Type Definition windows_sys::Win32::Networking::WindowsWebServices::WS_READ_CALLBACK

pub type WS_READ_CALLBACK = Option<unsafe extern "system" fn(callbackstate: *const c_void, bytes: *mut c_void, maxsize: u32, actualsize: *mut u32, asynccontext: *const WS_ASYNC_CONTEXT, error: *const WS_ERROR) -> HRESULT>;

Required features: "Win32_Networking_WindowsWebServices"