Type Definition windows_sys::Win32::System::AddressBook::LPOPENSTREAMONFILE

pub type LPOPENSTREAMONFILE = Option<unsafe extern "system" fn(lpallocatebuffer: LPALLOCATEBUFFER, lpfreebuffer: LPFREEBUFFER, ulflags: u32, lpszfilename: *const i8, lpszprefix: *const i8, lppstream: *mut IStream) -> HRESULT>;

Required features: "Win32_System_AddressBook", "Win32_System_Com"