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Note that this document assumes that you either are using the \l{The Virtual Framebuffer} or that you are running \l{Qt for Embedded Linux} using the \l {The VNC Protocol and Qt for Embedded Linux}{VNC} protocol, \e or that you have the Linux framebuffer configured correctly and that no server process is running. (To test that the Linux framebuffer is set up correctly, use the program provided by the \l {Testing the Linux Framebuffer} document.) \tableofcontents \section1 Using a Single Display To run the application using a single display, change to a Linux console and select an application to run, e.g. \l {Text Edit}{demos/textedit}. Run the application with the \c -qws option: \snippet doc/src/snippets/code/doc_src_emb-running.qdoc 0 \table 100% \row \o Provided that the environment variables are adjusted properly during the \l {Installing Qt for Embedded Linux}{installation process}, you should see the \l {Text Edit} demo appear. It might be that the hardware drivers must be specified explicitly to make everything work properly. For more information, please consult the following documentation: \list \o \l{Qt for Embedded Linux Pointer Handling}{Pointer Handling} \o \l{Qt for Embedded Linux Character Input}{Character Input} \o \l{Qt for Embedded Linux Display Management}{Display Management} \endlist \o \inlineimage qt-embedded-runningapplication.png \endtable Additional applications can be run as clients, i.e., by running these applications \e without the \c -qws option they will connect to the existing server as clients. You can exit the server application at any time using \gui{Ctrl+Alt+Backspace}. \section1 Using Multiple Displays Qt for Embedded Linux also allows multiple displays to be used simultaneously. There are two ways of achieving this: Either run multiple Qt for Embedded Linux server processes, or use the ready-made \c Multi screen driver. When running multiple server processes, the screen driver (and display number) must be specified for each process using the \c -display command line option or by setting the QWS_DISPLAY environment variable. For example: \snippet doc/src/snippets/code/doc_src_emb-running.qdoc 1 See the \l {Qt for Embedded Linux Display Management}{display management} documentation for more details on how to specify a screen driver. Note that you must also specify the display (i.e., server process) when starting client applications: \snippet doc/src/snippets/code/doc_src_emb-running.qdoc 2 There is no way of moving a client from one display to another when running multiple server processes. Using the \c Multi screen driver, on the other hand, applications can easiliy be moved between the various screens. The \c Multi screen driver can be specified just like any other screen driver by using the \c -display command line option or by setting the QWS_DISPLAY environment variable. For example: \snippet doc/src/snippets/code/doc_src_emb-running.qdoc 3 See the \l {Qt for Embedded Linux Display Management}{display management} documentation for details regarding arguments. \section1 Command Line Options \table 100% \header \o Option \o Description \row \o \bold -fn \o Defines the application font. For example: \snippet doc/src/snippets/code/doc_src_emb-running.qdoc 4 The font should be specified using an X logical font description. \row \o \bold -bg \o Sets the default application background color. For example: \snippet doc/src/snippets/code/doc_src_emb-running.qdoc 5 The color-name must be one of the names recognized by the QColor constructor. \row \o \bold -btn \o Sets the default button color. For example: \snippet doc/src/snippets/code/doc_src_emb-running.qdoc 6 The color-name must be one of the names recognized by the QColor constructor. \row \o \bold -fg \o Sets the default application foreground color. For example: \snippet doc/src/snippets/code/doc_src_emb-running.qdoc 7 The color-name must be one of the names recognized by the QColor constructor. \row \o \bold -name \o Sets the application name, i.e. the application object's object name. For example: \snippet doc/src/snippets/code/doc_src_emb-running.qdoc 8 \row \o \bold -title \o Sets the application's title. For example: \snippet doc/src/snippets/code/doc_src_emb-running.qdoc 9 \row \o \bold -geometry <width>x<height>+<Xoffset>+<Yoffset> \o Sets the client geometry of the first window that is shown. For example: \snippet doc/src/snippets/code/doc_src_emb-running.qdoc 10 \row \o \bold -keyboard \o Enables the keyboard. See also: \l {Qt for Embedded Linux Character Input}. \row \o \bold -nokeyboard \o Disables the keyboard. \row \o \bold -mouse \o Enables the mouse cursor. See also: \l {Qt for Embedded Linux Pointer Handling}. \row \o \bold -nomouse \o Disables the mouse cursor. \row \o \bold -qws \o Runs the application as a server application, i.e. constructs a QApplication object of the QApplication::GuiServer type. \row \o \bold -display \o Specifies the screen driver. See also: \l {Qt for Embedded Linux Display Management}. \row \o \bold -decoration <style>\o Sets the application decoration. For example: \snippet doc/src/snippets/code/doc_src_emb-running.qdoc 11 The supported styles are \c windows, \c default and \c styled. See also QDecoration. \endtable */