Drag and Drop from System to Java

[dominic]

Hi,

I'm writing a program to accept dragging files from the OS (I'm using
Windows) to my Java application. Everything works fine, excpet that the Java
window cannot get the focus when drag enter/over. I tried to put

frame.requestFo cus();

in my DropTargetListe ner, but it still doesn't get the focus. I'm sure that
the code is being processed (I changed it to setVisible(fals e) and it
works!). So is it a constraint of Windows or what? Thanks.

--

[Philip Barr]

Re: Drag and Drop from System to Java

In the api it says this:

"Because the focus behavior of this method is platform-dependent, developers
are strongly encouraged to use requestFocusInW indow when possible."

.......don't know if that'll help?


"dominic" <dominickwan@so fthome.net> wrote in message
news:bga6b0$m0q 4@imsp212.netvi gator.com...[color=blue]
> Hi,
>
> I'm writing a program to accept dragging files from the OS (I'm using
> Windows) to my Java application. Everything works fine, excpet that the[/color]
Java[color=blue]
> window cannot get the focus when drag enter/over. I tried to put
>
> frame.requestFo cus();
>
> in my DropTargetListe ner, but it still doesn't get the focus. I'm sure[/color]
that[color=blue]
> the code is being processed (I changed it to setVisible(fals e) and it
> works!). So is it a constraint of Windows or what? Thanks.
>
> --
>
>
>[/color]

[dominic]

Re: Drag and Drop from System to Java

The result is still the same : (
In the dragOver function I used requestFocusInW indow(), and it returns true
but the window doesn't really get the focus.

But thanks anyway!

--


"Philip Barr" <philb@blueyond er.co.uk> wrote in message
news:YRcWa.1078 3$1n6.2122@news-binary.blueyond er.co.uk...[color=blue]
> In the api it says this:
>
> "Because the focus behavior of this method is platform-dependent,[/color]
developers[color=blue]
> are strongly encouraged to use requestFocusInW indow when possible."
>
> ......don't know if that'll help?
>
>[/color]

[Neomorph]

Re: Drag and Drop from System to Java

On Fri, 1 Aug 2003 10:25:05 +0800, "dominic" <dominickwan@so fthome.net>
two-finger typed:
[color=blue]
>The result is still the same : (
>In the dragOver function I used requestFocusInW indow(), and it returns true
>but the window doesn't really get the focus.
>
>But thanks anyway![/color]

If you're using Swing components, you may try to use the
javax.swing.Swi ngUtilities.inv okeLater() method to do the requestFocus
asynchronously, after all events have been processed.

Cheers.

[SPC]

Re: Drag and Drop from System to Java

Admittedly, I was dragging between frames in my own app, but I found
that this forced the frame to the top...
Window w = SwingUtilities. getWindowAncest or(HierarchyPan e.this);
if (w != null) {
w.show();
}

In the dragEnter method of my dropTargetListe ner.

HTH

Steve

[dominic]

Re: Drag and Drop from System to Java

Thanks all! This works fine now.

Dominic

--


"SPC" <steve@scholl.d emon.co.uk> wrote in message
news:aa6c6bcb.0 308010650.2f065 294@posting.goo gle.com...[color=blue]
> Admittedly, I was dragging between frames in my own app, but I found
> that this forced the frame to the top...
> Window w = SwingUtilities. getWindowAncest or(HierarchyPan e.this);
> if (w != null) {
> w.show();
> }
>
> In the dragEnter method of my dropTargetListe ner.
>
> HTH
>
> Steve[/color]