从 Cocoa 应用程序运行 Applescript [英] Running Applescript from a Cocoa application

问题描述

我想在可可应用程序中运行一个简单的 applescript.我阅读了关于此事的苹果文档，但对我(初学者)来说太混乱了，无法理解.

I want to run a simple applescript in a cocoa application. I read the apple documentation on the matter but it was too confusing for me (a beginner) to understand.

tell application "iTunes" to play

推荐答案

根据 文档，您使用NSAppleScript 类.

这个非常简短的 API 参考有一个名为初始化脚本"的部分，其中一种方法是 -initWithSource:，它接受一个 NSString.您将通过这种方式创建对象.

The very short API reference has a section called "Initializing a Script," one method of which is -initWithSource:, which takes an NSString. You'll create your object this way.

一旦你有了你的脚本对象，你就可以将 -compileAndReturnError: 然后 -executeAndReturnError: 作为单独的步骤，或者只是 -executeAndReturnError:>，根据该方法的文档，它首先尝试编译源代码(如果尚未编译)，然后执行.

Once you have your script object, you can then either -compileAndReturnError: then -executeAndReturnError: as separate steps, or just -executeAndReturnError:, which - according to the documentation for that method - tries to compile the source first if it's not been already, then executes.

因此，理论上，您可能可以在一行中完成所有这些.(alloc, init..., autorelease, executeAndReturnError:) 如果你像一个顽皮的开发者一样忽略错误.

So, in theory, you could probably do all this in one line. (alloc, init..., autorelease, executeAndReturnError:) if you ignore errors like a naughty developer.

注意 NSAppleScript 只能从主线程执行的警告(即不能从 NSOperation/Queue 或其他线程执行).

Note the warning that NSAppleScript can only be executed from the main thread (ie, not from an NSOperation/Queue or other threads).

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