UndoBufferSize

UndoBufferSize

#Overview

name: UndoBufferSize

The value of this variable can be defined or overridden in .ini config files. 1 .ini config file referencing this setting variable.

It is referenced in 1 C++ source file.

#Summary

#Setting Variables

#References In INI files

Location: <Workspace>/Engine/Config/BaseEditorPerProjectUserSettings.ini:471, section: [Undo]

#References in C++ code

#Callsites

This variable is referenced in the following C++ source code:

#Loc: <Workspace>/Engine/Source/Editor/UnrealEd/Private/EditorServer.cpp:1239

Scope (from outer to inner):

file
function     UTransactor* UEditorEngine::CreateTrans

Source code excerpt:

	CurrentUndoRedoContext = MakePimpl<FEditorTransactionDeltaContext>();

	int32 UndoBufferSize;

	if (!GConfig->GetInt(TEXT("Undo"), TEXT("UndoBufferSize"), UndoBufferSize, GEditorPerProjectIni))
	{
		UndoBufferSize = 16;
	}

	UE_LOG(LogInit, Log, TEXT("Undo buffer set to %d MB"), UndoBufferSize);

	UTransBuffer* TransBuffer = NewObject<UTransBuffer>();
	TransBuffer->Initialize((SIZE_T)UndoBufferSize * 1024 * 1024);
	TransBuffer->OnBeforeRedoUndo().AddUObject(this, &UEditorEngine::HandleTransactorBeforeRedoUndo);
	TransBuffer->OnRedo().AddUObject(this, &UEditorEngine::HandleTransactorRedo);
	TransBuffer->OnUndo().AddUObject(this, &UEditorEngine::HandleTransactorUndo);

	return TransBuffer;
}