source: trunk/doc/src/platforms/emb-charinput.qdoc@ 651

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41
42/*!
43 \page qt-embedded-charinput.html
44
45 \title Qt for Embedded Linux Character Input
46 \ingroup qt-embedded-linux
47
48 When running a \l {Qt for Embedded Linux} application, it either runs as a
49 server or connects to an existing server. The keyboard driver is
50 loaded by the server application when it starts running, using
51 Qt's \l {How to Create Qt Plugins}{plugin system}.
52
53 Internally in the client/server protocol, all system generated
54 events, including key events, are passed to the server application
55 which then propagates the event to the appropriate client. Note
56 that key events do not always come from a keyboard device, they
57 can can also be generated by the server process using input
58 widgets.
59
60 \table
61 \header \o Input Widgets
62 \row
63 \o
64
65 The server process may call the static QWSServer::sendKeyEvent()
66 function at any time. Typically, this is done by popping up a
67 widget that enables the user specify characters with the pointer
68 device.
69
70 Note that the key input widget should not take focus since the
71 server would then just send the key events back to the input
72 widget. One way to make sure that the input widget never takes
73 focus is to set the Qt::Tool widget flag in the QWidget
74 constructor.
75
76 The \l{Qt Extended} environment contains various input widgets such as
77 Handwriting Recognition and Virtual Keyboard.
78
79 \endtable
80
81 \tableofcontents
82