pub type ETWENABLECALLBACK = Option<unsafe extern "system" fn(sourceid: *const GUID, controlcode: u32, level: u8, matchanykeyword: u64, matchallkeyword: u64, filterdata: *const EVENT_FILTER_DESCRIPTOR, callbackcontext: *mut c_void)>;
Expand description

Required features: "Win32_System_Diagnostics_Etw"

Aliased Type§

enum ETWENABLECALLBACK {
    None,
    Some(unsafe extern "system" fn(_: *const GUID, _: u32, _: u8, _: u64, _: u64, _: *const EVENT_FILTER_DESCRIPTOR, _: *mut c_void)),
}

Variants§

§1.0.0

None

No value.

§1.0.0

Some(unsafe extern "system" fn(_: *const GUID, _: u32, _: u8, _: u64, _: u64, _: *const EVENT_FILTER_DESCRIPTOR, _: *mut c_void))

Some value of type T.