Re: [wxperl-users] DCPaint Widget Question

[Mark D. <mar...@zn...>]

Hi,

I assume you just want to remove individual items rather than clear the
whole canvas?

Sorry, I have no code snippet but the function you need is

Wx::DC::SetLogicalFunction

The general approach is to repeat the drawing code after setting the
appropriate logical function - so overwriting returns you to the
original background. I don't have the correct logical functions to use,
but hopefully this points you in the right direction.

Regards

Mark


Gene Beaumont wrote:
> Can anyone supply info and/or code snippet concerning how to undo/redo
> text & primitives that are drawn on a canvas that is created via the
> following:
> 
>      my $dc = Wx::PaintDC->new( $self );
> 
> Thanks,
> Gene
> 
> Eugene S. Beaumont Jr.
> Senior Consultant
> Intercept Technology Inc.
> *** Essayons ***
> Office: 1-404-352-0111 x924
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> http://www.intercept.com 
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