Java Help - Must be simple - window does not redraw when uncovered

Author

Must be simple - window does not redraw when uncovered

David Aldred

2005-07-30, 9:01 am

Newbie question.... must be a simple answer to this!

I'm writing an essentially simple Java application (based on awt and
extending Frame, not a browser applet). It relies on graphics calls like
drawString and drawLine to set up a grid of numbers.

When it's running, if any other application comes to the foreground and
covers my application window, when that 'foreground' application goes away
again, my application doesn't redraw the grid - I'm just left with a blank
window (or partially blank if the other window didn't completely cover it).

I thought that explicitly redrawing everything on a windowActivated method
would sort this out, but it doesn't.

Where should I start?

--
David Aldred

David Aldred

2005-08-17, 9:16 am

Ian Shef wrote:

> You should be doing your drawing by overriding the method
> public void paint(Graphics g)
>
> probably in your extension of Frame.
>

Thanks, that sorted it.

Sorry about the delay - been AFK.

--
David Aldred

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