EditorUtility.IsDirty

public static bool IsDirty (int instanceID);

public static bool IsDirty (Object target);

Parameters

instanceID	The object's instance ID.
target	The object.

Returns

bool True if the object has changed; otherwise false.

Description

Gets a boolean value that indicates whether the specified object has changed since the last time it was saved.

See Also: GetDirtyCount, SetDirty.