@Tobias
I am able to open the "file" using Core::EditorManager and Core::IEditor
The problem is how do i read and write into the file, specifically, "line by line". Unfortunately, Ctrl-K doesn't direct me to EditorManager class so i used this "link":http://doc.qt.digia.com/qtcreator-extending/core-editormanager.html as a reference.
My target is reading and writing line by line and append some "code" if the keyword I am looking for doesn't exist. If the keyword exists, delete or modify it. Sorry but there is very less entry/guide in the documentation. So I would be grateful for some help.
Thanks