QLabel links?

[gfunk]

Under the docs for QLabel, http://doc.trolltech.com/4.2/qlabel.html, it talks about a new property called openExternalLinks, which
"Specifies whether QLabel should automatically open links using QDesktopServices :: OpenUrl() instead of emitting the anchorClicked() signal."

Is this for real? Is it saying that I can set up a QLabel to be clickable, like a web-browser link, and perhaps have the mouse cursor change when it hovers over the link? If so, how do I set the text so that it can hyperlink to a webpage? I tried something like
<a href=\"http://www.yahoo.com\">yahoo.com</a> but it wouldn't show up as a link, nor could I click on it.

[wysota]

Have you noticed this?

Note: The textInteractionFlags set on the label need to include either LinksAccessibleByMouse or LinksAccessibleByKeyboard.

[gfunk]

Yes, I had set the flags as well. But it still did not work, was not clickable, nor was it underlined. Is it automatically underlined or should that be done manually (<u> or such)?

[wysota]

This seems to work fine:

#include <QApplication>
#include <QLabel>
 
int main(int argc, char **argv){
  QApplication app(argc, argv);
  QLabel label;
  label.setTextInteractionFlags(Qt::LinksAccessibleByMouse);
  label.setOpenExternalLinks(true);
  label.setText("<a href=\"http://www.qtcentre.org\">QtCentre</a>");
  label.show();
  return app.exec();
}

#include <QApplication>
#include <QLabel>

int main(int argc, char **argv){
  QApplication app(argc, argv);
  QLabel label;
  label.setTextInteractionFlags(Qt::LinksAccessibleByMouse);
  label.setOpenExternalLinks(true);
  label.setText("<a href=\"http://www.qtcentre.org\">QtCentre</a>");
  label.show();
  return app.exec();
}

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Maybe the html code tags were changed into entities? Did you setup the text using Designer?