Java by API/org.eclipse.swt.graphics

• Device
• GC
• Image
• Region

new FontData(String name, int height, int style)

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.FontDialog;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class MainClass {
  public static void main(String[] a) {
    final Display d = new Display();
    final Shell s = new Shell(d);
    s.setSize(300, 300);
    s.setText("A FontDialog Example");
    s.setLayout(new FillLayout(SWT.VERTICAL));
    final Text t = new Text(s, SWT.BORDER | SWT.MULTI);
    final Button b = new Button(s, SWT.PUSH | SWT.BORDER);
    b.setText("Change Font");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        FontDialog fd = new FontDialog(s, SWT.NONE);
        fd.setText("Select Font");
        fd.setRGB(new RGB(0,0,255));
        FontData defaultFont = new FontData("Courier",10,SWT.BOLD);
        fd.setFontData(defaultFont);     
        FontData newFont = fd.open();
        if(newFont==null)
            return;
        t.setFont(new Font(d, newFont));
        t.setForeground(new Color(d, fd.getRGB()));
        
      }
    });
    s.open();
    while (!s.isDisposed()) {
      if (!d.readAndDispatch())
        d.sleep();
    }
    d.dispose();
  }
}