Qt 4.7.1 VNC issue?

Hi,I compile the QT4.7.1 with VNCServer support,and choose the vncviewer to connect to the server on windows,it's OK.My question is:
1. Does QT support the copy/paste operation from client to server?Paste from windows platform for example.
2. I run the vnc server in a Set Top Box,all operations is smooth in the server but is not in the client endian.

Thanks for your attention.