General and Desktop

Hi, @m_NetworkManager = new QNetworkAccessManager(this);@ Should be in RestClientCore constructor. You are creating a new QNAM each time you call ConnectToServer and never delete the old one.

There are several possibilities, keep a list of your points, update it and redraw them all. Use a QPixmap, draw each new point on it then just draw this pixmap in your widget. Or look at e.g. Qwt which provides facilities for that kind of drawing.

Here is output from gst-launch-0.10: @ Failed to create secure directory (/run/user/1000/pulse): No access ERROR: from element /GstPlayBin:playbin0/GstDecodeBin:decodebin0/ffdec_aac:ffdec_aac0: Could not decode stream. Additional diagnostic information: gstffmpegdec.c(2213): gst_ffmpegdec_audio_frame (): /GstPlayBin:playbin0/GstDecodeBin:decodebin0/ffdec_aac:ffdec_aac0: Decoding of AAC stream by FFMPEG failed. @ ADD: Installed gstreamer0.10-plugins-bad solved problem. Thank you for help.

You may use static member function and pass a pointer of the object to the function. @ class Foo { ... void handleEvent() {} static void cbHandleEvent(void* ptr) { Foo* obj = static_cast<Foo*>(ptr); obj->handleEvent(); } ... }; typedef void (TSetCallbackFunc)(void (callback(void)); @ If replace void with Foo* then you don't need static_cast. or you can pass a member function and a pointer to TSetCallbackFunc but it depends on details of TSetCallbackFunc design. @ class Bar { ... void handleEvent() {} ... }; typedef void (TSetCallbackFunc)(Foo ptr, void (Foo:: *callback()); @

QDbusAdaptor is maybe an obsolete class. In that case, it should be declared as such.

Oh, sorry. Qt 4.8, and this program is supposed to run on raspibian(debian). Linux raspberrypi 3.12.22 D-Bus Message Bus Daemon 1.6.8

http://qt-project.org/doc/qt-4.8/multimedia-videowidget-videoplayer-cpp.html u can see this code my code is lil bit same

OK I'm glad you solved your problem. Please edit the title and prepend [SOLVED] so that reader know this issue is closed.

SGaist. Thank you so much. Inserting the path as you suggested and inserting this: @CONFIG += c++11@ into the project file worked. I really appreciate your support! Thank you!

Thank you so much. Is there any websites I can follow to get the steps for the process?

thanks Dheerendra, I want to have access to the property through the design Mode. Can you give me a sample or video that I know better , please.

Thanks sierdzio I will give QSettings a go. Seems simple enough.

I tried to run ChrisW67's code with success on Qt 5.2.1. Soon I will run it on 4.8.6.

Dear ArbolOne, No, there are no such problems in Netbeans. It can use the compiler provided by Qt (32-bit) just fine. I am assuming that you are building a Win32 GUI application. Do you see a -Wl,--subsystem,windows in the build output windows in the linking step? Netbeans may have assumed a Console application by default ?? Have not used Netbeans 8 for Qt yet. But I did notice a problem using Netbeans 7 with Qt 5.x. Qt 5.x needs a QT += widgets in the .pro file. Netbeans 7 build automatically re-generates pro file and there is NO MEANS of specifying this option. So GUI programs did not build correctly! No such issues using Netbeans with QT 4.x

No I am not, but I did find the problem. In VisualGDB when I do a quickwatch on the object (a string in this case), it does not show the single quotes, but if I check the length of the string, it does account for two single quotes. Rather strange... Thanks so much for the quick response.

Thank Jeroentje, I just update photo

No, it is handcoded and it is a large app, so I cannot share the exact code. But I will try to compile a simple example.

Well usually valgrind throws those type of errors when the memory for an object has been cleaned off the stack. It looks like you are using stack variables since you said QMutex.lock() and .unlock() rather than ->lock(), ->unlock(). My guess is your QMutex is out of scope. If that's the case then you are just getting plain lucky on the memory and mutex working at all. But that is what valgrind is for is to catch problems like that. :)

No it doesn't download for you, at least I don't think it does. I always build Qt myself. Anyway, you will probably need to get a copy of it. You do not need to buy it though. You will need a license but you just get that automatically on install with a valid email address. You can download Visual Studio Express from "here":http://www.visualstudio.com/en-us/products/visual-studio-express-vs.aspx . Express is the free version. Be careful when you download and read everything. Like most things they try to trick you into the professional version trial so you then think you have to buy it later. Just make sure you stick with "express" not "pro" and the free option during the download process and you should be good to go. Sorry you have to work with MSVC. ;)

What compiler/environment are you using?