Revision control
++ TEMPLATE = app
++ TARGET = notepad
++
++ QT += widgets
++
++ qtHaveModule(printsupport): QT += printsupport
++ requires(qtConfig(fontdialog))
++
++ SOURCES += \
++ main.cpp\
++ notepad.cpp
++
++ HEADERS += notepad.h
++
++ FORMS += notepad.ui
++
++ RESOURCES += \
++ notepad.qrc
++
++ # install
++ target.path = $$[QT_INSTALL_EXAMPLES]/widgets/tutorials/notepad
++ INSTALLS += target
++