THotPDF.BeginGraphTransaction Method
Starts a copy-on-write savepoint for the loaded indirect-object graph
Déclaration
procedure BeginGraphTransaction(const Name: AnsiString= '');Unité
HPDFDoc
Paramètres
| Nom | Objectif |
|---|---|
Name | Optional diagnostic name for the savepoint |
Valeur de retour
Cette procédure ne renvoie pas de valeur
Notes d'utilisation
- Starting a transaction indexes current indirect roots but does not copy them
- The first mutation of each indirect root creates one snapshot for the current savepoint
- Transactions may be nested and must be closed in last-in, first-out order