以编程方式从连接的 Mac 计算机获取 iOS 设备屏幕截图
我知道可以通过编程方式从 iOS 应用程序中的代码获取屏幕截图，并可以手动从 Xcode 和 Instruments 获取屏幕截图（Instruments 还会在 UIAutomation 测试失败期间自动获取屏幕截图）。我想找到一种编程方式（在 Mac 上运行代码，而不是在设备上）将设备的屏幕截图抓取到插入的 Mac 上。
Xcode 或 Instruments 是否有 API（或命令行参数）来访问此屏幕截图功能？或者（理想情况下）与设备连接并直接获取屏幕截图，就像 Xcode 和 Instruments 那样？
I know it's possible to get a screenshot programmatically from code in the iOS application, and to manually get screenshots from Xcode and Instruments (Instruments also automatically takes screenshots during UIAutomation test failures). What I would like to find is a programatic way (with code running on the Mac, not the device) to grab screenshots from the device onto the Mac which it is plugged into.
Is there an API (or command-line parameters) into Xcode or Instruments to get access to this screenshot feature? Or (ideally) to interface to the device and get a screenshot directly, the same way that Xcode and Instruments do it?
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是的，有办法。您想要安装免费的 libimobiledevice 库： https://github.com/benvium/libimobiledevice-macosx
安装后，您可以从命令行运行
idevicescreenshot，它会将带有屏幕截图的 TIFF 文件保存到当前目录。请参阅http://pervasivecode.blogspot.de/ 2012/06/take-iphone-or-ipad-screenshot-from.html
Yes, there is a way. You want to install the free libimobiledevice library: https://github.com/benvium/libimobiledevice-macosx
When it is installed, you can run
idevicescreenshotfrom the commandline and it will save a TIFF file with a screenshot to the current directory.See http://pervasivecode.blogspot.de/2012/06/take-iphone-or-ipad-screenshot-from.html
我不知道如何以编程方式从设备上获取屏幕截图并保存到 Mac 上，但您可以在运行应用程序时进入管理器，在列表中选择设备，然后在“屏幕截图”子菜单下单击新的屏幕截图按钮。您甚至不必调试应用程序，这可以随时完成。
此功能更有用的应用之一是能够捕获启动图像的默认屏幕，或创建 App Store 示例图像所需的图像。
I do not know how to programmatically get the screenshot off of the device and onto your Mac, but you can go into Organizer while you are running your application, select the device in the list, and under the Screenshots sub-menu, click on the New Screenshot button. You do not even have to be debugging the application, this can be done at any time.
One of the more useful applications of this feature is being able to capture a default screen for the launch image, or creating the images needed for the App Store sample images.
检查是否有 Xcode for Organizer snapshot 的 Applescript 字典条目。如果是这样，请以编程方式调用或运行此 Applescript 函数。
Check to see if there is a Applescript dictionary entry for Xcode for Organizer snapshot. If so, programmatically call or run this Applescript function.