mouseMove中如何判断鼠标按下

[jspxnet]

private void MouseMove(java.awt.event.MouseEvent evt) {
if (如何判断鼠标按下) {

}

}

[网络咖啡]

在MouseMove里设置一个变量标志，然后在MouseDown时检测这个标志就可以了。

[skyyoung]

if(e.getModifiers() == InputEvent.BUTTON1_MASK || e.getModifiers() == InputEvent.BUTTON3_MASK)

[jspxnet]

java 不会这么变太吧???

[skyyoung]

/*
A basic extension of the java.applet.Applet class
*/
import java.awt.*;
import java.lang.*;
import java.applet.*;

public class DoubleClickApplet extends Applet
{
String mouseClickedString = "Mouse event : none";
String mouseClickedString2 = "Mouse double click : no";
long lastDownTime = 0;
final static long DOUBLE_CLICK_TIME = 500;
public boolean mouseDown(Event evt, int x, int y)
{
if((evt.when - lastDownTime) < DOUBLE_CLICK_TIME)
mouseDoubleClick(evt, x, y);
else
{
mouseClickedString2 = "Mouse double click : no";
repaint();
}
lastDownTime = evt.when;
mouseClickedString = "Mouse event : mouseDown";
getAppletContext().showStatus("Mouse Click");
repaint();
return false;
}
public boolean mouseDoubleClick(Event evt, int x, int y)
{
mouseClickedString2 = "Mouse double click : yes";
getAppletContext().showStatus("Mouse Double Click");
repaint();
return false;
}
public boolean mouseDrag(Event evt, int x, int y)
{
mouseClickedString = "Mouse event : mouseDrag";
getAppletContext().showStatus("Mouse Drag");
repaint();
return false;
}
public boolean mouseEnter(Event evt, int x, int y)
{
mouseClickedString = "Mouse event : mouseEnter";
getAppletContext().showStatus("Mouse Enter");
repaint();
return false;
}
public boolean mouseExit(Event evt, int x, int y)
{
mouseClickedString = "Mouse event : mouseExit";
getAppletContext().showStatus("Mouse Exit");
repaint();
return false;
}
public boolean mouseUp(Event evt, int x, int y)
{
mouseClickedString = "Mouse event : mouseUp";
getAppletContext().showStatus("Mouse Up");
repaint();
return false;
}
// public boolean mouseMove(Event evt,int x,int y)
// {
// mouseClickedString="Mouse event : mouseMove";
// mouseClickedString2="Mouse double click : no";
// repaint();
// return false;
// }
public void paint(Graphics g)
{
g.drawString(mouseClickedString, 20, 20);
g.drawString(mouseClickedString2, 20, 50);
}
}

[jspxnet]

to : skyyoung(路人甲)
不对啊! 我是在applet中,没有 InputEvent.BUTTON1_MASK
我改成
if (evt.getModifiers() == evt.BUTTON1_MASK) 也不对.