Border color of Qt components

Question

I want to change border color of QFrame component. Also tried with style sheet but no effect at run time. In my project there are various Dialog UI are there which are basically QFrame and i want to change the border color of selected dialog i.e. QFrame border color. Is there any workaround for that in QT. As shown below there are two dialog when any one of selected it's respective frame border color should get changed

Answer 1

Try this:

frame->setObjectName("myObject");
frame->setStyleSheet("#myObject { border: 5px solid black; }");