ChangeHistoryServiceクラス
ひとことで言うと
ChangeHistoryServiceは、ロブロックス（Roblox）のクラスです。くわしい日本語解説は準備中のため、下に公式の説明（英語）を載せています。
公式の説明（英語）：**Must** be used by plugins to communicate to Studio how to undo and redo the changes which they make to the experience.
クラスの関係
メソッド（10）
| 名前と書き方 | 説明 |
|---|---|
FinishRecordingChangeHistoryService:FinishRecording(identifier: string, operation: FinishRecordingOperation, finalOptions: Dictionary?): () | Communicates to Studio that the identified recording is finished and to take the final operation to complete the recording. |
GetCanRedoChangeHistoryService:GetCanRedo(): Tuple | Returns whether there is an action available to redo and, if so, the name of that action. |
GetCanUndoChangeHistoryService:GetCanUndo(): Tuple | Returns whether there is an action available to undo and, if so, the name of that action. |
IsRecordingInProgressChangeHistoryService:IsRecordingInProgress(identifier: string?): boolean | Returns whether the plugin currently has a recording in progress, optionally checking for a specific recording identifier. |
RedoChangeHistoryService:Redo(): () | Re-executes the most recently undone action, advancing forward through the undo/redo history. |
ResetWaypointsChangeHistoryService:ResetWaypoints(): () | Clears the undo/redo history by collapsing it into a single base waypoint. |
SetEnabledChangeHistoryService:SetEnabled(state: boolean): () | Sets whether or not the ChangeHistoryService is enabled. |
SetWaypointChangeHistoryService:SetWaypoint(name: string): () | Sets a new waypoint which can be used as an undo or redo point. |
TryBeginRecordingChangeHistoryService:TryBeginRecording(name: string, displayName: string?): string? | Begins tracking changes made to the data model into a recording. |
UndoChangeHistoryService:Undo(): () | Reverts the most recent action, stepping backward through the undo/redo history. |
イベント（4）
| 名前と書き方 | 説明 |
|---|---|
OnRecordingFinishedChangeHistoryService.OnRecordingFinished(name: string, displayName: string?, identifier: string?, operation: FinishRecordingOperation, finalOptions: Dictionary?) | Fired when the user completes an action. Parameters come from Class.ChangeHistoryService:TryBeginRecording()|TryBeginRecording() and Class.ChangeHistoryService:FinishRecording()|FinishRecording(). |
OnRecordingStartedChangeHistoryService.OnRecordingStarted(name: string, displayName: string?) | Fired when the user begins an action. Parameters come from Class.ChangeHistoryService:TryBeginRecording()|TryBeginRecording(). |
OnRedoChangeHistoryService.OnRedo(waypoint: string) | Fires after an action is redone, reporting the name of the action that was replayed. |
OnUndoChangeHistoryService.OnUndo(waypoint: string) | Fires after an action is undone, reporting the name of the action that was reverted. |
受け継いでいるメンバー
Instance から受け継いでいるもの（46）
Archivable・Capabilities・IsInSandbox・Name・Parent・PredictionMode・Sandboxed・AddTag・ClearAllChildren・Clone・Destroy・FindFirstAncestor・FindFirstAncestorOfClass・FindFirstAncestorWhichIsA・FindFirstChild・FindFirstChildOfClass・FindFirstChildWhichIsA・FindFirstDescendant・GetActor・GetAttribute・GetAttributeChangedSignal・GetAttributes・GetChildren・GetDebugId・GetDescendants・GetFullName・GetStyled・GetStyledPropertyChangedSignal・GetTags・HasTag・IsAncestorOf・IsDescendantOf・IsPropertyModified・QueryDescendants・RemoveTag・ResetPropertyToDefault・SetAttribute・WaitForChild・AncestryChanged・AttributeChanged・ChildAdded・ChildRemoved・DescendantAdded・DescendantRemoving・Destroying・StyledPropertiesChanged
Object から受け継いでいるもの（4）
英語の説明とメンバーの一覧は、Roblox Creator Documentation（ChangeHistoryService）をもとにしています（CC BY 4.0）。日本語の解説は、このサイトで独自に書いたものです。