In addition , the sample demonstrates direct manipulation of a dib surface , as well as using higher - level compiler support for mmx and sse2 integer instructions to optimize bitmap manipulation without writing assembler code 另外,此示例闡釋了直接的dib圖面操作,以及如何使用對mmx和sse2整數(shù)指令的更高級別的編譯器支持,來優(yōu)化位圖操作而不必編寫匯編程序代碼。