CODEWITHSUNDEEP
c#gtkclipboard
David Davern
David Davern

Reputation: 273

C# Mono Linux - Grab contents of global clipboard

I am trying to simply "grab" text from the clipboard and put into a variable. I'm having a lot of trouble doing this. I've tried to use

Gtk.Clipboard.Get(Gdk.Atom.Intern("PRIMARY", true))

The code that I have so far, just returns "Gtk.Clipboard" to TextBox entry1.

Gtk.Clipboard clipboard = Gtk.Clipboard.Get(Gdk.Atom.Intern("PRIMARY", true));
string textClip = clipboard.ToString ();

entry1.Text = textClip;

So I am unable to do anything productive with this.

Upvotes: 2

Views: 1003

Answers (2)

Stefan Steiger
Stefan Steiger

Reputation: 82336

You could also have used the klipper DBus-interface.
That way, you can avoid a dependency on GTK#.

Here's the code for the Klipper DBus-Interface (a bit large for stackoverflow):
https://pastebin.com/HDsRs5aG

And the abstract class:
https://pastebin.com/939kDvP8

And the actual clipboard-code (requires Tmds.Dbus - for handling DBus)

using System.Threading.Tasks;

namespace TestMe
{
    using NiHaoRS; // TODO: Rename namespaces to TestMe

    public class LinuxClipboard
        : GenericClipboard

    {

        public LinuxClipboard()
        { }


        public static async Task TestClipboard()
        {
            GenericClipboard lc = new LinuxClipboard();
            await lc.SetClipboardContentsAsync("Hello KLIPPY");
            string cc = await lc.GetClipboardContentAsync();
            System.Console.WriteLine(cc);
        } // End Sub TestClipboard 


        public override async Task SetClipboardContentsAsync(string text)
        {
            Tmds.DBus.ObjectPath objectPath = new Tmds.DBus.ObjectPath("/klipper");
            string service = "org.kde.klipper";

            using (Tmds.DBus.Connection connection = new Tmds.DBus.Connection(Tmds.DBus.Address.Session))
            {
                await connection.ConnectAsync();

                Klipper.DBus.IKlipper klipper = connection.CreateProxy<Klipper.DBus.IKlipper>(service, objectPath);
                await klipper.setClipboardContentsAsync(text);
            } // End using connection 

        } // End Task SetClipboardContentsAsync 


        public override async Task<string> GetClipboardContentAsync()
        {
            string clipboardContents = null;

            Tmds.DBus.ObjectPath objectPath = new Tmds.DBus.ObjectPath("/klipper");
            string service = "org.kde.klipper";

            using (Tmds.DBus.Connection connection = new Tmds.DBus.Connection(Tmds.DBus.Address.Session))
            {
                await connection.ConnectAsync();

                Klipper.DBus.IKlipper klipper = connection.CreateProxy<Klipper.DBus.IKlipper>(service, objectPath);

                clipboardContents = await klipper.getClipboardContentsAsync();
            } // End Using connection 

            return clipboardContents;
        } // End Task GetClipboardContentsAsync 


    } // End Class LinuxClipBoardAPI 


} // End Namespace TestMe

AsyncEx is required in the abstract class for synchronizing in the get/set property. AsyncEx not required for the actual clipboard handling, as long as you don't want to utilize the get/set clipboard contents in a synchronous context.

Note: klipper must be running (which it is, if you use KDE).

Upvotes: 0

ziyasal
ziyasal

Reputation: 558

Try this piece of code to get text from system clipboard;

Gtk.Clipboard clipboard = Gtk.Clipboard.Get(Gdk.Atom.Intern("CLIPBOARD", false));
var text = clipboard.WaitForText();

For more information mono documentation

Upvotes: 1

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