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• Printing complex widgets in Qt

  - by Jens

  I have a complex widget with tons of different subwidgets, e.g. subclasses of QLabel. I want to print this widget, but obviously I do not want to print the background, I want to print with differing text colors or have the style of frames slightly modified. As I do not really want to iterate through all subwidgets with a special "print" function,…

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• Data loss when converting from QString to QByteArray

  - by SleepyCod

  I'm using QPlainTextEdit as an HTML editor, saving the data through an HTTP post with QNetworkAccessManager. I experience data loss when using HTML special characters such as & (ampersand) I'm building a POST request with a QByteArray (as mentioned in the docs). QByteArray postData; QMapIterator<QString, QString> i(params);…

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• Qt - serialize/deserialaize text plus picture

  - by Narek

  I want to use a field (kind of QTextEdit), which is capabale of storing picture and text (like MS Word is doing) and it serializes and deserialaizes picture+text data. Is there any Qt Widget that allows us to manipulate with picture and text simultaniously and it has set/get functions which operate with serializable type? In othger…

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• Getting values from pro files in Qt

  - by user249490

  Hi, I am using Qt 4.5 in Windows XP. My pro file has the variable VERSION = 1.0. Now i need to read this variable and get its value (1.0) from the source code. So that I don't have to maintain another variable for version inside my source code. I just read from the pro file and update it. So that the value remains consistent all…

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• Background image not showing on Qwidget

  - by sijith

  HI, i am designing a window using QWidget and set a background image, when i run my code i am not getting background image but showing window with default background. Can anyone help me what may be the reason.

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• QLable: set color of text and background

  - by Regof

  How do I set color of text and background of a QLabel?

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• Qt Direct Connection

  - by user152508

  Hello I have created Qt tree control( and its nodes ) in different thread than the main thread. In the main thread I want to show context menu for the clicked node, so I am connectiong the actions in the menu with appropriate slots in the main thread. The connect function returns true , but slot is never executed. If I…

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• how to add menu dynamically in Qt

  - by Solitaire

  Hi, I want to add, submenu to a menu item dynamically. How can I achive this? I tried like this, I have created an Action and submenu. Then I have added the submenu to action. But, I have connected the “triggered” signal of action. its getting crash if I click on the action.. I have also handled the “aboutToShow”…

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• Need QT Creator Source files

  - by Archita

  I want to create a similar GUI as QT Creator main layout and thus I am looking for QT Creator Source files. Can anyone direct me from where to download. Thanks in advance.

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• Execute Slot in different class

  - by sijith

  Hi, I want to execute a slot in different class. Is it possible UI_CDSK Obj; connect(Obj.penDrive,SIGNAL(clicked()),this,SLOT( Obj.caller())); This code is in different class and from this class i want to execute slot of different class(UI_CDSK ) Here penDrive and caller belongs to function UI_CDSK class and the…

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• how do I specify in qmake 4.5's .pro file that i want to ignore a library in msvc8 (2005)

  - by lgwest

  I have a linking problem. It can be solved by specify in msvc8 project properties - Linker - Input - Ignore Specific Library: msvcrtd.lib. That library conflicts with libcpmtd.lib. But can't find how to do the same thing in qmake's .pro file that is used to generate the .vcproj file. Grateful for any hint /LG

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• GUI by using Qt

  - by kishorebjv

  hi all... i dont know any thing about Qt other than my friend told that it generates the GUI for c++ code.... please let me know 1.How to execute some command when a button in window is clicked..? "g++ encryption.cpp -lgmp" command should be executed when i pressed "enc" button.. 2.How to accept the text from…

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• How to open file and Directory in QT

  - by sijith

  Hi, I want to open Directory and file using the same function. Is it possible to do the same in QT. I used QString directory = QFileDialog::getExistingDirectory(this, tr("Open Directory"), "", QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks); Here i can open only directory. How to…

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• Is there a way to be notified when a property changes in a QObject?

  - by darkadept

  First off, I'm using Qt 4. Is there a way to be notified (signal, event, ?) when a property (dynamic or otherwise) changes on a QObject?

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• Type-aware rendering (and editing) of tabular data in pyqt4

  - by pihentagy

  I would like to have a very short / minimal example of how to create some tabular widget with different types of item in it. In the first round let's say I'd like to render [["Hello", 12, True], ["World", 13, False]] (Hello as string, 12 as number (right-align), True as a checkbox for eg.), but it would be nice…

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• QWinWidget's position is always 0 (zero)

  - by Kevin

  I hosted a QWinWidget in a CView and want it to stay at a designated position when resizing. But QWinWidget always moves to (0, 0), i.e. left-top corner of the CView. I tried to debug in this way: QWinWidget* pWidget = new QWinWidget(pCView); pWidget->move(50, 50); QPoint pos = pWidget->pos(); Note…

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• Give labels in Qt Forms

  - by Ann

  How can I set a label in Qt Ui forms.

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• Best way to get a query result

  - by xgoan

  I'm developing an application that gets large images from an Internet server which is the best way to download this images, without freeze the entire application? I mean background download. I have thought about download it in another thread.

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• How to get decimal value of a unicode character in c++

  - by Mugunth

  For one of my opensource project, i need to compute decimal equivalent of given unicode character. For example if tamil character "?" given, output should be 2949 . I am using c++ in Qt environment. I googled and couldnot find a solution for this. Pls help if you know a solution for this.

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• dumpbin equivalent in Qt

  - by de costo

  Is there any utility similar to dumpbin(Visual Studio) in Qt that allows me to check the functions that are exposed in a Qt-Creator compiled dll ?? I need to know what methods are exposed in a given dll so that I can load the method dynamically at runtime using QLibrary. Thanks, De Costo

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• how to change headers data

  - by Moayyad Yaghi

  hello i have the following class class AssetTableModel(QtCore.QAbstractTableModel): def init(self,filename=''): super(AssetTableModel,self).init() self.fileName=filename self.dirty = False self.assets = [] …

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• compiling maya (3d application ) with qt

  - by knishua

  including the maya ( 3d application ) classes in qt program gives lot of errors..... i have added all required include paths and libs...the same problem persists .... this is pro file for my qt project TARGET = FileCon TEMPLATE = app SOURCES +=…

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• Qt -how to know whether content in child widgets has been changed?

  - by Narek

  In QMainWindow I have 2 QSplitters. In that splitters I have QTextEdit, QLineEdits, QTableWinget, Ragio buttons and so on... I want to know if somthing has been chaged after pressing File-New menu button. Is there any general method for doing…

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• what property should i set to Fit the text in label

  - by Shadow

  Hi, i want to display a big string in Qlablel for this simply i have created a label in Qt GUI editor, then i put the string, with the Wordwrap property ON. here text is not coming to the next line itself, instead its crossing the view…

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• Adding an inheritance to an Qt designed object

  - by Jaguar

  Hello, I have a problem and I want to implement the MVC pattern to my QT application, that's why I need for example to inherite in my QTableWidget about another class like myClass { myMethod(); } but our QTableWidget is…

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