public static void Write(int arg, int offset, byte[] buffer) 
        { 
            if (buffer == null) 
            { 
                return; 
            } 
            if (offset > buffer.Length - 1) 
            { 
                return; 
            } 
            if (buffer.Length >= offset + sizeof(uint)) 
            { 
                unsafe 
                { 
#if UNSAFE 
                    fixed (byte* Buffer = buffer) 
                    { 
                        *((int*)(Buffer + offset)) = arg; 
                    } 
#else  
                    buffer[offset] = (byte)(arg);  
                    buffer[offset + 1] = (byte)(arg >> 8);  
                    buffer[offset + 2] = (byte)(arg >> 16);  
                    buffer[offset + 3] = (byte)(arg >> 24);  
#endif 
                } 
            } 
        }