Function gdal_sys::GDAL_CG_Create

pub unsafe extern "C" fn GDAL_CG_Create(
    nWidth: c_int, 
    nHeight: c_int, 
    bNoDataSet: c_int, 
    dfNoDataValue: f64, 
    dfContourInterval: f64, 
    dfContourBase: f64, 
    pfnWriter: GDALContourWriter, 
    pCBData: *mut c_void
) -> GDALContourGeneratorH