Re: re drawing question

you may want to look at Double Buffering

But if your squares need to be a different size if teh window is resized,
then you need to re-draw them.

can't you store the "random" colors used?

-CHB


On Sun, Nov 1, 2020 at 12:22 AM Phil <[email protected]> wrote:

> On 1/11/20 4:50 pm, Tim Roberts wrote:
> > What’s the point of one-time-only drawing? If your app gets covered by
> > another application or a menu or a system dialog, how do you think
> > that part of your window will get redrawn? Your onPaint handler needs
> > to be able to recreate the entire window to reflect your current state.
> > As a general rule, your mainline code should update variables and lists,
> and then call Refresh to trigger a call to onPaint to do the drawing.
>
> OK Tim, I see your point. I'll have to rethink the logic of what I'm
> trying to achieve.
>
> Fill_Board() creates a grid of randomly coloured squares. As it stands,
> resizing the window will recreate the board but with a different set of
> randomly coloured squares which is not what I want. The creation of the
> randomly coloured squares should be a one-time action and that's where a
> boolean one-time variable should take control. It seems clumsy to me at
> the moment, maybe the idea just needs some refining.
>
> --
>
> Regards,
> Phil
>
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