how to transfer data from one interface to another

[milhao]

How do I transfer data from one interface to another, for example: from interface A to interface B, the name and race that are entered from interface A must appear on interface B.
how do i do it?

[JonB]

@milhao
What is an "interface"? Your questions are often very vague! :)

[milhao]

@JonB a form that qt-creator creates

[jsulm]

@milhao Still not clear what you mean.
If you are asking how to access your UI then you do it like this:

QString text = ui->textEdit->toPlainText();

So, you access the widgets via ui->
If this is not what you are asking then please explain better.

[DaShubWubDub]

Set layout to widget that is showing.
Then add qlinedit to the layout using add widget