diff --git a/build/windows/HGScannerLib/HGScannerLib.def b/build/windows/HGScannerLib/HGScannerLib.def
index 7cf89645..ffe40ebe 100644
--- a/build/windows/HGScannerLib/HGScannerLib.def
+++ b/build/windows/HGScannerLib/HGScannerLib.def
@@ -27,4 +27,5 @@ HGLib_DeviceRestart
 HGLib_DeviceShutDown
 HGLib_StartDeviceScan
 HGLib_StopDeviceScan
-HGLib_StopDeviceScanAsyn
\ No newline at end of file
+HGLib_StopDeviceScanAsyn
+HGLib_GetDeviceOperateCode
\ No newline at end of file
diff --git a/doc/scannerlib/新版SDK接口说明.doc b/doc/scannerlib/新版SDK接口说明.doc
index 5046f9d9..2c8f6f7f 100644
Binary files a/doc/scannerlib/新版SDK接口说明.doc and b/doc/scannerlib/新版SDK接口说明.doc differ
diff --git a/doc/scannerlib/新版SDK接口说明.pdf b/doc/scannerlib/新版SDK接口说明.pdf
index ab04f832..54eb1862 100644
Binary files a/doc/scannerlib/新版SDK接口说明.pdf and b/doc/scannerlib/新版SDK接口说明.pdf differ
diff --git a/sdk/scannerlib/HGLibDeviceImpl.cpp b/sdk/scannerlib/HGLibDeviceImpl.cpp
index e3a24a9c..0e0f9978 100644
--- a/sdk/scannerlib/HGLibDeviceImpl.cpp
+++ b/sdk/scannerlib/HGLibDeviceImpl.cpp
@@ -227,6 +227,7 @@ HGLibDeviceImpl::HGLibDeviceImpl()
 	m_eventParam = NULL;
 	m_imageFunc = NULL;
 	m_imageParam = NULL;
+	m_statusCode = SANE_STATUS_GOOD;
 }
 
 HGLibDeviceImpl::~HGLibDeviceImpl()
@@ -384,11 +385,11 @@ HGBool HGLibDeviceImpl::GetSN(HGChar* sn, HGUInt maxLen)
 
 	std::string serialNum;
 	unsigned int serialNumLen = 0;
-	if (SANE_STATUS_NO_MEM == sane_io_control(m_devHandle, IO_CTRL_CODE_GET_SERIAL, NULL, &serialNumLen)
-		&& serialNumLen)
+	m_statusCode = sane_io_control(m_devHandle, IO_CTRL_CODE_GET_SERIAL, NULL, &serialNumLen);
+	if (SANE_STATUS_NO_MEM == m_statusCode && serialNumLen)
 	{
 		serialNum.resize(serialNumLen);
-		sane_io_control(m_devHandle, IO_CTRL_CODE_GET_SERIAL, &serialNum[0], &serialNumLen);
+		m_statusCode = sane_io_control(m_devHandle, IO_CTRL_CODE_GET_SERIAL, &serialNum[0], &serialNumLen);
 	}
 
 	if (serialNum.empty() || maxLen < serialNum.size() + 1)
@@ -411,11 +412,11 @@ HGBool HGLibDeviceImpl::GetFWVersion(HGChar* fwVersion, HGUInt maxLen)
 
 	std::string versionNum;
 	unsigned int versionNumLen = 0;
-	if (SANE_STATUS_NO_MEM == sane_io_control(m_devHandle, IO_CTRL_CODE_GET_HARDWARE_VERSION, NULL, &versionNumLen)
-		&& versionNumLen)
+	m_statusCode = sane_io_control(m_devHandle, IO_CTRL_CODE_GET_HARDWARE_VERSION, NULL, &versionNumLen);
+	if (SANE_STATUS_NO_MEM == m_statusCode && versionNumLen)
 	{
 		versionNum.resize(versionNumLen);
-		sane_io_control(m_devHandle, IO_CTRL_CODE_GET_HARDWARE_VERSION, &versionNum[0], &versionNumLen);
+		m_statusCode = sane_io_control(m_devHandle, IO_CTRL_CODE_GET_HARDWARE_VERSION, &versionNum[0], &versionNumLen);
 	}
 
 	if (versionNum.empty() || maxLen < versionNum.size() + 1)
@@ -439,7 +440,7 @@ HGBool HGLibDeviceImpl::SetParam(HGUInt option, const HGVoid* data)
 
