[Lazarus] Paintbox.Canvas copyrect problem

[Leonardo M. Ramé]

On 2012-05-07 17:29:41 -0300, Leonardo M. Ramé wrote:
> On 2012-05-07 17:12:46 -0300, Leonardo M. Ramé wrote:
> > On 2012-05-07 16:59:06 -0300, Leonardo M. Ramé wrote:
> > > Hi, I'm implementing a Copy to clipboard function to an application. It
> > > has to copy the contents of a TPaintBox's Canvas into the Clipboard, but
> > > found a bug, it copies the windows over the Paintbox too.
> > > 
> > > I've attached a screenshot showing a popup over the TPaintbox that's
> > > also copied with the paintbox's canvas.
> > > 
> > I must add this problem only happens on Windows. I've also tested it
> > using Linux and Wine and it works ok.
> > 
> 
> I've attached a sample project, containing a TPaintBox with an OnPaint
> event which just paints it in red color, then, I placed a TButton in the
> middle of the paintbox.
> 
> The onClick event of the button copies the contents of the PaintBox to
> the clipboard. But, as you can see, it also copies the button.
> 
> As the button is not part of the clipboard (it is over it, not part of
> it), it shouldn't be copied.
> 

I've registrerd this in Mantis: 

http://mantis.freepascal.org/view.php?id=21981

-- 
Leonardo M. Ramé
http://leonardorame.blogspot.com