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-rw-r--r--examples/pdfwidgets/pdfviewer/mainwindow.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/examples/pdfwidgets/pdfviewer/mainwindow.h b/examples/pdfwidgets/pdfviewer/mainwindow.h
index 40062a31d..f29205840 100644
--- a/examples/pdfwidgets/pdfviewer/mainwindow.h
+++ b/examples/pdfwidgets/pdfviewer/mainwindow.h
@@ -42,12 +42,15 @@
Q_DECLARE_LOGGING_CATEGORY(lcExample)
+QT_BEGIN_NAMESPACE
namespace Ui {
class MainWindow;
}
class QLineEdit;
class QPdfDocument;
+QT_END_NAMESPACE
+
class SequentialPageWidget;
class MainWindow : public QMainWindow