SWT添加键盘事件

   sendText.addKeyListener(new KeyListener(){
   public void keyPressed(KeyEvent e) {
    if(e.keyCode == SWT.CR){
     //让按键原有的功能失效
     e.doit = false;
     //执行你自己的事件
     MessageBox box = new MessageBox(new Shell(), SWT.ICON_INFORMATION | SWT.OK);
        box.setText("提示信息");
        box.setMessage("按回车键了");
        box.open();
    }
   }
   public void keyReleased(KeyEvent e) {}
   });

package znewtest; import java.net.InetSocketAddress; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.Date; import org.eclipse.swt.SWT; import org.eclipse.swt.events.KeyEvent; import org.eclipse.swt.events.KeyListener; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.MessageBox; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; public class keyWindow { Display display; Shell shell; GridLayout gridLayout; GridData layoutData; Composite composite; Text sendText; Text mesText; DateFormat formatter = new SimpleDateFormat("HH:mm:ss"); public keyWindow(){ display = Display.getDefault(); shell = new Shell(display); //初始化shell initShell(); layoutData = new GridData(); layoutData.widthHint = 260; layoutData.heightHint = 200; mesText = new Text(shell, SWT.MULTI | SWT.WRAP |SWT.V_SCROLL |SWT.BORDER); mesText.setLayoutData(layoutData); layoutData = new GridData(); layoutData.widthHint = 260; layoutData.heightHint = 60; sendText = new Text(shell, SWT.MULTI | SWT.WRAP |SWT.V_SCROLL |SWT.BORDER); sendText.setLayoutData(layoutData); sendText.setFocus(); sendText.addKeyListener(new KeyListener(){ public void keyPressed(KeyEvent e) { if(e.keyCode == SWT.CR){ //让按键原有的功能失效 e.doit = false; //执行你自己的事件 MessageBox box = new MessageBox(new Shell(), SWT.ICON_INFORMATION | SWT.OK); box.setText("提示信息"); box.setMessage("按回车键了"); box.open(); } } public void keyReleased(KeyEvent e) {} }); } public void open() { shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) { display.sleep(); } } } /** * 设置窗口的标题、位置、大小、图标 * @return Shell */ public Shell initShell(){ shell.setText("交谈"); shell.setSize(400, 350); shell.setLayout(new GridLayout()); return shell; } /** * 向聊天区域添加信息 * @param msg */ public void addString(String mes) { mesText.setText(mes + "/n" + mesText.getText()); } public static void main(String[] args) { new keyWindow().open(); } }

 

完整示例

 

Color red = display.getSystemColor(SWT.COLOR_RED);
Font font = display.getSystemFont();
control.setFont(font)

Style	Description
SWT.WRAP	Wrap the text to fit the visible area
SWT.LEFT	Left-align the label
SWT.CENTER	Center-align the label
SWT.RIGHT	Right-align the label
SWT.SEPARATOR	Draw a separator instead of text or an image
SWT.HORIZONTAL	Draw the separator horizontally
SWT.VERTICAL	Draw the separator vertically
SWT.SHADOW_IN	Draw the separator with a "shadow in" effect
SWT.SHADOW_OUT`	Draw the separator

Separators

键盘事件类型

SWT.KeyDown		A key was pressed
SWT.KeyUp		A key was released

KeyEvent

KeyListener (and KeyAdapter)

keyPressed(KeyEvent) keyReleased(KeyEvent)

关于event中的character特殊键值

SWT.BS	退回 ('/b')
SWT.CR	回车 ('/r')
SWT.DEL	删除 ('/u007F')
SWT.ESC	ESC ('/u001B')
SWT.LF	换行 ('/n')
SWT.TAB	TAB跳格 ('/t')

SWT.CONTROL	<Ctrl>同 SWT.CTRL
SWT.SHIFT	<Shift>
SWT.ALT	<Alt>