diff --git a/huagao/Device/GScan.h b/huagao/Device/GScan.h
index e5400d26..ba458e57 100644
--- a/huagao/Device/GScan.h
+++ b/huagao/Device/GScan.h
@@ -46,6 +46,7 @@ public:
 	virtual void ResetScanner() =0;
 	virtual bool Get_IsImageQueueEmpty() = 0;
 	virtual void reset() = 0;
+	virtual void clear_hwerror() = 0;
 
 	virtual void setdecodepixtype(int twpixtype)= 0;
 	virtual UINT32 get_ErrorCode() = 0;