Type Alias ViewCustomCallback 

pub type ViewCustomCallback = Option<unsafe extern "C" fn(event: u32, context: *mut c_void) -> bool>;

View Custom callback

Arguments

• event - number of custom event
• context - pointer to context

Returns

true if event handled, false if event ignored

Aliased Type

pub enum ViewCustomCallback {
    None,
    Some(unsafe extern "C" fn(u32, *mut c_void) -> bool),
}

Variants

None

No value.

Some(unsafe extern "C" fn(u32, *mut c_void) -> bool)

Some value of type T.