如何从NSPasteboard获取字节

在Hex Fiend:中打开了一个二进制文件

十六进制恶魔快照

我突出显示了第一个288字节，并使用CMD+C进行复制

然后我试着从代码中检索：

NSPasteboard *pboard = NSPasteboard.generalPasteboard;
NSString *content = [pboard stringForType:NSPasteboardTypeString];
NSData *data1 = [content dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO];
NSData *data2 = [pboard dataForType:NSPasteboardTypeString];

data1和data2看起来像：

{length = 435, bytes = 0x41c39a67 c28d3c18 c3847a1e c2bf5dc2 ... bac3884f 3274c3b8 }

我把CMD+V的内容粘贴到Sublime Text和VS code中，它们都可以正确显示：

Sublime快照

我的问题是：如何从NSPasteboard取回确切的288字节

谢谢你们！

更新：

NSPasteboard *pboard = NSPasteboard.generalPasteboard;
for (NSString *t in pboard.types) {
NSLog(@"pboard type: %@, data length: %ld", t, [pboard dataForType:t].length);
}
NSLog(@"----");
for (NSPasteboardItem *item in [pboard pasteboardItems]) {
for (NSString *type in [item types]) {
NSData *data = [item dataForType:type];
NSLog(@"item type: %@, data length: %ld", type, data.length);
}
}

结果：

2022-04-11 16:08:59.726507+0800 testapp[50006:2713553] pboard type: dyn.ah62d4rv4gu8yuvwusmy1q2pyqzbhw7dfkf3he2p3nbvg82pwqvnhw6df, data length: 341
2022-04-11 16:08:59.726649+0800 testapp[50006:2713553] pboard type: HFPrivateByteArrayPboardType, data length: 341
2022-04-11 16:08:59.733329+0800 testapp[50006:2713553] pboard type: public.utf8-plain-text, data length: 435
2022-04-11 16:08:59.733525+0800 testapp[50006:2713553] pboard type: NSStringPboardType, data length: 435
2022-04-11 16:08:59.733581+0800 testapp[50006:2713553] ----
2022-04-11 16:08:59.733722+0800 testapp[50006:2713553] item type: dyn.ah62d4rv4gu8yuvwusmy1q2pyqzbhw7dfkf3he2p3nbvg82pwqvnhw6df, data length: 341
2022-04-11 16:08:59.733806+0800 testapp[50006:2713553] item type: public.utf8-plain-text, data length: 435

我仍然无法获得预期的288字节

更新2

Clipboard Viewer的快照显示修改了不可见字符的字节。

HFPrivateByteArrayPoardType快照

不可见字符快照

是的，HexFiend是开源的，但代码对我来说很复杂：(我还没有弄清楚如何阅读HFPrivateByteArrayPboardTypeplist。