[Qt-interest] How can I get the keyboard input in Qt?

[liweikuijinan]

hi,
I'm writing an GUI application like Hyper Terminal with Qt.Now I can receive data from serial port,but when I need to input something interacting with the program in the other end,what I type can't sent to it. I think I should get the string I typed fist,then sent to serial port.
so, how can I get the keyboard input in Qt? Can anyone help me?
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