List of addVerifyListener() Examples

Examples of addVerifyListener()

org.eclipse.swt.custom.StyledText.addVerifyListener()

Adds a verify listener. A Verify event is sent by the widget when the widget text is about to change. The listener can set the event text and the doit field to change the text that is set in the widget or to force the widget to ignore the text change. @param verifyListener the listener @exception SWTException

ERROR_WIDGET_DISPOSED - if the receiver has been disposed
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

@exception IllegalArgumentException

ERROR_NULL_ARGUMENT when listener is null

org.eclipse.swt.widgets.Text.addVerifyListener()

Adds the listener to the collection of listeners who will be notified when the receiver's text is verified, by sending it one of the messages defined in the VerifyListener interface. @param listener the listener which should be notified @exception IllegalArgumentException

ERROR_NULL_ARGUMENT - if the listener is null

@exception SWTException

ERROR_WIDGET_DISPOSED - if the receiver has been disposed
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

@see VerifyListener @see #removeVerifyListener

    {
        Text portText = toolkit.createText( parent, "" );
        GridData gd = new GridData( SWT.NONE, SWT.NONE, false, false );
        gd.widthHint = 42;
        portText.setLayoutData( gd );
        portText.addVerifyListener( new VerifyListener()
        {
            public void verifyText( VerifyEvent e )
            {
                if ( !e.text.matches( "[0-9]*" ) ) //$NON-NLS-1$
                {

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Examples of addVerifyListener()

Examples of org.eclipse.swt.widgets.Text.addVerifyListener()