how to mask the lineEdit text with asterisks for password entry?

[wagmare]

go through this example
http://qt-project.org/doc/qt-4.8/widgets-lineedits.html
especially the echo mode ..

[prasad1001]

Thanks for the quick reply...
i have set the echoMode to 'password'. And now when i type the password it displays nothing...means only cursor is moving.
Now how to replace those null characters to asterisks or hash symbols..

Thanks in advance...

[anda_skoa]

The password echo mode does that, but the actual visualization depends on the widget style.
Try running your application with a different style if you don't like how the current one works.

Cheers,
_

[wagmare]

did u given the echo mode like this . it should work ..
lineEdit->setEchoMode(QLineEdit::Password);
in you code ..
please post a minimal compactible code ..
or follow as anda mentioned in earlier reply. change style ..

[prasad1001]

i have set the echoMode as stated by you...

mainwindow.h
private:
Ui::MainWindow *ui;
QLabel *labelPass;
mainwindow.cpp
linePass=ui->linePass;
linePass->setEchoMode(QLineEdit::Password);

but it getting a blank line edit even if i type in using password echo mode error.png
as shown in above fig..
and i also tested by setting password option in designer also...
please help me...

[prasad1001]

i have set the echoMode as stated by you...

mainwindow.h
private:
Ui::MainWindow *ui;
QLabel *labelPass;mainwindow.cpp
linePass=ui->linePass;
linePass->setEchoMode(QLineEdit::Password);but it getting a blank line edit even if i type in using password echo mode Click image for larger version Name: error.png Views: 6 Size: 13.2 KB ID: 10014
as shown in above fig..
and i also tested by setting password option in designer also...
please help me...

[ChrisW67]

Repeating yourself will not change the outcome. Doing something to try to help yourself might.

Here is the complete, small, test case you could have written to confirm the behaviour:

#include <QApplication>
#include <QLineEdit>
#include <QDebug>
 
int main(int argc, char **argv) {
  QApplication app(argc, argv);
  QLineEdit l;
  l.setEchoMode(QLineEdit::Password);
  l.show();
  qDebug() << "Should see dots" << QString(5, QChar(0x25CF)) << QString(5, QChar(0x2022));
  return app.exec();
}

#include <QApplication>
#include <QLineEdit>
#include <QDebug>

int main(int argc, char **argv) {
  QApplication app(argc, argv);
  QLineEdit l;
  l.setEchoMode(QLineEdit::Password);
  l.show();
  qDebug() << "Should see dots" << QString(5, QChar(0x25CF)) << QString(5, QChar(0x2022));
  return app.exec();
}

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Does it fail with this?

If not then the problem in your program is external to the QLineEdit.
Have you applied a style sheet? Is the text/foreground colour white?
Does your font have a glyph for Unicode code points U+25CF or U+2022 because these are selected in preference to '*' which is the fallback option.

[prasad1001]

Thanks for the reply....

i was tested with ur code also sir..but i am gettting the same result with blank spaces..My Qt creator version is 2.6.1.
and i was not used the stylesheet for the lineEdit..

And i didn't get ur point about the font i.e.."Does your font have a glyph for Unicode code points U+25CF or U+2022"..

Thank you in advance..

[ChrisW67]

Do you see dots the code prints in the debug output?

[prasad1001]

Sorry for the delay sir...
yes it prints the dots in debug output..

i was tried by changing the font styles also, but same problem i am getting..nothing displaying in the lineEdit...

Thanks in advance..

[anda_skoa]

Have you tried a different widget style? Maybe the one you are currently using is just displaying spaces?

Cheers,
_

[prasad1001]

Thanks for the quick reply...
I was tried with a new dialog and created every thing new..but same result.....

Thanks in advance..

[anda_skoa]

So the next thing would be to try my suggestion from comment #12

Cheers,
_