I have a Doubt with File Streams
I’m learning Qt reading a book, and I have installed Qt creator on Linux. This is my first example than probe in Qt. I have this code Qt about file streams: //#include <QCoreApplication>...
View Article3x2 image grid with zooming+hiding
Hello. I have been thinking about a couple of days on how to implement this, so far I have tried a couple of approaches, but I wanted to see if someone more knowledgeable can give be a couple of hints...
View ArticleReseting QML file
Hello Qt community, My idea is that I would like to put the .qml file in beginig state after onclick event. It is good for refresing data after changes in database. Can it be done in QML or I must go...
View ArticleVery strange errors when building a Qt project in MSVS
Hello! I have a very strange problem that makes me completely puzzled. I’m working in MSVS 2012 with the Visual Studio Add-in 1.2.2 installed, and in my project I’m using Intel’s Perceptual SDK. So I...
View ArticleQTabWidget icons without rotating
Howdy, I’m using QTabWidget as a sidebar for my application (similar to Qt Creator sidebar) so I set TabPosition to the East with empty labels but the icon of tabs appear rotated 90deg. How can I show...
View ArticleQGraphicsView vs custom QWidget
Hi, I wish to develop a custom widget. I am confused between using a custom QWidget handing the QPaintEvent, that draws on the window and a QGraphicsView+QGraphicsScene based implementation. In which...
View ArticleMS SQL Server and QT: get Signal in QT Aplication when Data in SQL Server...
Hallo, I want to connect my QT Programm with a MS SQL Server Database. This works allready, I can read and write into the Database from my application. Now I want to get informed in my QT Application,...
View Articlecan't remove a tab from QTabWidget
this code is inside a function “the fuction is a solt of a menu button” int i=2; ui->tabWidget_3->removeTab(i); i++; //some code while(..){ //... } the thing is when i insert a break...
View ArticleOpengl world coords change on camera rotation
Hi, I build own gluUnProject, but I have big trouble with camera, when I rotate camera, world coords are changed and are incorrect. When I just start app, my Z coordinate is incorrect, when I turn...
View ArticleQt 5.1, Qwt 6.1, on Windows gives undefined reference to Qwt::function()
Well I feel like a real newbie. This problem should be obvious to me but I have not been able to solve it. and my tired old brain is just not seeing it. TEMPLATE = app TARGET = qmmvari...
View Articleproblem when debugging
hello im whit a program tha is from a university and have some error like. SerialPort.h: no such file or directory the project y about a 6 dof arm with arduino that it’s manage by this simulator but y...
View Articletoo smart qmake
I have a header in project: //fn_names.h #define FN_NAME foo #define FN_WNAME wfoo And c-file where is foo/wfoo implemented as: //foo_impl.c #include "fn_names.h"...
View ArticleEmbedded Linux - Autostarting QT from a script
Hi, I’m using Qt Creator 2.4.1 to create the QT app for my TI AM335x target. I have a good version of my QT app and would like it to start-up automatically. I have created a script S99myApp.sh and...
View ArticleQt sem ponteiros
é possível trabalhar com a api Qt sem usar ponteiros? Object obj; obj.get() ??
View ArticleProblem compiler Qt 4 Designer in linux
Hi today, I’ve start the programming in linux I’ve a problem, I find not the compiler and for create a new scrips in my project such as (*.cpp). thank you
View Article如何在quick control中改变button上的显示文字的颜色.
如何在quick control中改变button控件上的显示文字的颜色.我看到button控件在设计窗口中的属性栏中有颜色选项,但是修改后,button上显示的文字的颜色没有改变,还是黑色的.不知道哪位高手可以解答下.或者通过代码如何更改颜色.
View Articlehow to change the display text of the button ,in quick control ?
How to change the display button controls on the color of the text in the quick control. I see a color options in the design window in the properties toolbar controls in the button, but the revised,...
View Articlearduino + qt creator
hello im new on this. im looking for someone that knows about using arduino with an app from qt creator. i hace the soft but i cant run it because some problems, thanks a lot
View ArticleQwebView Qprinter and pdf
I am trying to create a pdf out of my webview, even for simplest html something like this, printer does not save pdf with full page having blue bg color, only hello world has bg color blue rest of the...
View ArticleMySql e PDF
Pessoal, Preciso de uma ajuda preciso pegar os dados de um select e jogar em um pdf. Os dois separados consigo fazer normalmente, ou seja criar um pdf com dados “fixos” vai tranquilo e fazer a conexão...
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