Type Alias PFN_vkVoidFunction 

pub type PFN_vkVoidFunction = Option<unsafe extern "system" fn()>;

Nullable native callback PFN_vkVoidFunction.

Khronos reference: PFN_vkVoidFunction

Aliased Type

pub enum PFN_vkVoidFunction {
    None,
    Some(unsafe extern "system" fn()),
}

Variants

None

No value.

Some(unsafe extern "system" fn())

Some value of type T.