Vertical slider again

[SGaist]

What exactly do you want to do with z ?

What is your goals ?

That would help us understand what you are trying to achieve.

[Payx]

I have a slider who determine the value of "z"

i thought use a setrange for the slider (1 to 50)

Like if the vertical slider is at the bottom, the value of z will be 1
and if the slider is at the top the value of z will be 50

[SGaist]

Call setRange in your MainWindow constructor.

[Payx]

Call SetRange ? i don't undertsand

[SGaist]

That line: ui->verticalSlider->setRange(1,50); you should call it in the MainWindow constructor.

And since you are using a Designer based interface you can also set the min and max values in Designer and avoid the setRange call.

[Payx]

So the z=position;
i keep it ?

Sorry but even the "main constructor" it's the .cpp ? or .h ?

[SGaist]

Well... Yes if you use it somewhere else.

[Payx]

Yes i use the z somewhere else

thats why i needed a range 1 - 50

[SGaist]

Where exactly ? Depending on that, there's not even a need for z. You can get the value directly from the slider.

[Payx]

It depends where i use my "z" ?

How ?

[Payx]

thank's anyway,

3 h on it, i had time to ask help

[ambershark]

@Payx said in Vertical slider again:

It depends where i use my "z" ?

How ?

What do you use z for? Also side note, that's a horrible name for a variable locally much less one that is used at a class or global level.

What @SGaist is saying is you can always get the value of the slider from the slider itself without saving it to a variable. The function ui->verticalSlider->sliderPosition() will always contain the same value that your z would.

So with that in mind you can get rid of that whole overridden function and just call sliderPosition() when you need the value.