Function HPDF_Destination_SetFitR 

pub unsafe extern "C" fn HPDF_Destination_SetFitR(
    dst: HPDF_Destination,
    left: HPDF_REAL,
    bottom: HPDF_REAL,
    right: HPDF_REAL,
    top: HPDF_REAL,
) -> HPDF_STATUS