QT += core gui greaterThan(QT_MAJOR_VERSION, 4): QT += widgets TARGET = myMdi TEMPLATE = app SOURCES += main.cpp\ mainwindow.cpp \ mdichild.cpp HEADERS += mainwindow.h \ mdichild.h FORMS += mainwindow.ui RESOURCES += \ myImage.qrc RC_ICONS = app.ico RC_FILE = myapp.rc