Feat: 增加 flushwindow() 函数, 用于将后台帧缓冲中的内容显示到窗口 #160
Merged
+76
−34
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功能为将当前显示页(Visual Page)中的图像数据复制到窗口帧缓冲区。
在默认不设置绘图页的情况下, 用于显示和绘图的是同一个绘图页, 所以这个能够将绘图内容直接显示到窗口上,。
如果用户主动改变了绘图页,则需要用户自己控制显示页, 在绘图完成后, 将显示页和绘图页进行切换后再调用 flushwindow() 进行刷新