undo.pro Example Filetools/undo/undo.proSOURCES += main.cpp mainwindow.cpp commands.cpp document.cpp HEADERS += mainwindow.h commands.h document.h FORMS += mainwindow.ui build_all:!build_pass { CONFIG -= build_all CONFIG += release } RESOURCES += undo.qrc # install target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/tools/undo sources.files = $$SOURCES $$HEADERS *.pro icons $$RESOURCES $$FORMS sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/tools/undo INSTALLS += target sources QT += widgets |