SetSignProcessFieldLock

Security and Signatures

Description

Configures the signature field /Lock dictionary and a matching FieldMDP transform for a digital signature process

The field lock is written when the signature is completed and can lock every field, a named include set, or every field except a named exclude set

Function TPDFlib.SetSignProcessFieldLock(SignProcessID, Action: Integer;
  Const FieldNames: WideString): Integer;

SignProcessID	Value returned by one of the `NewSignProcessFrom*` functions
Action	`0` clears the lock, `1` selects `All`, `2` selects `Include`, and `3` selects `Exclude`
FieldNames	Semicolon-separated fully qualified field names required for `Include` and `Exclude`, ignored for `All`

0	The process, action, or field-name list is invalid and the previous valid lock configuration remains unchanged
1	The lock configuration was accepted

Empty list elements are rejected so Order.Customer;;Order.Total does not silently create a partial lock

Use TPDFlibSignatureVerifier.GetSignaturePermissionInfo* to inspect the emitted /Lock and FieldMDP structures