 	HGBool ret = HGFALSE;
 	SANE_Int num_dev_options = 0;
-	sane_control_option(m_devHandle, 0, SANE_ACTION_GET_VALUE, &num_dev_options, NULL);
+	m_statusCode = sane_control_option(m_devHandle, 0, SANE_ACTION_GET_VALUE, &num_dev_options, NULL);
 	for (int i = 1; i < num_dev_options; ++i)
 	{
 		const SANE_Option_Descriptor* desp = sane_get_option_descriptor(m_devHandle, i);
@@ -457,26 +458,30 @@ HGBool HGLibDeviceImpl::SetParam(HGUInt option, const HGVoid* data)
 				SANE_Char* value = (SANE_Char*)GetOptionEnumValue(*(HGUInt*)data);
 				if (NULL != value)
 				{
-					if (SANE_STATUS_GOOD == sane_control_option(m_devHandle, i, SANE_ACTION_SET_VALUE, value, NULL))
+					m_statusCode = sane_control_option(m_devHandle, i, SANE_ACTION_SET_VALUE, value, NULL);
+					if (SANE_STATUS_GOOD == m_statusCode)
 						ret = HGTRUE;
 				}
 			}
 			else if (SANE_TYPE_INT == desp->type)
 			{
 				SANE_Int value = (SANE_Int)(*(HGInt*)data);
-				if (SANE_STATUS_GOOD == sane_control_option(m_devHandle, i, SANE_ACTION_SET_VALUE, &value, NULL))
+				m_statusCode = sane_control_option(m_devHandle, i, SANE_ACTION_SET_VALUE, &value, NULL);
+				if (SANE_STATUS_GOOD == m_statusCode)
 					ret = HGTRUE;
 			}
 			else if (SANE_TYPE_FIXED == desp->type)
 			{
 				SANE_Fixed value = SANE_FIX(*(HGDouble*)data);
-				if (SANE_STATUS_GOOD == sane_control_option(m_devHandle, i, SANE_ACTION_SET_VALUE, &value, NULL))
+				m_statusCode = sane_control_option(m_devHandle, i, SANE_ACTION_SET_VALUE, &value, NULL);
+				if (SANE_STATUS_GOOD == m_statusCode)
 					ret = HGTRUE;
 			}
 			else if (SANE_TYPE_BOOL == desp->type)
 			{
 				SANE_Bool value = (SANE_Bool)(*(HGBool*)data);
-				if (SANE_STATUS_GOOD == sane_control_option(m_devHandle, i, SANE_ACTION_SET_VALUE, &value, NULL))
+				m_statusCode = sane_control_option(m_devHandle, i, SANE_ACTION_SET_VALUE, &value, NULL);
+				if (SANE_STATUS_GOOD == m_statusCode)
 					ret = HGTRUE;
 			}
 
@@ -496,7 +501,7 @@ HGLibDeviceParamGroup* HGLibDeviceImpl::GetParamGroupList(HGUInt* count)
 	std::vector<DeviceParamsGroup> devParams;
 
 	SANE_Int num_dev_options = 0;
-	sane_control_option(m_devHandle, 0, SANE_ACTION_GET_VALUE, &num_dev_options, NULL);
+	m_statusCode = sane_control_option(m_devHandle, 0, SANE_ACTION_GET_VALUE, &num_dev_options, NULL);
 	for (int i = 1; i < num_dev_options; ++i)
 	{
 		const SANE_Option_Descriptor* desp = sane_get_option_descriptor(m_devHandle, i);
@@ -516,7 +521,7 @@ HGLibDeviceParamGroup* HGLibDeviceImpl::GetParamGroupList(HGUInt* count)
 		else if (SANE_TYPE_STRING == desp->type)
 		{
 			char value[256] = { 0 };
-			sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, value, NULL);
+			m_statusCode = sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, value, NULL);
 
 			DeviceParam devParam;
 			devParam.option = name;
@@ -539,7 +544,7 @@ HGLibDeviceParamGroup* HGLibDeviceImpl::GetParamGroupList(HGUInt* count)
 		else if (SANE_TYPE_INT == desp->type)
 		{
 			SANE_Int value = 0;
-			sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, &value, NULL);
+			m_statusCode = sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, &value, NULL);
 
