nim::DownloadCallbackUserData 成员列表

成员的完整列表，这些成员属于 nim::DownloadCallbackUserData,包括所有继承而来的类成员

callback_progress_pointer	nim::DownloadCallbackUserData
callback_result	nim::DownloadCallbackUserData
callback_speed_pointer	nim::DownloadCallbackUserData
callback_transfer_pointer	nim::DownloadCallbackUserData
DownloadCallbackUserData()	nim::DownloadCallbackUserData	inline