--- a/OrthancFramework/Sources/Lua/LuaFunctionCall.cpp	Mon Aug 30 22:21:24 2021 +0200
+++ b/OrthancFramework/Sources/Lua/LuaFunctionCall.cpp	Thu Nov 25 13:12:32 2021 +0100
@@ -146,6 +146,20 @@
     }
   }
 
+  void LuaFunctionCall::ExecuteToInt(int& result)
+  {
+    ExecuteInternal(1);
+    
+    int top = lua_gettop(context_.lua_);
+    if (lua_isnumber(context_.lua_, top))
+    {
+      result = static_cast<int>(lua_tointeger(context_.lua_, top));
+    }
+    else
+    {
+      throw OrthancException(ErrorCode_LuaReturnsNoString);
+    }
+  }
 
   void LuaFunctionCall::PushStringMap(const std::map<std::string, std::string>& value)
   {