Type Alias windows_sys::Win32::UI::Accessibility::UiaEventCallback

pub type UiaEventCallback = Option<unsafe extern "system" fn(pargs: *mut UiaEventArgs, prequesteddata: *mut SAFEARRAY, ptreestructure: BSTR)>;

Required features: "Win32_System_Com"

Aliased Type

enum UiaEventCallback {
    None,
    Some(unsafe extern "system" fn(_: *mut UiaEventArgs, _: *mut SAFEARRAY, _: *const u16)),
}

Variants

None

No value.

Some(unsafe extern "system" fn(_: *mut UiaEventArgs, _: *mut SAFEARRAY, _: *const u16))

Some value of type T.