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QErrorMessage Class Reference
^{[QtGui module]}

The QErrorMessage class provides an error message display dialog. More...

Inherits QDialog.

Methods

• __init__ (self, QWidget parent = None)
• changeEvent (self, QEvent e)
• done (self, int)
• showMessage (self, QString message)
• showMessage (self, QString message, QString type)

Static Methods

• QErrorMessage qtHandler ()

For production applications, the class can be used to display messages which the user only needs to see once. To use QErrorMessage like this, you create the dialog in the usual way, and show it by calling the showMessage() slot or connecting signals to it.

The static qtHandler() function installs a message handler using qInstallMsgHandler() and creates a QErrorMessage that displays qDebug(), qWarning() and qFatal() messages. This is most useful in environments where no console is available to display warnings and error messages.

In both cases QErrorMessage will queue pending messages and display them in order, with each new message being shown as soon as the user has accepted the previous message. Once the user has specified that a message is not to be shown again it is automatically skipped, and the dialog will show the next appropriate message in the queue.

The Standard Dialogs example shows how to use QErrorMessage as well as other built-in Qt dialogs.

Method Documentation

QErrorMessage.__init__ (self, QWidget parent = None)

The parent argument, if not None, causes self to be owned by Qt instead of PyQt.

Constructs and installs an error handler window with the given parent.

QErrorMessage.changeEvent (self, QEvent e)

Reimplemented from QWidget.changeEvent().

QErrorMessage.done (self, int)

Reimplemented from QDialog.done().

QErrorMessage QErrorMessage.qtHandler ()

Returns a pointer to a QErrorMessage object that outputs the default Qt messages. This function creates such an object, if there isn't one already.

QErrorMessage.showMessage (self, QString message)

This method is also a Qt slot with the C++ signature void showMessage(const QString&).

Shows the given message, message, and returns immediately. If the user has requested for the message not to be shown again, this function does nothing.

QErrorMessage.showMessage (self, QString message, QString type)

This method is also a Qt slot with the C++ signature void showMessage(const QString&,const QString&).

This is an overloaded function.

See also showMessage().