| QGIS API Documentation
    3.20.0-Odense (decaadbb31)
    | 
#include <QColor>#include <QComboBox>#include <QToolButton>#include <QWidget>#include <memory>#include "qgis_gui.h"#include "qgis_sip.h"#include "qgsdistancearea.h"#include "qgsexpressioncontext.h"#include "qgsfieldproxymodel.h"

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| Classes | |
| class | QgsFieldExpressionWidget | 
| The QgsFieldExpressionWidget class reates a widget to choose fields and edit expressions It contains a combo box to display the fields and expression and a button to open the expression dialog.  More... | |