[Qt-interest] Setting a label's value from a slider automatically on launch

[Pritam Ghanghas]

On Wed, 2011-08-24 at 21:56 +0530, David Doria wrote:
> I have a slider and a label on my QMainWindow. In QtDesigner, I've
> created a signal/slot pair so that the slider's value is displayed in
> the label. When I run the program and slide the slider, the label is
> updated appropriately. However, the label does not take the correct
> value until the slider is moved for the first time. Is there a way to
> automatically make the label take the slider's value as soon as the
> program is started (before the slider is moved)?

You will have to give the label proper initial value. You have many
choices
You can specify the default values for both to be same from designer's
property editor.

Or 

After setupUI() either call slider.setValue (that will result in
valuechanged signal if you set some value different from default) 
or better query it using slider.value and set on label. 

> 
> Thanks,
> 
> David
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