Copy A non-Rectangular Image

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Re: What's the difference between "Click" and "Ckicked"?

Thanks a lot.

Re: button clicked to set text in another form

First, you should really read some Qt doc about Signals and Slots, there is link is in a previous message. It's the most important thing in Qt, so be sure it's not a waste a time.
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Re: Bifurcation diagram

OK. For now I seem able to achieve the diagram by using QwtPlotCurve::NoCurve and plotting many points as small circles instead.

Copy A non-Rectangular Image

hi

I am able to crop image by using the copy() function by copying image from rectItem that i have drawn,but when i rotate image to 20 degree or any degree and now i want to crop that rotate rect...

Re: button clicked to set text in another form

hi nix, i dont know what is emit
and you can a demo code for void transfertCompleted(QString)

in form1,i have a private slot as:
void form1::on_pushButton_clicked()
{
//some a calculate and...