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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
//! [0]
QCoreApplication* createApplication(int &argc, char *argv[])
{
for (int i = 1; i < argc; ++i) {
if (!qstrcmp(argv[i], "-no-gui"))
return new QCoreApplication(argc, argv);
}
return new QApplication(argc, argv);
}
int main(int argc, char* argv[])
{
QScopedPointer<QCoreApplication> app(createApplication(argc, argv));
if (qobject_cast<QApplication *>(app.data())) {
// start GUI version...
} else {
// start non-GUI version...
}
return app->exec();
}
//! [0]
//! [1]
QApplication::setStyle(QStyleFactory::create("Fusion"));
//! [1]
//! [4]
void showAllHiddenTopLevelWidgets()
{
const QWidgetList topLevelWidgets = QApplication::topLevelWidgets();
for (QWidget *widget : topLevelWidgets) {
if (widget->isHidden())
widget->show();
}
}
//! [4]
//! [5]
void updateAllWidgets()
{
const QWidgetList allWidgets = QApplication::allWidgets();
for (QWidget *widget : allWidgets)
widget->update();
}
//! [5]
//! [7]
if ((startPos - currentPos).manhattanLength() >=
QApplication::startDragDistance())
startTheDrag();
//! [7]
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