regarding QApplication::focusWidget ()

[sar_van81]

hi...

can anyone say me what value will the following function return:

QApplication::focusWidget () .

or else how is it used...?

[munna]

From the docs

Returns the application widget that has the keyboard input focus, or 0 if no widget in this application has the focus.

Lets say you have an application which has 4 Input Boxes and you need to access the input box that currently has focus. You can use the above function for it.

I know it's a very bad example, but you get the idea, rite?

[sar_van81]

suppose if we have input boxes in some other application. can we use this function....?

[munna]

No you cannot.

[sar_van81]

will the following function work as it says "Returns the application widget that has the keyboard input focus, or 0 if no widget in this application has the focus":
QApplication::focusWidget ()

[wysota]

It means it will return a widget from YOUR application, not from ANY application. The last part of the sentence quoted suggests that as well.