For windowed applications, the back buffer format no longer needs to match the display-mode format because color conversion can now be done by the hardware (if the hardware supports color conversion).

• 对于窗口应用程序，背景缓冲格式不再需要去符合显示模式格式因为颜色变化现在会被硬件完成(如果硬件支持颜色转换)。