Mouse status without event?

Is there any way to get information about the mouse (e.g., which buttons if any are pressed) without an MouseEvent?
I'm listening for Component events, and in the componentResized method I'd like to know if the mouse button is down so I can ignore the resizing events until the user is done resizing. There's no "isAdjusting" option like JSlider has.
Thanks.
-J

What you could do is add a mouse listener to your component, and when you detect a mousePressed event, set an internal flag like "buttonDown" or something so that your componentResized method knows when to ignore that event. Maybe something like this:
myComponent.addMouseListener(new MouseAdapter()
    public void mousePressed(MouseEvent e)
      mouseButtonDown = true;
    public void mouseReleased(MouseEvent e)
      mouseButtonDown = false;
myComponent.addComponentListener(new ComponentAdapter()
    public void componentResized(ComponentEvent e)
      if (mouseButtonDown)
        return;
      // now do whatever

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Attachments:
ScrollEvent_LV71.zip ‏461 KB

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[http://forums.sun.com/thread.jspa?messageID=10811388]
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Hi Ned. I may have posted this issue a bit early, but this problem is also happening in Flashplayer 10. It's not exclusive to IrfanView.
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REPORT demo_sel_screen_pushbutton.
TABLES sscrfields.
DATA flag(1) TYPE c.
SELECTION-SCREEN:
BEGIN OF SCREEN 500 AS WINDOW TITLE tit,
    BEGIN OF LINE,
      PUSHBUTTON 2(10) but1 USER-COMMAND cli1,
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END OF SCREEN 500.
AT SELECTION-SCREEN.
MESSAGE i888(sabapdocu) WITH text-001 sscrfields-ucomm.
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      flag = '3'.
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Mouse Enter/Exit Events

Hi,
I've got a question regarding mouse enter/exit events. Specifically, I would like to know why so many mouse enter/exit events are generated. Suppose you stack multiple Panes like this:
@Override
public void start(Stage frame) throws Exception {
     Pane root = new Pane();
     frame.setScene(new Scene(root));
     addEnterExitHandlers(root, "root");
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     root.getChildren().add(fst);
     addEnterExitHandlers(fst, "first");
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     fst.getChildren().add(snd);
     addEnterExitHandlers(snd, "second");
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The resulting output looks like this:
root MOUSE_ENTERED
first MOUSE_ENTERED
root MOUSE_ENTERED_TARGET
second MOUSE_ENTERED
first MOUSE_ENTERED_TARGET
root MOUSE_ENTERED_TARGET
rect MOUSE_ENTERED
second MOUSE_ENTERED_TARGET
first MOUSE_ENTERED_TARGET
root MOUSE_ENTERED_TARGET
root MOUSE_EXITED
first MOUSE_EXITED
root MOUSE_EXITED_TARGET
second MOUSE_EXITED
first MOUSE_EXITED_TARGET
root MOUSE_EXITED_TARGET
rect MOUSE_EXITED
second MOUSE_EXITED_TARGET
first MOUSE_EXITED_TARGET
root MOUSE_EXITED_TARGET
This output is not accurate, because I inserted empty lines to visually group related elements.
As you can see, a MOUSE_ENTERED event is fired for every node and all parent nodes receive MOUSE_ENTER_TARGET events. I just thought that it would be sufficient to only fire the last group of enter/exit events, respectively, i.e.:
rect MOUSE_ENTERED
second MOUSE_ENTERED_TARGET
first MOUSE_ENTERED_TARGET
root MOUSE_ENTERED_TARGET
rect MOUSE_EXITED
second MOUSE_EXITED_TARGET
first MOUSE_EXITED_TARGET
root MOUSE_EXITED_TARGET
Is there a specific reason for the behavior?
Best regards,
Matthias

Hi Matthias,
yes, there is a reason for this. In vast majority of use-cases, the entered/exited handlers are added on a node to handle the case when mouse enters/exits the node. The _TARGET variants tell you "this node or some of its children was entered/exited", which is not quite it. So right now, if you want to check that fst was entered, you just do:
fst.setOnMouseEntered(new EventHandler<MouseEvent>() {
@Override public void handle(MouseEvent e) {
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If we generated only the last group of events as you suggest, you would have to do:
fst.addEventHandler(MouseEvent.MOUSE_ENTERED_TARGET, new EventHandler<MouseEvent>() {
@Override public void handle(MouseEvent e) {
    if (e.getTarget() == fst) {
      // your code
Even if we added the convenience handlers for the _TARGET variants (setOnMouseEnteredTarget), having to always check the target would be pretty annoying.
Cheers,
Pavel

Mouse status without event?

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