breve documentacion de ayuda sobre los errores

LectorVerdnatura/sdklector.cs

@@ -139,6 +139,32 @@ namespace LectorVerdnatura
                     {
                         clector.GetLastError(ref idwErrorCode);
                         if (idwErrorCode != 0)
+/*
+Obtenido de: www.digitalfarsi.com/files/22112014163844.pdf
+
+2.61 GetLastError
+
+[Function]
+    Get last error number.
+[Protocol]
+   BOOL GetLastError(long FAR* dwErrorCode);
+[Paramters]
+  dwErrorCode:  The returned error number
+  Value Description
+   1 SUCCESSED
+   4 ERR_INVALID_PARAM
+   0 ERR_NO_DATA
+  -1 ERROR_NOT_INIT
+  -2 ERROR_IO
+  -3 ERROR_SIZE
+  -4 ERROR_NO_SPACE
+  -100 ERROR_UNSUPPORT
+[Return]
+	TRUE if success, FALSE else.
+[Notes]
+	dwErrorCode = 6 caused by calling Method GetGeneralLogData, and GetAllGLogData.
+	If them return FALSE, please call GetLastError to determine if there is error or read over data.
+*/
                             logevent.logeventwritefile("ErrorCode: " + idwErrorCode.ToString());
                             retorno = false;
                         else