Question

以下代码在OSX上设置剪贴板文本。读剪贴板文本相当于什么？

static class OsxClipboard
{
    public static void SetText(string text)
    {
        var nsString = objc_getClass("NSString");
        var str = objc_msgSend(objc_msgSend(nsString, sel_registerName("alloc")), sel_registerName("initWithUTF8String:"), text);
        var dataType = objc_msgSend(objc_msgSend(nsString, sel_registerName("alloc")), sel_registerName("initWithUTF8String:"), NSPasteboardTypeString);

        var nsPasteboard = objc_getClass("NSPasteboard");
        var generalPasteboard = objc_msgSend(nsPasteboard, sel_registerName("generalPasteboard"));

        objc_msgSend(generalPasteboard, sel_registerName("clearContents"));
        objc_msgSend(generalPasteboard, sel_registerName("setString:forType:"), str, dataType);

        objc_msgSend(str, sel_registerName("release"));
        objc_msgSend(dataType, sel_registerName("release"));
    }

    [DllImport("/System/Library/Frameworks/AppKit.framework/AppKit")]
    static extern IntPtr objc_getClass(string className);

    [DllImport("/System/Library/Frameworks/AppKit.framework/AppKit")]
    static extern IntPtr objc_msgSend(IntPtr receiver, IntPtr selector);

    [DllImport("/System/Library/Frameworks/AppKit.framework/AppKit")]
    static extern IntPtr objc_msgSend(IntPtr receiver, IntPtr selector, string arg1);

    [DllImport("/System/Library/Frameworks/AppKit.framework/AppKit")]
    static extern IntPtr objc_msgSend(IntPtr receiver, IntPtr selector, IntPtr arg1, IntPtr arg2);

    [DllImport("/System/Library/Frameworks/AppKit.framework/AppKit")]
    static extern IntPtr sel_registerName(string selectorName);

    const string NSPasteboardTypeString = "public.utf8-plain-text";
}

Answer 1

public static string GetText()
{
    var nsString = objc_getClass("NSString");
    var nsPasteboard = objc_getClass("NSPasteboard");

    var nsStringPboardType = objc_msgSend(objc_msgSend(nsString, sel_registerName("alloc")), sel_registerName("initWithUTF8String:"), "NSStringPboardType");
    var generalPasteboard = objc_msgSend(nsPasteboard, sel_registerName("generalPasteboard"));
    var ptr = objc_msgSend(generalPasteboard, sel_registerName("stringForType:"), nsStringPboardType);
    var charArray = objc_msgSend(ptr, sel_registerName("UTF8String"));
    return Marshal.PtrToStringAnsi(charArray);
}

[DllImport("/System/Library/Frameworks/AppKit.framework/AppKit")]
static extern IntPtr objc_getClass(string className);

[DllImport("/System/Library/Frameworks/AppKit.framework/AppKit")]
static extern IntPtr objc_msgSend(IntPtr receiver, IntPtr selector);

[DllImport("/System/Library/Frameworks/AppKit.framework/AppKit")]
static extern IntPtr objc_msgSend(IntPtr receiver, IntPtr selector, string arg1);

[DllImport("/System/Library/Frameworks/AppKit.framework/AppKit")]
static extern IntPtr objc_msgSend(IntPtr receiver, IntPtr selector, IntPtr arg1);

[DllImport("/System/Library/Frameworks/AppKit.framework/AppKit")]
static extern IntPtr sel_registerName(string selectorName);

Answer 2

正如汉斯指出的那样，请考虑使用 NSPasteboard

概述   粘贴板服务器由所有正在运行的应用程序共享。它包含用户已剪切或复制的数据，以及一个应用程序想要传输到另一个应用程序的其他数据。 NSPasteboard对象是应用程序与服务器以及所有粘贴板操作的唯一接口。

NSPasteboard对象还用于在每个应用程序的“服务”菜单中列出的应用程序和服务提供商之间传输数据。拖动粘贴板用于传输用户拖动的数据。

您可以从以下链接获得更多详细信息：https://developer.apple.com/documentation/appkit/nspasteboard

这是复制和粘贴字符串的简单示例：

private static string[] pboardTypes = new string[] { "NSStringPboardType" };

public static void SetText(string text)
{
    NSPasteboard.GeneralPasteboard.DeclareTypes(pboardTypes, null);
    NSPasteboard.GeneralPasteboard.SetStringForType(text, pboardTypes[0]);
}

public static string GetText()
{
    return NSPasteboard.GeneralPasteboard.GetStringForType(pboardTypes[0]);
}

希望这会有所帮助！

Answer 3

要从剪贴板获取数据，您需要添加对Windows的引用。跟着做

1）项目：添加参考：网络：PresentationCore

2）项目：添加参考：网络：WindowBase

3）添加到模块顶部：使用System.Windows;

4）然后在代码中使用Clipboard方法之一，例如Clipboard.GetText（）;。

如何通过C＃使用DllImport在OSX上获取剪贴板文本？

3 个答案: