Function PMSessionValidatePageFormat 

pub unsafe extern "C-unwind" fn PMSessionValidatePageFormat(
    print_session: PMPrintSession,
    page_format: PMPageFormat,
    changed: *mut u8,
) -> u32

Available on crate features PMCore and PMDefinitions only.

Safety

• print_session must be a valid pointer.
• page_format must be a valid pointer.
• changed must be a valid pointer or null.