 
    f: c_float, 
    icol: NVGcolor, 
    ocol: NVGcolor
) -> NVGpaint