Function mupdf_sys::mupdf_save_pixmap_as

pub unsafe extern "C" fn mupdf_save_pixmap_as(
    ctx: *mut fz_context, 
    pixmap: *mut fz_pixmap, 
    filename: *const c_char, 
    format: c_int, 
    errptr: *mut *mut mupdf_error_t
)