diff --git a/huagao/Device/GScan.h b/huagao/Device/GScan.h
index f6613481..6a5d0830 100644
--- a/huagao/Device/GScan.h
+++ b/huagao/Device/GScan.h
@@ -61,7 +61,9 @@ typedef enum tagUsbSupported {
 	// PC繁忙或出错
 	PC_SCAN_BUSY_or_ERROR = 73,
 	//USB 未连接
-	USB_DISCONNECTED = 200
+	USB_DISCONNECTED = 200,
+	//用户点击停止
+	USER_STOP = 201
 } UsbSupported, * PUsbSupported;
 
 
@@ -71,10 +73,10 @@ enum tagEventIndex
 	EVENT_NUM
 };
 
-class DiscardBlank;
 class CImageApply;
 class IUsb;
 class ImageMatQueue;
+typedef void(*deviceevent_callback)(int eventID, void* userdata);
 
 class IScanner
 {
@@ -82,7 +84,8 @@ public:
 	IScanner() { bFilterMsg = false; }
 	virtual ~IScanner() { bFilterMsg = true; }
 	void ResetMsgFiter() { bFilterMsg = true; }
-	virtual void open(int vid, int pid) = 0;;
+	virtual void open(int vid, int pid) = 0;
+	virtual void regist_deviceevent_callback(deviceevent_callback callback, void* usrdata = 0) = 0;
 	virtual int aquire_bmpdata(std::vector<unsigned char>& bmpdata) = 0;
 	virtual BOOL IsConnected() = 0;
 	virtual std::string GetFWVersion() = 0;
diff --git a/huagao/Device/GScan200.cpp b/huagao/Device/GScan200.cpp
index 894f92a9..2a0238d3 100644
--- a/huagao/Device/GScan200.cpp
+++ b/huagao/Device/GScan200.cpp
@@ -27,6 +27,10 @@ void GScan200::open(int vid, int pid)
 	}
 }
 
+void GScan200::regist_deviceevent_callback(deviceevent_callback callback, void* usrdata)
+{
+}
+
 int GScan200::aquire_bmpdata(std::vector<unsigned char>& bmpdata)
 {
 	return 0;
diff --git a/huagao/Device/GScan200.h b/huagao/Device/GScan200.h
index 12aa2adb..76866098 100644
--- a/huagao/Device/GScan200.h
+++ b/huagao/Device/GScan200.h
@@ -11,6 +11,7 @@ public:
 	GScan200();
 	virtual ~GScan200();
 	virtual void open(int vid, int pid) override;
+	virtual void regist_deviceevent_callback(deviceevent_callback callback, void* usrdata = 0) override;
 	virtual int aquire_bmpdata(std::vector<unsigned char>& bmpdata) override;
 	virtual BOOL IsConnected() override;
 	virtual std::string GetFWVersion() override;
diff --git a/huagao/Device/GScanO200.cpp b/huagao/Device/GScanO200.cpp
index 39f79518..e93185a7 100644
--- a/huagao/Device/GScanO200.cpp
+++ b/huagao/Device/GScanO200.cpp
@@ -143,6 +143,7 @@ typedef enum tagUsbKeyWords : UINT32
 } UsbKeyWords, * PUsbKeyWords;
 
 GScanO200::GScanO200() :
+	huagods(NULL),
 	m_bread_fixed_ratio_fromDSP(false)
 {
 	m_pImages.reset(new ImageMatQueue());
@@ -192,11 +193,22 @@ void GScanO200::open(int vid, int pid)
 	{
 		m_usb = *usbs.begin();
 		bool ret = m_usb->open();
+		USBCB status = { GET_DSP_STATUS ,0,0 };
+		if (m_usb.get() && m_usb->is_connected())
+			m_usb->write_bulk(&status, sizeof(status));
+
+		if (m_usb.get() && m_usb->is_connected())
+			m_usb->read_bulk(&status, sizeof(status));
 		if (ret) {
 			m_usb->set_usbhotplug_callback(usbhotplug_callback, this);
 		}
 	}
 }
+void GScanO200::regist_deviceevent_callback(deviceevent_callback callback, void* usrdata)
+{
+	huagods = usrdata;
+	dev_callback = callback;
+}
 #ifdef LOG_NORMAL
 fstream fsaquire;
 static int aquiretimes = 1;
@@ -368,12 +380,14 @@ void GScanO200::Scanner_StartScan(UINT16 count)
 			m_pImages->setscanflags(false);
 			devState = DEV_WRONG;
 			Set_ErrorCode(status.u32_Data);
+			if (huagods)
+				dev_callback(status.u32_Data, huagods);
 			return;
 		default:
 			break;
 		}
 
