How to create multiple windows in separated threads using Qt?

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Hello

I want to open multiple windows using multithread with one window one thread on single click.

Please solve this.

Thanks
Zain

ChrisW67

You cannot. All Qt GUI objects must reside in the main program thread.

Multiple non-GUI worker threads can communicate with GUI objects in the main thread using the signals/slots mechanism.

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Hello ChrisW67

If it is not possible then please tell me another solution to create multiple webView on single click.

ChrisW67

Threads are not required to have multiple windows. Something like:

@
void on_button_clicked() {
QWebview *webView1 = new QWebView;
webView1->setAttribute(Qt::WA_DeleteOnClose);
webView1->load(QUrl("http://qt-project.org"));
webView1->show();

QWebview *webView2 = new QWebView;
webView2->setAttribute(Qt::WA_DeleteOnClose);
webView2->load(QUrl("http://google.com"));
webView2->show();
}
@

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Thanks ChrisW67

Also I want to set time for each webView. After particular time webView should be closed.

So will it be feasible to use the code you have provided?

ChrisW67

Yes, using QTimer (in combination with QTime if necessary) in any number of ways.

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Thanks ChristW67

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Hello

There is issue in when i am setting timer.

I have used code as:

timer->stop

this give exception: "Exception at 0x61a3a53f, code: 0xc0000005: read access violation at: 0x0, flags=0x0"

ChrisW67

The value of timer is null (0) or otherwise invalid, dereferencing a null pointer is bad.

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I am unable to solve multhreading functionality to load video on multiple webview & set proxy for it for particular time.

Please tell better solution for this.