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API > API/Plugins > API/Plugins/PCGEditor > API/Plugins/PCGEditor/IPCGDeltaViewportExtension
Description
Alt+drag handler. Usually used to create/insert new elements. Returns the new element index, or INDEX_NONE.
| Name | OnAltDrag |
| Type | function |
| Header File | /Engine/Plugins/PCG/Source/PCGEditor/Public/DeltaViewportExtensions/PCGDeltaViewportExtension.h |
| Include Path | #include "DeltaViewportExtensions/PCGDeltaViewportExtension.h" |
virtual int32 OnAltDrag
(
FPCGDeltaCollection & Collection,
const FTransform & SourceTransform,
FPCGDeltaKey & OutDeltaKey
) const