 			DeviceParam devParam;
 			devParam.option = name;
@@ -568,7 +573,7 @@ HGLibDeviceParamGroup* HGLibDeviceImpl::GetParamGroupList(HGUInt* count)
 		else if (SANE_TYPE_FIXED == desp->type)
 		{
 			SANE_Word value = 0;
-			sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, &value, NULL);
+			m_statusCode = sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, &value, NULL);
 
 			DeviceParam devParam;
 			devParam.option = name;
@@ -597,7 +602,7 @@ HGLibDeviceParamGroup* HGLibDeviceImpl::GetParamGroupList(HGUInt* count)
 		else if (SANE_TYPE_BOOL == desp->type)
 		{
 			SANE_Bool value = 0;
-			sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, &value, NULL);
+			m_statusCode = sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, &value, NULL);
 
 			DeviceParam devParam;
 			devParam.option = name;
@@ -702,7 +707,7 @@ HGLibDeviceParam* HGLibDeviceImpl::GetParam(HGUInt option)
 
 	HGLibDeviceParam* param = NULL;
 	SANE_Int num_dev_options = 0;
-	sane_control_option(m_devHandle, 0, SANE_ACTION_GET_VALUE, &num_dev_options, NULL);
+	m_statusCode = sane_control_option(m_devHandle, 0, SANE_ACTION_GET_VALUE, &num_dev_options, NULL);
 	for (int i = 1; i < num_dev_options; ++i)
 	{
 		const SANE_Option_Descriptor* desp = sane_get_option_descriptor(m_devHandle, i);
@@ -721,7 +726,7 @@ HGLibDeviceParam* HGLibDeviceImpl::GetParam(HGUInt option)
 			if (SANE_TYPE_STRING == desp->type)
 			{
 				char value[256] = { 0 };
-				sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, value, NULL);
+				m_statusCode = sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, value, NULL);
 
 				devParam.valueType = HGLIB_OPTION_VALUETYPE_ENUM;
 				devParam.stringValue = value;
@@ -739,7 +744,7 @@ HGLibDeviceParam* HGLibDeviceImpl::GetParam(HGUInt option)
 			else if (SANE_TYPE_INT == desp->type)
 			{
 				SANE_Int value = 0;
-				sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, &value, NULL);
+				m_statusCode = sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, &value, NULL);
 
 				devParam.valueType = HGLIB_OPTION_VALUETYPE_INT;
 				devParam.intValue = (int)value;
@@ -763,7 +768,7 @@ HGLibDeviceParam* HGLibDeviceImpl::GetParam(HGUInt option)
 			else if (SANE_TYPE_FIXED == desp->type)
 			{
 				SANE_Word value = 0;
-				sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, &value, NULL);
+				m_statusCode = sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, &value, NULL);
 
 				devParam.valueType = HGLIB_OPTION_VALUETYPE_DOUBLE;
 				devParam.doubleValue = SANE_UNFIX(value);
@@ -787,7 +792,7 @@ HGLibDeviceParam* HGLibDeviceImpl::GetParam(HGUInt option)
 			else if (SANE_TYPE_BOOL == desp->type)
 			{
 				SANE_Bool value = 0;
-				sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, &value, NULL);
+				m_statusCode = sane_control_option(m_devHandle, i, SANE_ACTION_GET_VALUE, &value, NULL);
 
 				devParam.valueType = HGLIB_OPTION_VALUETYPE_BOOL;
 				devParam.boolValue = (bool)value;
@@ -916,7 +921,7 @@ HGBool HGLibDeviceImpl::ResetParam()
 	HGBool ret = HGFALSE;
 
