Type Alias opj_msg_callback 

pub type opj_msg_callback = Option<unsafe extern "C" fn(msg: *const c_char, client_data: *mut c_void)>;

Callback function prototype for events

Arguments

• msg - Event message
• client_data - Client object where will be return the event message

Aliased Type

pub enum opj_msg_callback {
    None,
    Some(unsafe extern "C" fn(*const i8, *mut c_void)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*const i8, *mut c_void))

Some value of type T.