http://bugzilla.novell.com/show_bug.cgi?id=985557 http://bugzilla.novell.com/show_bug.cgi?id=985557#c1 --- Comment #1 from Walther Pelser --- "-qwindowtitle, sets the title of the first window." Taken from http://doc.qt.io/qt-5/qguiapplication.html Seems, that it sets the title ONLY of the first window. I found something like this->setWindowTitle("New Title"); But qt is not my favored language, in fact I can't. -- You are receiving this mail because: You are on the CC list for the bug.