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50#include <QDir>
51#include <QGuiApplication>
52#include <QQmlEngine>
53#include <QQmlFileSelector>
54#include <QQuickView> //Not using QQmlApplicationEngine because many examples don't have a Window{}
55#define DECLARATIVE_EXAMPLE_MAIN(NAME) int main(int argc, char* argv[]) \
56{\
57 QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);\
58 QGuiApplication app(argc,argv);\
59 app.setOrganizationName("QtProject");\
60 app.setOrganizationDomain("qt-project.org");\
61 app.setApplicationName(QFileInfo(app.applicationFilePath()).baseName());\
62 QQuickView view;\
63 if (qgetenv("QT_QUICK_CORE_PROFILE").toInt()) {\
64 QSurfaceFormat f = view.format();\
65 f.setProfile(QSurfaceFormat::CoreProfile);\
66 f.setVersion(4, 4);\
67 view.setFormat(f);\
68 }\
69 if (qgetenv("QT_QUICK_MULTISAMPLE").toInt()) {\
70 QSurfaceFormat f = view.format();\
71 f.setSamples(4);\
72 view.setFormat(f);\
73 }\
74 view.connect(view.engine(), &QQmlEngine::quit, &app, &QCoreApplication::quit);\
75 new QQmlFileSelector(view.engine(), &view);\
76 view.setSource(QUrl("qrc:///" #NAME ".qml")); \
77 if (view.status() == QQuickView::Error)\
78 return -1;\
79 view.setResizeMode(QQuickView::SizeRootObjectToView);\
80 view.show();\
81 return app.exec();\
82}
83

source code of qtdeclarative/examples/quick/shared/shared.h