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How QT / Embedded does the window event distribute_Qt, Embedded
Tuesday, December 8th, 2009 at 21:17 | No commentsCategories: Embedded systemShort Content: The QT window system may contain many advancements, regarding the Linux on application, an advancement may correspond an application procedure, each application procedure has own MainWindow, may also have own Widget stack. . Supposition one kind of situation: Simultaneously opens many applications, and between each application's Windows does not exist covers completely, when we use the mouse to click on some application the window, this application's window will then appear in screen's uppermost layer. Regarding understood that the ... -
In application embedded Linux real-time optimization_linux, embedded, optimization, real-time
Saturday, December 5th, 2009 at 17:35 | No commentsCategories: Embedded systemShort Content: The embedded system is moves in limited space and in the limited resources, realizes some kind of specific function or the function set installment highly effective. Its development usually receives the detachment condition the limit, such as weak CPU handling ability, the small memory space, few may supply the choice the peripheral device, the limited power source supply and so on. Each embedded system's development is the careful planning all, uses the limited resources to display the biggest ... -
Uses Embedded Visual C4.0 to carry on WindowsCE.net the development_Embedded, WindowsCE, Visual
Monday, November 30th, 2009 at 18:00 | No commentsCategories: Embedded systemShort Content: This article mainly narrated how to use Embedded visual C 4.0 to carry on the Windows CE.net's development? If you already could apply Microsoft Visual C skilled in this Microsoft Windows platform the most outstanding development kit, then this in view of 4.0 pair of you relatively is also simple in embedded Windows CE.net's development environment Embedded visual C. About Embedded visual C 4.0 guides Embedded visual C 4.0 can cause you to develop and Visual the C ... -
The QTE touchscreen loads_touch screen, Qt, Embedded
Sunday, November 29th, 2009 at 17:37 | No commentsCategories: Embedded systemShort Content: The touchscreen load has two methods:1st, QTE itself touchscreen load; Mainly pays attention to three contents: When translates QTE, in it from the definition configuration files (located at QTDIR/src/tools/qconfig-XXX.h, its XXX for from definition name, this characteristic character may when configure XXX assigns the content which with - qconfig) should add:#define QT_QWS_IPAQ#define QT_QWS_IPAQ_RAWRemoves the mouse automatic diagnosis function: #define QT_NO_QWS_MOUSE_AUTORemoves mouse actuation which does not use, (in reality, this step may not want, but regarding ... -
Qtopia FAQ_Qt, qtopia, Embedded
Sunday, November 29th, 2009 at 15:45 | No commentsCategories: Embedded systemShort Content: Qt-X11/QtEmbedded/Qtopia and other common package's relations?when build Qtopia can see the following package frequently:qt-x11-2.3.2qt-x11-3.3.xqte-2.3.xqtopia-2.xtmake-1.3qmake, uic, moc…And the Qtopia translation relies on Qte;qt-x11-2.3 only with translates some tool related, like uic, moc, qvfb. Qtopia does not rely on qt-x11;qt - x11-3.3.x uses for to translate qtopia desktop (qtopia and tabletop synchronization tool) and i18n related lupdate, the lrelease tool, if therefore your configure qtopia time has not added - the no-qtopiadesktop option or uses - the languages parameter on to ... -
QT / Embedded withdraws from the ttf fonts assigns the Chinese character to produce the qpf fonts the means_linux, Qt, Embedded
Sunday, November 29th, 2009 at 09:57 | No commentsCategories: Embedded systemShort Content: Solution mentality: The gain Chinese character's unicode code, uses the unicode code to gain in the ttf fonts Chinese character to produce the qpf fonts. The first linux environment which uses to me does following explained: Linux system: Redhat Linux 9QT: qt-embedded-free-3.3.3.tar .bz2 Below started officially: 1. Under root directory newly built table of contents mkdir qte 2. Transfers to the qte table of contents qt-embedded-free-3.3.3.tar.bz2 mv qt-embedded-free-3.3.3.tar .bz2 /qte 3. Decompresses qt-embedded-free-3.3.3.tar.bz2 tar - ... -
Realizes based on the Qt / Embedded embedded Linux application procedure_linux, Qt, Embedded
Sunday, November 29th, 2009 at 08:55 | No commentsCategories: Embedded systemShort Content: 1 embedded GUI survey Ordinary Linux has oneself standard GUI system - - X Windows, but because X Windows is too huge and extremely fat, consumes the system resources extremely, moreover many functions regarding the embedded system are unnecessary, is not suitable for the resources limited embedded system use. The embedded system and the tradition computer system compare specialized, its software and hardware design embarks directly from the concrete application, embedded Linux is applies in the embedded equipment development ... -
Qt / Embedded GUI transplant and application procedure development_linux, Qt, Embedded
Wednesday, November 25th, 2009 at 21:45 | No commentsCategories: Embedded systemShort Content: Abstract: Introduced the system platform construction; With emphasis separately from the main engine environment and the XSbase 255 embedded development board two parts introduced that the Qt/Embedded graphical interface the transplant, unified the example to elaborate finally how to develop based on the embedded Linux application procedure as well as the filing system mirror image manufacture. Along with the Internet and mobile communication technology day by day mature, both seep and the fusion step mutually are speeding up. ... -
Uses the real-time essence to develop the embedded multi-task program_embedded, real-time kernel
Monday, November 23rd, 2009 at 08:49 | No commentsCategories: Embedded systemTags: Embedded, real-time kernelShort Content: Abstract: The embedded system application complicates day by day, the traditional onstage/daemon development mechanism already could not meet the need, at present more uses the grab type real-time essence to develop the embedded multi-duty system. The real-time essence provides for the multi-duty application procedure is most basic and the most important service. This article introduced that the real-time essence and the multi-duties, and proposed when the use real-time essence carries on the system development, according to system function reasonable ... -
uCOS-II embedded serial port connection module design_ucos, embedded
Sunday, November 22nd, 2009 at 11:31 | No commentsCategories: Embedded systemShort Content: In the embedded application, uses RTOS the primary cause is to enhance system's reliability, next is raises development efficiency, the reduction development cycle. uCOS-II is one takes the lead the type real-time multi-duty essence, the user is the embedded system, reduces suitably to the source code, very easy to transplant to 8~32 different frame microprocessors. But uCOS-II is only a real-time essence, it does not look like other real-time operating system (for example embedded Linux) such to provide ...
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