iPhone UIGetScreenImage的代码示例 [英] Code example for iPhone UIGetScreenImage

问题描述

我在UIGetScreenImage上看过很多帖子，但是，这不是一个完整的工作（简短）代码示例。

I've seen a number of posts on UIGetScreenImage, however, not a complete working (short) code example.

如果有人有代码示例，请从原型定义到实际调用，非常感谢。

If anyone has a code example, from the prototype definition to an actual call, that would be greatly appreciated.

推荐答案

CGImageRef UIGetScreenImage(void);

....

    CGImageRef screen = UIGetScreenImage();
    UIImage* screenImage = [UIImage imageWithCGImage:screen];
    CGImageRelease(screen); // you need to call this. 
                           // UIGetScreenImage violates the CF memory management rules.
    // Use screenImage as you like.

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