Why does not it run? (clipboard)

atsu

Why does not it run? sorry I cannot write English well.

import java.awt.datatransfer.*;
import java.awt.Toolkit;
 
void setup() {
  setClipboardString("abc");//
  println(getClipboardString());
}

KevinWorkman

What happens when you try to run this? Does it compile? Does it throw a runtime Exception? Something else?

atsu

import java.awt.datatransfer.*;
import java.awt.Toolkit;

  Final int abc = ("12345678")
  setClipboardString("abc");//

Error・・・unexpected token:int

KevinWorkman

I'm really not sure what you're trying to do here. Please post the exact code- for example, the final keyword should not be capitalized. Your syntax is also off, as it's missing semicolons and I'm not sure why you're setting an int equal to a String. What exactly are you trying to do?

atsu

sorry. I do not understand about this web site. sorry

Flu

Maybe something like this?

import java.awt.datatransfer.*;
import java.awt.Toolkit;

final static int abc = 1234;
String clipboardString = str(abc);

setClipboardString(clipboardString);

Untested code!

quark

I have deleted the other discussion about this topic because it had no useful information and it duplicated the question posted here.

Flu

I ran my code and apparently it says that the function setClipboardString does not exist. I tried declaring the clipboard class like:

import java.awt.datatransfer.*;
import java.awt.Toolkit;

Clipboard clipboard;

final static int abc = 1234;
String clipboardString = str(abc);

clipboard.setClipboardString(clipboardString);

But still no use. Are you sure of this function setClipboardString()? Where did you find the reference? Use Google Translate if you don't understand.

quark

The clipboard can be used for different data types, the solution below will copy and paste text only, but it is a starting point.

To use this code follow these 3 steps.

STEP 1 Create a second tab in the Processing IDE called GClip.java - the spelling, and upper/lower case must match exactly GClip.java

STEP 2 Copy this code into the GClip.java tab file.

import java.awt.*;
import java.awt.datatransfer.*;

public class GClip implements ClipboardOwner {

  /**
   * Static reference to enforce singleton pattern
   */
  private static GClip gclip = null;

  /**
   * Class attribute to reference the programs clipboard
   */
  private Clipboard clipboard = null;


  /**
   * Copy a string to the clipboard
   * @param chars
   */
  public static boolean copy(String chars) {
    if (gclip == null)
      gclip = new GClip();
    return gclip.copyString(chars);
  }

  /**
   * Get a string from the clipboard
   * @return the string on the clipboard
   */
  public static String paste() {
    if (gclip == null)
      gclip = new GClip();
    return gclip.pasteString();
  }

  /**
   * Ctor is private so clipboard is only created when a copy or paste is 
   * attempted and one does not exist already.
   */
  private GClip() {
    if (clipboard == null) {
      makeClipboardObject();
    }
  }

  /**
   * If security permits use the system clipboard otherwise create 
   * our own application clipboard.
   */
  private void makeClipboardObject() {
    SecurityManager security = System.getSecurityManager();
    if (security != null) {
      try {
        security.checkSystemClipboardAccess();
        clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
      } 
      catch (SecurityException e) {
        clipboard = new Clipboard("Application Clipboard");
      }
    } else {
      try {
        clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
      } 
      catch (Exception e) {
      }
    }
  }

  /**
   * Copy a string to the clipboard. If the Clipboard has not been created
   * then create it.
   * @return true for a successful copy to clipboard
   */
  private boolean copyString(String chars) {
    if (clipboard == null)
      makeClipboardObject();
    if (clipboard != null) {
      StringSelection fieldContent = new StringSelection (chars);
      clipboard.setContents (fieldContent, this);
      return true;
    }
    return false;
  }

  /**
   * Gets a string from the clipboard. If there is no Clipboard
   * then create it.
   * @return if possible the string on the clipboard else an empty string
   */
  private String pasteString() {
    // If there is no clipboard then there is nothing to paste
    if (clipboard == null) {
      makeClipboardObject();
      return "";
    }
    // We have a clipboard so get the string if we can
    Transferable clipboardContent = clipboard.getContents(this);

    if ((clipboardContent != null) &&
      (clipboardContent.isDataFlavorSupported(DataFlavor.stringFlavor))) {
      try {
        String tempString;
        tempString = (String) clipboardContent.getTransferData(DataFlavor.stringFlavor);
        return tempString;
      }
      catch (Exception e) {
        e.printStackTrace ();
      }
    }
    return "";
  }

  /**
   * Reqd by ClipboardOwner interface
   */
  public void lostOwnership(Clipboard clipboard, Transferable contents) {
  }
}

STEP 3 Copy the following code into the main tab for your sketch. It is a very simple demo of how to use GClip to copy and paste text.

String text = "Quark's clipper!";
String copyOfText;

// Copy to clipboard
GClip.copy(text);
println("Copied text = " + text);

// Paste text into String
copyOfText = GClip.paste();
println("Pasted text = " + copyOfText);