 	SANE_Int num_dev_options = 0;
-	sane_control_option(m_devHandle, 0, SANE_ACTION_GET_VALUE, &num_dev_options, NULL);
+	m_statusCode = sane_control_option(m_devHandle, 0, SANE_ACTION_GET_VALUE, &num_dev_options, NULL);
 	for (int i = 1; i < num_dev_options; ++i)
 	{
 		const SANE_Option_Descriptor* desp = sane_get_option_descriptor(m_devHandle, i);
@@ -929,7 +934,8 @@ HGBool HGLibDeviceImpl::ResetParam()
 
 		if (0 == strcmp(SANE_STD_OPT_NAME_RESTORE, name) && SANE_TYPE_BUTTON == desp->type)
 		{
-			if (SANE_STATUS_GOOD == sane_control_option(m_devHandle, i, SANE_ACTION_SET_VALUE, NULL, NULL))
+			m_statusCode = sane_control_option(m_devHandle, i, SANE_ACTION_SET_VALUE, NULL, NULL);
+			if (SANE_STATUS_GOOD == m_statusCode)
 				ret = HGTRUE;
 			break;
 		}
@@ -942,8 +948,8 @@ HGBool HGLibDeviceImpl::IsPaperOn()
 {
 	SANE_Bool isOn = SANE_FALSE;
 	unsigned int len = sizeof(SANE_Bool);
-	SANE_Status status = sane_io_control(m_devHandle, IO_CTRL_CODE_GET_PAPER_ON, &isOn, &len);
-	if (SANE_STATUS_GOOD == status && isOn)
+	m_statusCode = sane_io_control(m_devHandle, IO_CTRL_CODE_GET_PAPER_ON, &isOn, &len);
+	if (SANE_STATUS_GOOD == m_statusCode && isOn)
 		return HGTRUE;
 	return HGFALSE;
 }
@@ -952,8 +958,8 @@ HGInt HGLibDeviceImpl::GetStatus()
 {
 	SANE_Bool isOn = SANE_FALSE;
 	unsigned int len = sizeof(SANE_Bool);
-	SANE_Status status = sane_io_control(m_devHandle, IO_CTRL_CODE_GET_PAPER_ON, &isOn, &len);
-	if (SANE_STATUS_GOOD == status)
+	m_statusCode = sane_io_control(m_devHandle, IO_CTRL_CODE_GET_PAPER_ON, &isOn, &len);
+	if (SANE_STATUS_GOOD == m_statusCode)
 		return isOn ? 1 : 0;
 	return -1;
 }
@@ -962,8 +968,8 @@ HGBool HGLibDeviceImpl::Restart()
 {
 	SANE_Power stat = SANE_POWER_RESTART;
 	unsigned int len = sizeof(SANE_Power);
-	SANE_Status status = sane_io_control(m_devHandle, IO_CTRL_CODE_SET_POWER_LEVEL, &stat, &len);
-	if (SANE_STATUS_GOOD == status)
+	m_statusCode = sane_io_control(m_devHandle, IO_CTRL_CODE_SET_POWER_LEVEL, &stat, &len);
+	if (SANE_STATUS_GOOD == m_statusCode)
 		return HGTRUE;
 	return HGFALSE;
 }
@@ -972,8 +978,8 @@ HGBool HGLibDeviceImpl::ShutDown()
 {
 	SANE_Power stat = SANE_POWER_SHUTDOWN;
 	unsigned int len = sizeof(SANE_Power);
-	SANE_Status status = sane_io_control(m_devHandle, IO_CTRL_CODE_SET_POWER_LEVEL, &stat, &len);
-	if (SANE_STATUS_GOOD == status)
+	m_statusCode = sane_io_control(m_devHandle, IO_CTRL_CODE_SET_POWER_LEVEL, &stat, &len);
+	if (SANE_STATUS_GOOD == m_statusCode)
 		return HGTRUE;
 	return HGFALSE;
 }
@@ -1001,8 +1007,8 @@ HGBool HGLibDeviceImpl::StartScan(HGLibDeviceScanEventFunc eventFunc, HGPointer
 		m_imageParam = imageParam;
 		m_scanning = HGTRUE;
 
-		SANE_Status status = sane_start(m_devHandle);
-		if (SANE_STATUS_GOOD != status)
+		m_statusCode = sane_start(m_devHandle);
+		if (SANE_STATUS_GOOD != m_statusCode)
 		{
 			m_scanning = HGFALSE;
 			m_eventFunc = NULL;
@@ -1062,6 +1068,11 @@ HGBool HGLibDeviceImpl::StopScanAsyn()
 	return ret;
 }
 
