ui 扫描窗口是主动发送出去的，暂时这么弄

sane/scanner.cpp

@@ -697,6 +697,19 @@ void scanner::apply_config(void)
 }
 void scanner::on_ui_event(int uev, void* sender)
 {
+	if (uev == SANE_EVENT_UI_SCAN_COMMAND) //UI主动通知
+	{
+		int(__stdcall * h)(int, void*) = scanner_ev_handler_;
+		if (h)
+		{
+			//wchar_t	info[128] = { 0 };
+			//(info, _countof(info) - 1, L"[CRAZY]%d scanner events stored but APP has no action, we try to trigger it ONCE ...\r\n", ev_cnt_);
+			//ev_cnt_--;
+			h(SANE_EVENT_UI_SCAN_COMMAND, evh_param_);
+			return;
+		}
+	}
+
 	bool indicator = sender == indicator_.get();
 	if (uev == SANE_EVENT_SCAN_FINISHED || uev == SANE_EVENT_UI_CLOSE_NORMAL || uev == SANE_EVENT_UI_CLOSE_CANCEL)
 	{
@@ -752,6 +765,8 @@ void scanner::on_ui_event(int uev, void* sender)
 		ev_cnt_++;
 	}
 
+
+
 	if (ev_cnt_ == events_.count() &&
 		(ev_cnt_ >= 5 || (ev_cnt_ > 1 && !is_scanning_)))
 	{
@@ -2460,9 +2475,11 @@ COM_API_IMPLEMENT(scanner, int, get_scanned_images(DWORD milliseconds))
 		else
 			Sleep(elapse);
 
+		count = images_.count();
+
 		//int ev = get_event();
 		//
-		//count = images_.count();
+		
 		//if (ev == SANE_EVENT_SCAN_FINISHED)
 		//{
 		//	ui_hide();
@@ -2930,7 +2947,7 @@ COM_API_IMPLEMENT(scanner, bool, ui_show_setting(HWND parent, bool with_scan, bo
 		//		break;
 		//	}
 		//};
-		int res = callback::show_setting_ui(handle_, parent, &sane_api_, true);
+		int res = callback::show_setting_ui(handle_, parent, &sane_api_, with_scan);
 		if (res == ui_result::UI_RESULT_CLOSE_NORMAL)
 		{
 			int ev = SANE_EVENT_UI_CLOSE_NORMAL;