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-rw-r--r--doc/gpgme.texi12
1 files changed, 10 insertions, 2 deletions
diff --git a/doc/gpgme.texi b/doc/gpgme.texi
index 330b167e..3975a971 100644
--- a/doc/gpgme.texi
+++ b/doc/gpgme.texi
@@ -6180,8 +6180,16 @@ This is an extended version of @code{gpgme_op_encrypt} with
@var{recpstring} is not NULL, the latter is expected to be a linefeed
delimited string with the set of key specifications. In contrast to
@var{recp} the keys are given directly as strings and there is no need
-to first create key objects. The keys are passed verbatim to the
-backend engine.
+to first create key objects. Leading and trailing white space is
+remove from each line in @var{recpstring}. The keys are then passed
+verbatim to the backend engine.
+
+For the OpenPGP backend two special keywords are supported to modify
+the operation: If the keyword "--hidden" is given as a recipient, it
+is skipped but will trun all following key specifications to be hidden
+recipients. If the keyword "--" is given as a recipient, it will be
+skipped but no keywords will be detected in all following key
+specifications.
@end deftypefun