From 96817270e8bf139f14703710ff6e94a854ed9fb6 Mon Sep 17 00:00:00 2001
From: gb <741021719@qq.com>
Date: Tue, 2 Aug 2022 17:32:22 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E6=8E=A5=E5=8F=A3=EF=BC=9Asa?=
 =?UTF-8?q?ne=5Ferr=5Fdesc?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 hgsane/main.c          | 5 +++++
 hgsane/sane_hg_mdw.cpp | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/hgsane/main.c b/hgsane/main.c
index d4c2652..5314851 100644
--- a/hgsane/main.c
+++ b/hgsane/main.c
@@ -23,6 +23,7 @@ extern SANE_String_Const inner_sane_strstatus(SANE_Status status);
 
 extern SANE_Status inner_sane_init_ex(SANE_Int* version_code, sane_callback cb, void* param);
 extern SANE_Status inner_sane_io_control(SANE_Handle h, unsigned long code, void* data, unsigned* len);
+extern const char* inner_sane_err_desc(SANE_Status err);
 
 /// <summary>
 /// 导出接口
@@ -95,3 +96,7 @@ SANE_Status sane_io_control(SANE_Handle h, unsigned long code, void* data, unsig
 {
 	return inner_sane_io_control(h, code, data, len);
 }
+const char* sane_err_desc(SANE_Status err)
+{
+	return inner_sane_err_desc(err);
+}
diff --git a/hgsane/sane_hg_mdw.cpp b/hgsane/sane_hg_mdw.cpp
index 7629cce..4613713 100644
--- a/hgsane/sane_hg_mdw.cpp
+++ b/hgsane/sane_hg_mdw.cpp
@@ -2010,6 +2010,10 @@ extern "C" {	// avoid compiler exporting name in C++ style !!!
 	{
 		return hg_sane_middleware::instance()->io_control(h, code, data, len);
 	}
+	const char* inner_sane_err_desc(SANE_Status err)
+	{
+		return hg_scanner_err_description(local_utility::sane_statu_2_scanner_err(err));
+	}
 
 	void sanei_debug_msg(int level, int max_level, const char* be, const char* fmt, va_list ap)
 	{