Type Definition windows_sys::Win32::System::AddressBook::LPCREATECONVERSATIONINDEX

pub type LPCREATECONVERSATIONINDEX = Option<unsafe extern "system" fn(cbparent: u32, lpbparent: *mut u8, lpcbconvindex: *mut u32, lppbconvindex: *mut *mut u8) -> i32>;

Required features: "Win32_System_AddressBook"