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Mobile and Embedded

The forum for developing everything embedded: Linux, WinCE, Symbian, MeeGo... you name it.
14.1k Topics 62.6k Posts
  • General question on Apple

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    L
    For those looking for the Indie licence agreement, it can be found here: "Service terms":http://www.qt.io/terms-conditions/ Scroll down to find it.
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    Thank you both for the suggestions! -Ed
  • QT_QPA_EVDEV_*_PARAMETERS documentation

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  • Qt and DataBase

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    Thank you p3c0, I'm going to check them. I will inform you how is the situation.
  • Create an application that respect whatever the inch of a device

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    If it is a widget application: then use layouts and forget the graphical dialog designer. Better create the whole content by source code. Use nested layouts to arrange things horizontally, vertically or int able form. Avoid to set any position or size because these values are pixels. In some rare cases where position/size parameters cannot be avoided, make them relative to the font size. Example: if a text editor field has a size of 300x200 pixels it might look fine on most desktop computers. But many mobile devices have a much higher screen resolution, so the text editor appears too small. But if you say, the size of the text editor is width=20*fontSize, height=15xfontsize, then it looks fine on any display. But this is not possible in the graphical designer tool.
  • Font size changed on Android after upgrade to 5.3.2

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    It is listed as known issue: "here":http://qt-project.org/wiki/Qt_for_iOS_known_issues but I have no idea how to use this since my "plugin" is just a couple of cpp's
  • QNX 6.6.0 not accepting keyboard input

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  • Flickering Screen with Qt 5.3 on QNX 6.6.0 platform

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  • QNetworkConfigurationManager in Android

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    Yes I have it in mind. I was planning to use QNetworkConfigurationManager to see available networks, put them in a ListWidget, and use QAndroidExtras to connect to a specific network, the one the user chooses from the list. Anyway, thank you very much for your reply! I will search more to see if I will find a solution!
  • QtCreator cant build using yocto tool chain. Permission denied

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    is this problem bcz QTCreator settings or the cross compiler toolchain?
  • How to install my app android on a Tablet

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    Hello L.MCH, It's okey now, thank you so much. I instaled it in the tablet. I'm going to create a resource folder and put an image. To you also, SGaist, thank you so much. The links that you share with me helped me. The solution is : Setup the tablet to allow developer mode connect the Tablet with USB cable to the computer I copied the QtApp-debug.apk file from my computer installer file that we can find in YOUR_BUILD_FOLDER/android-build/bin Choose the QtApp-debug.apk in the tablet and install the app by clicking on it restart the computer or not Each time you modify your app in the computer you save it, when you run it, it will run directly in you tablet. Good luck to everyone
  • No cursor on Qt5 under linuxfb plugin

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    I figured out that this is not related to QT 5.3.1. If I connect another mouse e.g. with cable the mouse cursor appears as expected if I choose the correct event device (/dev/input/...). But some wireless mice and touchpads are not working well. But this must be related to the evdev support(?).
  • Qt 5.X Embedded Tutorials

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    I'm looking to do a cross-compile, not a native compile. So the second link was the one I was looking for, but it doesn't seem to work correctly. The instructions from the link say the configure command should be: @./configure -opengl es2 -device linux-rasp-pi-g++ -device-option CROSS_COMPILE=~/opt/gcc-4.7-linaro-rpi-gnueabihf/bin/arm-linux-gnueabihf- -sysroot /mnt/rasp-pi-rootfs -opensource -confirm-license -optimized-qmake -reduce-relocations -reduce-exports -release -make libs -prefix /usr/local/qt5pi@ I'm compiling for the TI AM335x EVM instead, so the closest target is the begleboard, and the tool chain is provided by the TI SDK, so instead my configure command should be: @./configure -opengl es2 -device linux-beagleboard-g++ -device-option CROSS_COMPILE=~/ti-sdk-am335x-evm-07.00.00.00/linux-devkit/sysroots/i686-arago-linux/usr/bin/arm-linux-gnueabihf- -sysroot ~/ti-sdk-am335x-evm-07.00.00.00/linux-devkit/sysroots/cortexa8hf-vfp-neon-3.8-oe-linux-gnueabi -opensource -confirm-license -optimized-qmake -reduce-relocations -reduce-exports -release -make libs -prefix /opt/qt5-am335x@ However that comes back with errors WRT the architecture and OpenGL functionality: @Note: PKG_CONFIG_SYSROOT_DIR automatically set to /home/mike/ti-sdk-am335x-evm-07.00.00.00/linux-devkit/sysroots/cortexa8hf-vfp-neon-3.8-oe-linux-gnueabi Could not determine the target architecture! Turn on verbose messaging (-v) to see the final report. The OpenGL ES 2.0 functionality test failed! You might need to modify the include and library search paths by editing QMAKE_INCDIR_OPENGL_ES2, QMAKE_LIBDIR_OPENGL_ES2 and QMAKE_LIBS_OPENGL_ES2 in /home/mike/qt-everywhere-opensource-src-5.2.0/qtbase/mkspecs/devices/linux-beagleboard-g++.@ Hard to tell why exactly it's having issues, I feel like if the tutorial described what/why it picked the configuration options it did, it would have helped.
  • How to trigger the virtual keyboard on Android

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    benlauB
    You may try QInputMethod.show()
  • Android support for adjusting the audio input level

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  • Cross-compile error: PKG_CONFIG_SYSROOT_DIR

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    [quote author="Dheerendra" date="1410870859"]Did you try giving -qt-xcb to build configuration ?[/quote] I try it and now I can make install it. Why does this problem exist? Will this problem make the application cross-compiling error on Raspberry Pi?
  • QSerialport Problem

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    bq. Which Target serial port does your PC connect to for #3.1? I do not really sure what you asked.., I open the port on the target named "ttyUSB1". bq. Which Target serial port does your PC connect to for #3.2? Use telnet only require ip address, in this test, i used 172.22.100.xx to connect the target board. bq. Which Target serial port does your Program open? "ttyO0" bq. How do you see the error messages for #5.1? How do you see the error messages for #5.2? How do you see the error messages for #5.3? Use the API QserialPort provide. @ MySerialPort->errorString(); @ bq. At first, you said you ran the “Terminal” example, then you said you ran a matrix GUI. Do you run both programs at the same time? Matrix GUI start to run when the board boot up and I have wrote some code that make "Terminal" can be showed on the screen through matrix syntax.
  • [Solved] Detect if device supports touch

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    Thank you much, that helped me.
  • QT 5.3.1 on Linux Arm

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    Hi, how you tell after configure, what compiler to use? Regards, Niko