diff --git a/sane/DlgCfgMgr.cpp b/sane/DlgCfgMgr.cpp
index cc61504..5b35962 100644
--- a/sane/DlgCfgMgr.cpp
+++ b/sane/DlgCfgMgr.cpp
@@ -107,7 +107,7 @@ void dlg_cfg_mgr::handle_notify(UINT id, LPNMHDR pnhdr)
 		{
 			LPNMLVDISPINFOW pdisp = (LPNMLVDISPINFOW)pnhdr;
 
-			label_ = pdisp->item.pszText;
+			label_ = pdisp->item.pszText ? pdisp->item.pszText : L"";
 		}
 		else if (pnhdr->code == LVN_ENDLABELEDITW)
 		{
diff --git a/twain/twain/huagaods.cpp b/twain/twain/huagaods.cpp
index 9fd8279..1346049 100644
--- a/twain/twain/huagaods.cpp
+++ b/twain/twain/huagaods.cpp
@@ -3115,6 +3115,7 @@ int huagao_ds::handle_scanner_event(int ev)
 	case SANE_EVENT_UI_CLOSE_CANCEL:
 		scanner_->stop();
 		//	notifyEndWithoutImages();
+		notifyCloseCancel();	// 修复点击进度框"取消"按钮，UI不能正常结束的BUG - added on 2023-02-14
 		break;
 	case SANE_EVENT_UI_CLOSE_NORMAL:
 		scanner_->ui_hide();