How to use CAknFloatingPointQueryDialog?

[forum_jpa]

I try to use CAknFloatingPointQueryDialog, but didn't work right ({rAmount} is always 0.0). I think there is some problem in resource-file, but i don't what kind of resource definition i have to make for CAknFloatingPointQueryDialog-class.

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TReal rAmount;

CAknFloatingPointQueryDialog* dlgamount = CAknFloatingPointQueryDialog::NewL(rAmount, CAknQueryDialog::ENoTone);

if (dlgamount->ExecuteLD(R_ASK_AMOUNT))
{
iStrBuffer.Format(_L("Amount is : %g"), rAmount);
iEikonEnv->InfoMsg(iStrBuffer);
}

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Resource is :

RESOURCE DIALOG r_ask_amount
{
title = "example";
buttons = R_AVKON_SOFTKEYS_OK_CANCEL;
flags = EGeneralQueryFlags;
items =
{
DLG_LINE
{
type = EAknCtQuery;
id = EHelloWorld2DialogAddNewEventQuery;
control = AVKON_DATA_QUERY
{
layout = EDataLayout;
label = "Amount";
control = EDWIN
{
};
};
}
};
}

---8<------------------------------

[Paul.Todd]

Look at the sample in the Avvkon Dialogs tech note. Your layout is wrong

http://www.forum.nokia.com/info/sw.n..._0_en.pdf.html

[forum_jpa]

Thanks Paul. Now it's works.