QPushButton setText problem

[batileon]

I am having a Q3ButtonGroup with some QPushButton.

I want to update the text of the button when it is being clicked.
Hence I used setText() to perform what I want.
However I found that the setText() doesn't update the ui.
I mean, when I use text() to cout the text of the button, I found that the new text is actually already be set, but in the user interface, I found that it doesn't update at all!!!!
I tried to call all those thing like update()/repaint() after calling the setText but it still doesn't work.

Can anyone tell me what's going on?
Thanks!

[drhex]

Calling setText on a QPushButton should update the text onscreen with no need to call repaint/update

Could you make a minimal compilable example program that has the problem and post it here?

[jpn]

Perhaps you block the event loop with a busy loop. As long as your function is executing, Qt has no chance to update the buttons.

[batileon]

Thanks!
Seems it is really related to the event loop. By adding

QApplication::processEvents();

QApplication::processEvents();

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I solved the problem.