如何在 OS X 上以编程方式粘贴?

问题描述：

我可以访问一般的NSPasteboard.我在粘贴板上写了我的 NSData.

I have access to the general NSPasteboard. I wrote to the pasteboard my NSData.

NSPasteboard *pboard = [NSPasteboard generalPasteboard];

[pboard clearContents];
[pboard setData:newContent forType:type];

现在我想以编程方式粘贴.文本光标在另一个应用程序中的正确位置闪烁.按 ⌘ + V 有效.

Now I want to paste programmatically. The text cursor is blinking on the correct position in another app. Hitting ⌘ + V works.

有人知道吗?也许如何粘贴以编程方式调用快捷方式?

Somebody know how? Maybe how to paste with calling the shortcut programmatically?

答

如果你想在自己的应用中执行粘贴动作，那么你可以使用 Responder Chain 发送 paste: 动作致第一响应者:

If you want to perform the paste action in your own app, then you can use the Responder Chain to send the paste: action to the first responder:

[NSApp sendAction:@selector(paste:) to:nil from:self];

文档说明了当您将 nil 作为 to: 参数传递时会发生什么:

The documentation says what happens when you pass nil as the to: parameter:

如果 aTarget 为 nil，则 sharedApplication 会查找可以响应消息的对象——即实现与 anAction 匹配的方法的对象.它从关键窗口的第一响应者开始.

If aTarget is nil, sharedApplication looks for an object that can respond to the message—that is, an object that implements a method matching anAction. It begins with the first responder of the key window.

但是，如果您想在另一个应用中执行粘贴操作，则没有真正的好方法.最好的情况是执行假装"cmd-v 操作，并希望这意味着在目标应用程序中粘贴"...

However, if you want to perform the paste action in another app, there's no real good way to do that. The best you can hope for is to perform a "pretend" cmd-v operation and hope that that means "paste" in the target app...

#import <Carbon/Carbon.h>

CGEventSourceRef source = CGEventSourceCreate(kCGEventSourceStateCombinedSessionState);
CGEventRef pasteCommandDown = CGEventCreateKeyboardEvent(source, kVK_ANSI_V, YES);
CGEventSetFlags(pasteCommandDown, kCGEventFlagMaskCommand);

CGEventRef pasteCommandUp = CGEventCreateKeyboardEvent(source, kVK_ANSI_V, NO);

CGEventPost(kCGAnnotatedSessionEventTap, pasteCommandDown);
CGEventPost(kCGAnnotatedSessionEventTap, pasteCommandUp);

CFRelease(pasteCommandUp);
CFRelease(pasteCommandDown);
CFRelease(source);

正如在另一条评论中提到的，这是一种粗暴的做法.它有点不安全(你并不总是知道 cmd-v 是什么意思)并且非常hackish.

As mentioned in another comment, this is kind of a gross way to do it. It's somewhat unsafe (you don't always know what cmd-v means) and is pretty hackish.

如何在 OS X 上以编程方式粘贴?

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