| QGIS API Documentation
    3.18.1-Zürich (202f1bf7e5)
    | 
#include "qgscoordinateoperationwidget.h"#include "qgscoordinatetransform.h"#include "qgsprojectionselectiondialog.h"#include "qgslogger.h"#include "qgssettings.h"#include "qgsproject.h"#include "qgsguiutils.h"#include "qgsgui.h"#include "qgshelp.h"#include "qgsinstallgridshiftdialog.h"#include <QDir>#include <QPushButton>#include <QRegularExpression>