Function winapi::um::fileapi::WriteFileEx

pub unsafe extern "system" fn WriteFileEx(
    hFile: HANDLE, 
    lpBuffer: LPCVOID, 
    nNumberOfBytesToWrite: DWORD, 
    lpOverlapped: LPOVERLAPPED, 
    lpCompletionRoutine: LPOVERLAPPED_COMPLETION_ROUTINE
) -> BOOL