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A group for the Indian Qt Developer community. To learn, discuss and showcase Qt apps, ask questions, troubleshoot and help each other. All other members are also welcome to join.
Founder: Deleted Member # 4a2
Members: 635
Category: Regional
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This is an overview of the latest updated topics, visit the full forum here.


Welcome to Qt India Group and Forum

by: Deleted Member # 4a2 | Views: 7570 | Forum: India | Last post by Rathnadhar, August 20, 2014

The basic rules of the Devnet forum also apply to this group/forum.

See http://developer.qt.nokia.com/wiki/ForumHelp [developer.qt.nokia.com]

Small note: There are infinite possibilities that mobile apps can achieve to the Indian people and the environment here. The field is totally untapped. Nokia is the leading mobile device player here and Qt is the best possible cross platform development framework probably available.

This group has just been created and look forward to more activities here.

  • Learning Qt
  • Troubleshooting
  • Wiki articles
  • Brainstorm your ideas

Open for your ideas …


qt giving the ld error

by: Nilesh Prakash Kokane | Views: 119 | Forum: India | Last post by Nilesh Prakash Kokane, August 9, 2014

Hi ,

Based on the url http://wiki.wandboard.org/index.php/Building_Qt5_using_yocto_on_Wandboard

bitbake core-image-minimal and bitbake meta-toolchain-qt5

Both gave me success.

But after setting the qt creator and running the example clocks code its giving me the ld errors as follows

09:41:15: Running steps for project clocks…

09:41:15: Configuration unchanged, skipping qmake step.

09:41:15: Starting: “/usr/bin/make”

arm-linux-gnueabi-g++ -o clocks main.o qrc_clocks.o -L/opt/poky/1.6.1/sysroots/cortexa9hf-vfp-neon-poky-linux-gnueabi/usr/lib -lQt5Quick -lQt5Qml -lQt5Network -lQt5Gui -lQt5Core -lGLESv2 -lpthread

/usr/lib/gcc-cross/arm-linux-gnueabi/4.7/../../../../arm-linux-gnueabi/bin/ld: cannot find /lib/libpthread.so.0 inside

/usr/lib/gcc-cross/arm-linux-gnueabi/4.7/../../../../arm-linux-gnueabi/bin/ld: cannot find /usr/lib/libpthread_nonshared.a inside

collect2: error: ld returned 1 exit status

make: *** [clocks] Error 1

09:41:15: The process “/usr/bin/make” exited with code 2.

Error while building/deploying project clocks (kit: wandboard)

When executing step ‘Make’

09:41:15: Elapsed time: 00:00.

I’ve assuared that the set up in the Configure Qt creators OK , but its still giving the error.

can you suggest me for that.


Qprinter receipt issue

by: saravanavelu39 | Views: 72 | Forum: India

Hi all,
This is my code

  1. QESCPOS printer("/dev/ttyUSB0");
  3.     printer.open(QIODevice::ReadWrite);
  4.     printer.autoConfig();
  6.     /*printer.setBaudRate(BAUD19200);
  7.     printer.setFlowControl(FLOW_HARDWARE);
  8.     printer.setParity(PAR_NONE);
  9.     printer.setCharacterCodeTable(QESCPOS::CCT_PC850);
  10.     printer.setInternationalCharacterSet(QESCPOS::ICS_CHINESE);
  14.     printer.initialize();*/
  15. //    printer.cutPaper(true, 0);
  17.     /*QList<QImage> l;
  18.     l.append(QImage("/home/qdot/Downloads/logo.png"));
  19.     printer.defineNVRaster(l);*/
  21.     printer.write("Test: 大虾多士\n");
  22.     printer.cutPaper(true, 0);

in here i need to display (” Test: 大虾多士\n”) in the receipt,,please give me a suggesstion


Want to set up Qt5 for developing application in Wandboard

by: Mayur Gaikwad | Views: 1102 | Forum: India | Last post by Mayur Gaikwad, August 4, 2014

Hi All,

I am working on Wandboard Solo. I am developing my application in Ubuntu for that i want to set up Qt5 for wandboard. I learn how to create new project using Qt Creater, but i am getting stuck at qmake configuration. I am not able to define qmake configuration on wandboard. I want to set up crosscompiler in Qt creater which can compile & gives suitable output file for Wandboard.

I tried to go thru the link “http://wiki.wandboard.org/index.php/Setup_QT_creator_for_developing_QT_apps_on_wandboard”. but i am not understanding the part “Export the qmake variables to QT Creator 3.0” that how the qmake configuration is set for Wandboard & how the path “/build/tmp/work/cortexa9hf-vfp-neon-mx6-poky-linux-gnueabi/qtbase/5.1.1- r0/build/config.summary” will created.

Can someone suggest the steps to set up Qt5 for Wandboard in detail?

Mayur Gaikwad


How to create own dll in qt

by: saravanavelu39 | Views: 76 | Forum: India | Last post by p3c0, August 4, 2014

Hi All,

I need to create the setup file,,,so how to create the own dll in qt,,please send me a some suggestion for createing the dll file,, Thanks

Qt for QNX

by: dinakar510 | Views: 68 | Forum: India


We are facing an issue with Qt for QNX. We have couple of requirements to use Qt on QNX RTOS. If any one please kindly help me on how to go on towards my below requirements.

1) Can I run Qt Application on QNX with Photon Enabled instead of Shell Environment.
2) Can I see debug/print statements which are part of my application on the QNX Terminal when I click any button in my application.

Requesting anyone to help with the above two.

-Thank You.


How to delete widgets from Qvboxlayout

by: saravanavelu39 | Views: 62 | Forum: India

Hi friends,

i am facing the one issue,,how to delete all widget from qvboxlayout in Qt,,After deleteing the widget i need to add some widget in the same Qvboxlayout,,now i delete the widget from Qvboxlayout,,and after that i add the new widget means Qvboxlayout take more spaces between the two widgets,, In below i added the code for deleting the widget from layout
  1.         while ( ( item = rightui->listLayout->takeAt( 0 ) ) != NULL )
  2.         {
  3.             if (item->widget()) {
  4.                 qDebug() << "item widget: " << item->widget();
  5.                 delete item->widget();
  6.             }
  7.             delete item;
  8.         }
Please Give me a good solution for this,,,Thanks

Chinese Character in Qt

by: saravanavelu39 | Views: 67 | Forum: India

Hi friends,

I have one problem in chinese character using in qt,, in the application window chinese characters are displayed correctly,,But when i take the receipt from the printer chinese characters are merged,,please give me some suggestion,, Thanks

[EDIT: Closing thread. Duplicate of http://qt-project.org/forums/viewthread/45726/JKSH]


Want to configure Qt5 for Wandboard-solo board

by: Mayur Gaikwad | Views: 76 | Forum: India

As we are very new to Qt, we want to configure Qt5 for Wandboard-solo board. We haven’t know how to set up compilers, Kits, debuggers, & Qt versions for Wandboard.

Please provide detailed steps & procedure to do this.

Also, please share the link if in case it is already available on this forum.

As we have very specific time span for our developement, please reply as soon as possible.



AdvanTRAK Qt for QNX

by: dinakar510 | Views: 141 | Forum: India | Last post by dinakar510, July 24, 2014

AdvanTRAK Technologies provide support on Qt for QNX RTOS.

Link points you to the page from where you can get Demo of Qt on QNX.
Qt for QNX [community.qnx.com]

-Thanking You.
AdvanTRAK Technologies.
Contact: Jagan — 9901200358

This is an overview of the latest updated topics, visit the full forum here.