-#ifndef G200
+//#ifndef G200
 		USBCB paperstatus = { GET_PAPER_STATUS ,0,0 };
 		if (m_usb.get() && m_usb->is_connected())
 			m_usb->write_bulk(&paperstatus, sizeof(paperstatus));
@@ -383,9 +397,11 @@ void GScanO200::Scanner_StartScan(UINT16 count)
 			m_pImages->setscanflags(false);
 			devState = DEV_WRONG;
 			Set_ErrorCode(NO_FEED);
+			if (huagods)
+				dev_callback(NO_FEED, huagods);
 			return;
 		}
-#endif // !G200
+//#endif // !G200
 
 		if (gcap.is_duplex)
 			count = count == 65535 ? 65535 : count / 2;
@@ -484,6 +500,9 @@ void GScanO200::usbhotplug(bool isleft)
 		m_pImages->setscanflags(false);
 		if (m_usb.get())
 			m_usb.reset();
+
+		if (huagods)
+			dev_callback(USB_DISCONNECTED, huagods);
 	}
 }
 
@@ -529,6 +548,7 @@ void GScanO200::usbmain()
 			//		continue;
 			//	}
 			//}
+
 			if (sw.elapsed_ms() > 10000)
 			{
 				m_pImages->setscanflags(false);
@@ -590,11 +610,15 @@ void GScanO200::usbmain()
 				Set_ErrorCode(usbcb.u32_Data);
 				m_pImages->setscanflags(false);
 				devState = DEV_WRONG;
+				if (huagods)
+					dev_callback(usbcb.u32_Data, huagods);
 #else
 				if (!haveError)
 				{
 					haveError = true;
 					Set_ErrorCode(usbcb.u32_Data);
+					if (huagods)
+						dev_callback(usbcb.u32_Data, huagods);
 				}
 
 #endif
diff --git a/huagao/Device/GScanO200.h b/huagao/Device/GScanO200.h
index a68df294..ff9af24c 100644
--- a/huagao/Device/GScanO200.h
+++ b/huagao/Device/GScanO200.h
@@ -16,6 +16,7 @@ public:
 	virtual ~GScanO200();
 	// 通过 IGScan 继承
 	virtual void open(int vid, int pid) override;
+	virtual void regist_deviceevent_callback(deviceevent_callback callback, void* usrdata = 0) override;
 	virtual int aquire_bmpdata(std::vector<unsigned char>& bmpdata) override;
 	virtual BOOL IsConnected() override;
 	virtual std::string GetFWVersion() override;
@@ -47,5 +48,7 @@ private:
 	std::shared_ptr<IUsb> m_usb;
 	std::unique_ptr<thread> m_threadUsb;
 	GScanCap gcap;
+	void* huagods;
+	deviceevent_callback dev_callback;
 };
 
diff --git a/huagao/Device/GScanVirtual.cpp b/huagao/Device/GScanVirtual.cpp
index b3692c6c..8281e48d 100644
--- a/huagao/Device/GScanVirtual.cpp
+++ b/huagao/Device/GScanVirtual.cpp
@@ -28,6 +28,10 @@ void GScanVirtual::open(int vid, int pid)
 	fs.close();
 }
 
+void GScanVirtual::regist_deviceevent_callback(deviceevent_callback callback, void* usrdata)
+{
+}
+
 int GScanVirtual::aquire_bmpdata(std::vector<unsigned char>& bmpdata)
 {
 	StopWatch sw;
diff --git a/huagao/Device/GScanVirtual.h b/huagao/Device/GScanVirtual.h
index 559f3fdf..b9e81a42 100644
--- a/huagao/Device/GScanVirtual.h
+++ b/huagao/Device/GScanVirtual.h
@@ -10,6 +10,7 @@ public:
 	virtual ~GScanVirtual();
 	// 通过 IGScan 继承
 	virtual void open(int vid, int pid) override;
+	virtual void regist_deviceevent_callback(deviceevent_callback callback, void* usrdata = 0) override;
 	virtual int aquire_bmpdata(std::vector<unsigned char>& bmpdata) override;
 	virtual BOOL IsConnected() override;
 	virtual std::string GetFWVersion() override;