How to add QTextEdit to QWizard

[slava]

Hello,
I would like to get some kind of hint as to how handle QWizard object in the programming. I had a need to use QTextEdit in a QWizardPage but QTextEdit is not supported by default there, only QLineEdit etc. The manual says I can add QTextEdit by, for example:

ClassWizard::ClassWizard(QWidget *parent) 
: QWizard(parent) 
setDefaultProperty("QTextEdit", "toPlainText", "textChanged")
.....

ClassWizard::ClassWizard(QWidget *parent) 
: QWizard(parent) 
setDefaultProperty("QTextEdit", "toPlainText", "textChanged")
.....

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but that doesn't help and the

registerField("text", textEdit)

registerField("text", textEdit)

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still shows empty on

QMessageBox (.....field("text").toString())

QMessageBox (.....field("text").toString())

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while the textBox is filled.
-
I have tryied:

QVariant txt = textEdit->toPlainText(); 
setField("text", txt);

QVariant txt = textEdit->toPlainText(); 
setField("text", txt);

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but that still doesn not work and the field "text" stil empty.
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Could you help me to find out how do I go about this to be able to use QTextEdit in QWizard pages?