From 76163715bb886eebe0c4c0143a121413ce5bf954 Mon Sep 17 00:00:00 2001
From: Eveldee <eveldee0680@live.fr>
Date: Mon, 30 Nov 2020 09:39:50 +0100
Subject: [PATCH] Add TryQueryPermission command

---
 .../FingerprintSensor.cs                      | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/WaveshareUARTFingerprintSensor/FingerprintSensor.cs b/WaveshareUARTFingerprintSensor/FingerprintSensor.cs
index 16983ac..f5192c7 100644
--- a/WaveshareUARTFingerprintSensor/FingerprintSensor.cs
+++ b/WaveshareUARTFingerprintSensor/FingerprintSensor.cs
@@ -359,6 +359,25 @@ namespace WaveshareUARTFingerprintSensor
             return false;
         }
 
+        public bool TryQueryPermission(ushort userID, out UserPermission userPermission)
+        {
+            (byte high, byte low) = Utils.Split(userID);
+
+            if (TrySendAndReceive(CommandType.QueryPermission, high, low, 0, out var reponse, 1000))
+            {
+                if (reponse.responseType != ResponseType.NoUser)
+                {
+                    userPermission = (UserPermission)reponse.responseType;
+
+                    return true;
+                }
+            }
+
+            userPermission = default;
+
+            return true;
+        }
+
         public void Sleep()
         {
             _sleeping = true;