QT problem

stu12345 · 07-28-2003, 08:13 AM

does anyone know how can i update a QLineEdit
while in a loop ?
it appears that the QLineEdit updates only after i have exited the SLOT (loop) generated by a Start SIGNAL.

thanks.

Tinkster · 07-28-2003, 04:21 PM

Not quite sure whether I understand
the question ...

You might need to write a new keyboard
event handler that updates the elements
on each keystroke?

Cheers,
Tink

epicurus · 07-28-2003, 05:41 PM

stu12345: are you just using setText()? It's probably because the slot/signal stuff happens to execute in the main thread, which I assume your code is in.. none of the gui will update until your code is done. (Unless Qt has some function to force the GUI to update itself, which I would assume it does, though I don't know it..) Alternatively, you could put the code in a seperate thread.

edit: Have you tried just calling update() on the object?

edit, duble: Failing that, try calling repaint() on it... that is, it's repaint() method.

stu12345 · 07-29-2003, 11:02 AM

thanks ill try repaint()

epicurus · 07-29-2003, 02:33 PM

Quote:

Originally posted by stu12345
thanks ill try repaint()

Lemme know if it works.

stu12345 · 07-31-2003, 09:31 AM

it didn't work !
i have in my program a QGLWidget which is updating !!
but the QLineEdit which is a public member of it, does not !?

stu12345 · 07-31-2003, 10:16 AM

well, i'v finally done it
it took 2 code lines !!
first clear() the line.
then insert() in the line ?!

now can anyone tell me what the hell is the difference from setText() ???????