Category: C++/Qt

Qt Compile in Release Mode

When try to running my Qt execution program, I have error message like “the program can’t start because QtCored4.dll is missing…” The Qt file with  “…d..” is a debug file requirement. This error showed, because we compile our code in Debug mode. We need to change our *.pro file to make Qt Compile in Release

Qt : imagesc simple code

I am very interested with imagesc function in matlab. We can plot our data and plot image with user defined colormap. I have try to create a Qt: imagesc simple code using QPainter. This is a simple idea how to create Qt imagesc simple code. You can modified this code like your problem. This code

C/C++ : fftw Tutorial

C/C++ : fftw Tutorial FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input size, and of both real and complex data. I use this library for compute FFT because the library is fast and simple to use.  This is my fftw tutorial. So,

Qt : QScroolArea paintEvent

Qt : QScroolArea PaintEvent I want to create paintEvent in QScroolArea. This is a tutorial how to implement QScroolArea paintEvent method.  I have confused how to create drawingEvent in the QScroolArea. So, after searching and try some of method, I create tutorial  how QScroolArea implement paintEvent. This is the steps how to implemnt QScroolArea paintEvent