iPhone UIGetScreenImage的代码示例

Question

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.

如果有人有代码示例,从原型定义到实际调用,那将非常感激.

Answer 1

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.