winapi_ui_automation::um::pdh

Type Alias CounterPathCallBack

Source 
pub type CounterPathCallBack = Option<unsafe extern "system" fn(DWORD_PTR) -> PDH_STATUS>;

Aliased Type§

pub enum CounterPathCallBack {
    None,
    Some(unsafe extern "system" fn(usize) -> i32),
}

Variants§

§1.0.0

None

No value.

§1.0.0

Some(unsafe extern "system" fn(usize) -> i32)

Some value of type T.