@Avec Oh duh.. I should have thought of that as a potential reason. I just assumed that you were in the directory with the files as your current dir.

Glad it's all solved. :)

Thanks a lot. :) @raven-worx @giupigna. Problem solved.

@beginMyCoding found the solution for

one last question: if QStringList images has 10 fileNames, is it possible to access a particular fileName such as images(5) or images(9)? i am able to access the first and last fileName with images.first() or images.last() but not the ones which are in between.

But waiting for the solution to set maximum of horizontalslider

@Ratzz
Did you use a relative path. And I've solved another way thanks

Hi,

From a quick look at the setting up page, are you including the sources of QCustomPlot in your project ?

@SGaist Thank you once again!
Now, I can manage to display the folder list inside the stacked widget page using QTreeView + QFileSystemModel combo!