QGIS API Documentation 3.40.0-Bratislava (b56115d8743)
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A set of expression-related functions. More...
#include <qgsexpressionutils.h>
Static Public Member Functions | |
static std::tuple< QMetaType::Type, int > | determineResultType (const QString &expression, const QgsVectorLayer *layer, QgsFeatureRequest request=QgsFeatureRequest(), QgsExpressionContext context=QgsExpressionContext(), bool *foundFeatures=nullptr) |
Returns a value type and user type for a given expression. | |
A set of expression-related functions.
Definition at line 52 of file qgsexpressionutils.h.
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Returns a value type and user type for a given expression.
expression | An expression string. |
layer | A vector layer from which the expression will be executed against. |
request | A feature request object. |
context | An expression context object. |
foundFeatures | An optional boolean parameter that will be set when features are found. |
Definition at line 353 of file qgsexpressionutils.cpp.