Type Alias visa_sys::ViHndlr

source ·
pub type ViHndlr = Option<unsafe extern "system" fn(vi: ViSession, eventType: ViEventType, event: ViEvent, userHandle: ViAddr) -> ViStatus>;

Aliased Type§

enum ViHndlr {
    None,
    Some(unsafe extern "system" fn(_: u64, _: u64, _: u64, _: *mut c_void) -> i64),
}

Variants§

§1.0.0

None

No value.

§1.0.0

Some(unsafe extern "system" fn(_: u64, _: u64, _: u64, _: *mut c_void) -> i64)

Some value of type T.