rdesktop record problem

Hi all,

    I log in win7 system from my ubuntu system or my devel board
through rdesktop, it can detect playback device(i don't know it's
remote window device or local device?) and when play music i can hear
it in local. but can not detect record device in win7, so i can not
record sound, does anyone else have this problem ? Does rdesktop
support record sound in remote through local sound card now? When
connecting, client send sound device info to server?

Thanks

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