SWTError: Not implemented [multiple displays]

Question

I am trying to open a SWT-file-browser in on button click event.

tnAddFiles.addSelectionListener(new SelectionAdapter() {
                @Override
                public void widgetSelected(SelectionEvent e) {
                     new FileBrowser();

                }
            });

I am getting this error

Exception in thread "main" org.eclipse.swt.SWTError: Not implemented [multiple displays]
    at org.eclipse.swt.SWT.error(SWT.java:4387)
    at org.eclipse.swt.widgets.Display.checkDisplay(Display.java:706)
    at org.eclipse.swt.widgets.Display.create(Display.java:807)
    at org.eclipse.swt.graphics.Device.<init>(Device.java:130)
    at org.eclipse.swt.widgets.Display.<init>(Display.java:699)
    at org.eclipse.swt.widgets.Display.<init>(Display.java:690)
    at com.rawzor.ui.FileBrowser.<init>(FileBrowser.java:34)

score 7 · Accepted Answer · answered Feb 08 '13 at 09:01

7

I guess you are using the implementation from that website. If this is the case, this code uses the following line:

Display display = new Display();

which will initialize a new Display. Since your application already has a Display this will lead to the

SWTError: Not implemented [multiple displays]

The solution would be to either use the built-in classes FileDialog for file selection:

FileDialog fd = new FileDialog(shell, SWT.OPEN);
fd.setText("Open file");
fd.setFilterPath("C:/");
String[] filterExt = { "*.txt", "*.doc", ".rtf", "*.*" };
fd.setFilterExtensions(filterExt);
String file= fd.open();
System.out.println(file);

or DirectoryDialog for directory selection:

DirectoryDialog dlg = new DirectoryDialog(shell);
dlg.setText("Choose directory");
dlg.setFilterPath("C:/");
String dir = dlg.open();
System.out.println(dir);

answered Feb 08 '13 at 09:01

Baz

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+1 @Baz Thanks, once again for the help, you real SWT champ. [Link is helpful](http://docs.oracle.com/javase/tutorial/uiswing/components/filechooser.html) – HDdeveloper Feb 08 '13 at 09:16
@HDdeveloper That link is only for Swing, not for SWT. – Baz Feb 08 '13 at 09:50
I'm having the same problem with a Shell instance. Do you know how I can fix that? Is there a Window class or something similar? Thanks. – Sam Saint-Pettersen Jul 14 '16 at 16:44
1

@SamSaint-Pettersen Please post your question as a separate one. Also make sure to include a code example and all the references. – Baz Jul 14 '16 at 17:33
@Baz: Will do. Thanks. – Sam Saint-Pettersen Jul 14 '16 at 18:47
@Baz: http://stackoverflow.com/questions/38420963/org-eclipse-swt-swterror-not-implemented-multiple-displays – Sam Saint-Pettersen Jul 17 '16 at 13:00

SWTError: Not implemented [multiple displays]

1 Answers1