+HGInt HGLibDeviceImpl::GetOperateCode()
+{
+	return m_statusCode;
+}
+
 const char* HGLibDeviceImpl::GetGroupName(HGUInt group)
 {
 	if (group > HGLIB_GROUP_NAME_PAPERFEEDING)
diff --git a/sdk/scannerlib/HGLibDeviceImpl.hpp b/sdk/scannerlib/HGLibDeviceImpl.hpp
index 88c27958..c6e1ffae 100644
--- a/sdk/scannerlib/HGLibDeviceImpl.hpp
+++ b/sdk/scannerlib/HGLibDeviceImpl.hpp
@@ -39,6 +39,7 @@ public:
 		HGLibDeviceScanImageFunc imageFunc, HGPointer imageParam);
 	HGBool StopScan();
 	HGBool StopScanAsyn();
+	HGInt GetOperateCode();
 
 private:
 	static const char* GetGroupName(HGUInt group);
@@ -65,6 +66,7 @@ private:
 	HGPointer m_eventParam;
 	HGLibDeviceScanImageFunc m_imageFunc;
 	HGPointer m_imageParam;
+	HGInt m_statusCode;
 };
 
 #endif /* __HGLIBDEVICEIMPL_HPP__ */
\ No newline at end of file
diff --git a/sdk/scannerlib/HGScannerLib.cpp b/sdk/scannerlib/HGScannerLib.cpp
index 615d6936..2bd22abd 100644
--- a/sdk/scannerlib/HGScannerLib.cpp
+++ b/sdk/scannerlib/HGScannerLib.cpp
@@ -318,3 +318,14 @@ HGBool HGAPI HGLib_StopDeviceScanAsyn(HGLibDevice device)
 	HGLibDeviceImpl* deviceImpl = (HGLibDeviceImpl*)device;
 	return deviceImpl->StopScanAsyn();
 }
+
+HGInt HGAPI HGLib_GetDeviceOperateCode(HGLibDevice device)
+{
+	if (NULL == device)
+	{
+		return 0;
+	}
+
+	HGLibDeviceImpl* deviceImpl = (HGLibDeviceImpl*)device;
+	return deviceImpl->GetOperateCode();
+}
diff --git a/sdk/scannerlib/HGScannerLib.h b/sdk/scannerlib/HGScannerLib.h
index 516e2af2..1460368f 100644
--- a/sdk/scannerlib/HGScannerLib.h
+++ b/sdk/scannerlib/HGScannerLib.h
@@ -29,6 +29,20 @@ HG_DECLARE_HANDLE(HGLibDevice);
 #define HGLIB_TIFFCOMPRESSION_LZW		3L
 #define HGLIB_TIFFCOMPRESSION_JPEG		4L
 
+/* �豸������ */
+#define HGLIB_DEV_OPERATECODE_GOOD			0L
+#define HGLIB_DEV_OPERATECODE_UNSUPPORTED	1L
+#define HGLIB_DEV_OPERATECODE_CANCELLED		2L
+#define HGLIB_DEV_OPERATECODE_BUSY			3L
+#define HGLIB_DEV_OPERATECODE_INVAL			4L
+#define HGLIB_DEV_OPERATECODE_EOF			5L
+#define HGLIB_DEV_OPERATECODE_JAMMED		6L
+#define HGLIB_DEV_OPERATECODE_NO_DOCS		7L
+#define HGLIB_DEV_OPERATECODE_COVER_OPEN	8L
+#define HGLIB_DEV_OPERATECODE_IO_ERROR		9L
+#define HGLIB_DEV_OPERATECODE_NO_MEM		10L
+#define HGLIB_DEV_OPERATECODE_ACCESS_DENIED	11L
+
 /* �豸�Ȱβ��¼� */
 #define HGLIB_DEVHOTPLUG_EVENT_ARRIVE	1L
 #define HGLIB_DEVHOTPLUG_EVENT_REMOVE	2L
@@ -546,4 +560,7 @@ HGEXPORT HGBool HGAPI HGLib_StopDeviceScan(HGLibDevice device);
 /* ֹͣɨ��-�첽 */
 HGEXPORT HGBool HGAPI HGLib_StopDeviceScanAsyn(HGLibDevice device);
 
+/* ��ȡ�豸�����루�ڵ����豸���������Ժ� */
+HGEXPORT HGInt HGAPI HGLib_GetDeviceOperateCode(HGLibDevice device);
+
 #endif /* __HGSCANNERLIB_H__ */
\ No newline at end of file