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-rw-r--r--public/fpdfview.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/public/fpdfview.h b/public/fpdfview.h
index 3f180335d3..370b84ed0f 100644
--- a/public/fpdfview.h
+++ b/public/fpdfview.h
@@ -1012,7 +1012,8 @@ FPDF_VIEWERREF_GetDuplex(FPDF_DOCUMENT document);
// be of type "name".
// Parameters:
// document - Handle to the loaded document.
-// key - Name of the key in the viewer pref dictionary.
+// key - Name of the key in the viewer pref dictionary,
+// encoded in UTF-8.
// buffer - A string to write the contents of the key to.
// length - Length of the buffer.
// Return value: