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Qt SpinBox Widget with Scientific Notation

QScienceSpinBox Since I started using Qt over a year ago I have been asking and looking for a Qt widget that can handle numbers in a scientific notation. Unfortunately Qt Software does not offer such a solution nor is it trivial to implement. With the hints I got in some public web forums I implementet the solution provided here. This widget is derived from QDoubleSpinBox. It uses a decimal value of 1000 (that is more...

free Qt Visual Studio Integration

Volker Wiendl has released a new Version of his VsQtAddin Visual Studio Plugin: Download (Version for VS 2005) In case you have a previous installed version uninstall it first, and make sure no component is remaining on the system. You may also run "C:\Programme\Microsoft Visual Studio 8\Common7\IDE\devenv.exe" /resetaddin VsQtAddIn.Connect /Command File.Exit"C:\Programme\Microsoft Visual Studio...

Compilation of Phonon under Windows XP

The original documentation of Trolltech was not sufficient to get me compile the phonon.dll and phonon_ds94.dll under Windows XP. Therefore you find here a description of what I did to get it compile. I use Visual Studio 2005 and the corresponding nmake compiler. The description here thus relates to this compiler. If it works the same with the 2008 Version I do not know. I did not test mingw, but since the Qt docs itself say...

qwt spectrogramm plot with data arrays

The following is a class using the qwt libary to generate a spectrogramm and/or a contour plot. In contrast to the example shipped with qwt it uses a data array instead of a hard coded function. QSpectrogramPlot.h #ifndef QSPECTROGRAMPLOT_H_ #define QSPECTROGRAMPLOT_H_   #include "ExtFunctions.h"   #include <QtGui/QHBoxLayout> #include <QtGui/QWidget>   #include <qwt_plot.h>...

Mathematik mit C++

Nützliche Links… Numerical Recipes Onlineversion des Buches unter http://www.nrbook.com/ Math Tools Mathematische Funktionen in C++ math.h, Standard C library for mathematic...

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