Function XmfImage_SaveFile 

pub unsafe extern "C" fn XmfImage_SaveFile(
    filename: *const c_char,
    data: *const u8,
    width: u32,
    height: u32,
    step: u32,
) -> bool

Performs a FFI call to XmfImage_SaveFile from the globally loaded dynamic library xmf

Safety

• The ABI of the function must be the one we expect
• See other preconditions in documentation of the C library