diff --git a/sane/s2t_api.h b/sane/s2t_api.h
index c304b07..9aae19d 100644
--- a/sane/s2t_api.h
+++ b/sane/s2t_api.h
@@ -245,6 +245,7 @@ struct __declspec(novtable) ISaneInvoker : public IRef
 	SANE_OPTION_ID_API(search_hole_range_t);		// 穿孔搜索范围 - 上
 	SANE_OPTION_ID_API(is_erase_hole_b);			// 穿孔移除 - 下
 	SANE_OPTION_ID_API(search_hole_range_b);		// 穿孔搜索范围 - 下
+	SANE_OPTION_ID_API(fold_direction);				// 对折模式
 
 	// SANE-ex option ID:
 	SANE_OPTION_ID_API_EX(multiout_type);			// int
diff --git a/sane/scanner.cpp b/sane/scanner.cpp
index 8479e52..d3c4534 100644
--- a/sane/scanner.cpp
+++ b/sane/scanner.cpp
@@ -877,6 +877,7 @@ int scanner::init_options_id(void)
 		else SET_OPT_ID(search_hole_range_t, SEARCH_HOLE_RANGE_T, extension_none)
 		else SET_OPT_ID(is_erase_hole_b, RID_HOLE_B, extension_none)
 		else SET_OPT_ID(search_hole_range_b, SEARCH_HOLE_RANGE_B, extension_none)
+		else SET_OPT_ID(fold_direction, FOLD_TYPE, extension_none)
 		op_id++;
 	}
 
@@ -2560,6 +2561,7 @@ SANE_OPTION_ID_IMPLEMENT(is_erase_hole_t)
 SANE_OPTION_ID_IMPLEMENT(search_hole_range_t)
 SANE_OPTION_ID_IMPLEMENT(is_erase_hole_b)
 SANE_OPTION_ID_IMPLEMENT(search_hole_range_b)
+SANE_OPTION_ID_IMPLEMENT(fold_direction)
 
 // SANE-ex option ID:
 SANE_OPTION_ID_IMPLEMENT(ex_multiout_type)
diff --git a/sane/scanner.h b/sane/scanner.h
index 092bc57..4262370 100644
--- a/sane/scanner.h
+++ b/sane/scanner.h
@@ -292,6 +292,7 @@ public:
 	SANE_OPTION_ID(search_hole_range_t);		// 穿孔搜索范围 - 上
 	SANE_OPTION_ID(is_erase_hole_b);			// 穿孔移除 - 下
 	SANE_OPTION_ID(search_hole_range_b);		// 穿孔搜索范围 - 下
+	SANE_OPTION_ID(fold_direction);				// 对折模式
 
 	// SANE-ex option ID:
 	SANE_OPTION_ID(ex_multiout_type);			// int
diff --git a/twain/twain/huagaods.cpp b/twain/twain/huagaods.cpp
index 022ac2e..7f7962c 100644
--- a/twain/twain/huagaods.cpp
+++ b/twain/twain/huagaods.cpp
@@ -138,7 +138,9 @@ enum CapTypeEx : unsigned short {
 	CAP_EX_SANE_is_erase_hole_t,
 	CAP_EX_SANE_search_hole_range_t,
 	CAP_EX_SANE_is_erase_hole_b,
-	CAP_EX_SANE_search_hole_range_b,	// END for SANE�豸��ԭʼ������͸������
+	CAP_EX_SANE_search_hole_range_b,
+	CAP_EX_SANE_fold_direction,
+	// END for SANE�豸��ԭʼ������͸������
 	/////////////////////////////////////////////////////////////////////////
 };
 enum // .twain/first.cfg: [twain-app] flow=0
@@ -2842,6 +2844,7 @@ void huagao_ds::init_support_caps_ex(void)
 	ADD_SANE_CAP(search_hole_range_t);		// ����������Χ - ��
 	ADD_SANE_CAP(is_erase_hole_b);			// �����Ƴ� - ��
 	ADD_SANE_CAP(search_hole_range_b);		// ����������Χ - ��
+	ADD_SANE_CAP(fold_direction);			// ���۷���
 }
 std::wstring huagao_ds::get_config_file(void)
 {