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> Unreal Engine API Reference > Editor > UnrealEd > Editor > FTransaction > OperationId

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OperationId

Unique identifier for the active operation on this transaction (if any).

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Syntax

FGuid OperationId

Remarks

Unique identifier for the active operation on this transaction (if any). This is set by a call to BeginOperation and cleared by a call to EndOperation. BeginOperation should be called when a transaction or undo/redo starts, and EndOperation should be called when a transaction is finalized or canceled or undo/redo ends.

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