Qt-interest Archive, July 2007
[Fwd: Re: QWidget render problem ?]
Message 1 in thread
Andreas Pakulat wrote:
> On 12.07.07 18:50:26, BogDan Vatra wrote:
>> Hi All,
>>
>> I think i found a bug in render method of QWidget object
>> (http://doc.trolltech.com/4.3/qwidget.html#render).
>> I attach an exemple.
>> See before.png and after.png.
>
> Sorry, forget my first mail :)
>
> Anyway, there's no mentioning in the render() function that it works
> without showing the widget first.
>
> I don't think you can get around the show() (or setVisible(true))
>
> Andreas
>
Thans for your response,
The render() function is useless if it don't work with widget hidden.
I don't this is the problem, I made another example and the QWidget seem
to render corectly:
#include <QApplication>
#include <QPixmap>
#include <QDialog>
#include <QPushButton>
int main(int argc, char**argv)
{
QApplication app(argc,argv);
QDialog d;
QPushButton b("ok",&d);
QPixmap pd(d.size());
d.render(&pd);
pd.save("dialog.png"); // d is hidden !!!
QPixmap pb(b.size());
b.render(&pb);
pb.save("button.png"); // b is hidden !!!
return d.exec();
}
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