[Qt-interest] only a part of a widget as transparent

[Raja Rokkam]

Cool!! tht's a nice learning for me :-) . Thanks...

-Raja.

On Tue, Dec 15, 2009 at 1:48 PM, Nitin Mahajan <nitinm76 at yahoo.com> wrote:

>
>
> --- On Tue, 15/12/09, Raja Rokkam <rokkamraja at gmail.com> wrote:
>
> > From: Raja Rokkam <rokkamraja at gmail.com>
> > Subject: Re: [Qt-interest] only a part of a widget as transparent
> > To: nitinm76 at yahoo.com
> > Cc: qt-interest at trolltech.com
> > Date: Tuesday, 15 December, 2009, 1:42 PM
> > well I havent tried it and so really cannot
> > comment on using setMask(). But looking at documentation, I
> > am not sure if it will be possible.
>
> Just tried that and it is possible. Suppose you have two widgets w1 and w2
> and say w1 is on top of w2.
>
> Now if you want to punch a hole in w2,in the region where w1 and w2
> intersect, take the xored region of the two widgets and set the xored region
> as mask on w2.
>
> regards
>
> -Nitin
> >
> > Can you tell me your exact usecase as to why you need this
> > ?
> >
> > -Raja.
> >
> >
> > On Tue, Dec 15, 2009 at 1:27 PM,
> > Nitin Mahajan <nitinm76 at yahoo.com>
> > wrote:
> >
> >
> >
> >
> >
> > --- On Tue, 15/12/09, Raja Rokkam <rokkamraja at gmail.com>
> > wrote:
> >
> >
> >
> > > From: Raja Rokkam <rokkamraja at gmail.com>
> >
> > > Subject: Re: [Qt-interest] only a part of a widget as
> > transparent
> >
> > > To: nitinm76 at yahoo.com
> >
> > > Cc: qt-interest at trolltech.com
> >
> > > Date: Tuesday, 15 December, 2009, 12:39 PM
> >
> >
> >
> > How to do it using QWidget::setMask()?
> >
> >
> >
> > regards
> >
> >
> >
> > -Nitin
> >
> >
> >
> > > add another widget on part you want to make
> >
> > > transparent and set the window flag
> >
> > > setAttribute(Qt::WA_TranslucentBackground);
> >
> > >
> >
> > > On Tue, Dec 15, 2009 at 12:09 PM,
> >
> > > Nitin Mahajan <nitinm76 at yahoo.com>
> >
> > > wrote:
> >
> > >
> >
> > > How to make, only a part of a
> >
> > > widget as transparent?
> >
> > >
> >
> > >
> >
> > >
> >
> > > regards
> >
> > >
> >
> > >
> >
> > >
> >
> > > -Nitin
> >
> > >
> >
> > >
> >
> > >
> >
> > >
> >
> > >
> >
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> >
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