How to convert EImage into QImage and show it in a QWidget?

[FloFox]

Thank you anda_skoa,

I used your first advice and it's working.

store the image and call update() and draw in paintEvent

So this is my new code.

void MainWindow::paintEvent(QPaintEvent *)
{
    QPainter painter(this);
    painter.drawImage(QPoint(0,0),currentImage);
}
 
void MainWindow::ProcessingCallback(Channel &Ch, SignalInfo &Info)
{
    try
    {
        // Update the eVision image with the acquired image data
        UpdateImageConfig(*Info.Surf, EImgSrc);
 
        // Inversion between the first and the third color component of each pixel component (EImage is BGR coded)
        for(INT32 x=0; x<EImgSrc.GetWidth(); x++)
        {
            for(INT32 y=0; y<EImgSrc.GetHeight(); y++)
            {
                EC24 pixE = EImgSrc.GetPixel(x, y);
                UINT8 temp = pixE.m_un8C2;
                pixE.m_un8C2 = pixE.m_un8C0;
                pixE.m_un8C0 = temp;
                EImgSrc.SetPixel(pixE, x, y);
            }
        }
 
        // Convert EImage to QImage
        QImage newImage((const uchar*)EImgSrc.GetGenericImagePtr(), EImgSrc.GetWidth(), EImgSrc.GetHeight(), QImage::Format_RGB888);
 
        // Display the new image
        currentImage = newImage;
        this->update();
 
    }
    catch (Euresys::MultiCam::Exception &e)
    {
        // Display the exceptions...	
    }
}

void MainWindow::paintEvent(QPaintEvent *)
{
    QPainter painter(this);
    painter.drawImage(QPoint(0,0),currentImage);
}

void MainWindow::ProcessingCallback(Channel &Ch, SignalInfo &Info)
{
    try
    {
        // Update the eVision image with the acquired image data
        UpdateImageConfig(*Info.Surf, EImgSrc);

        // Inversion between the first and the third color component of each pixel component (EImage is BGR coded)
        for(INT32 x=0; x<EImgSrc.GetWidth(); x++)
        {
            for(INT32 y=0; y<EImgSrc.GetHeight(); y++)
            {
                EC24 pixE = EImgSrc.GetPixel(x, y);
                UINT8 temp = pixE.m_un8C2;
                pixE.m_un8C2 = pixE.m_un8C0;
                pixE.m_un8C0 = temp;
                EImgSrc.SetPixel(pixE, x, y);
            }
        }

        // Convert EImage to QImage
        QImage newImage((const uchar*)EImgSrc.GetGenericImagePtr(), EImgSrc.GetWidth(), EImgSrc.GetHeight(), QImage::Format_RGB888);

        // Display the new image
        currentImage = newImage;
        this->update();

    }
    catch (Euresys::MultiCam::Exception &e)
    {
        // Display the exceptions...	
    }
}

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With

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QMainWindow>
 
#include "EasyMultiCam.h"
 
using namespace Euresys::MultiCam;
using namespace Euresys::eVision::EasyMultiCam;
 
class MainWindow : public QMainWindow
{
    Q_OBJECT
 
public:
    MainWindow();
    EImageC24 EImgSrc;
    QImage currentImage;
    // ...
 
public slots:
    void ProcessingCallback(Channel &Ch, SignalInfo &Info);
   // ...
 
private slots:
    void paintEvent(QPaintEvent *);
   // ...
 
};
 
#endif // MAINWINDOW_H

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>

#include "EasyMultiCam.h"

using namespace Euresys::MultiCam;
using namespace Euresys::eVision::EasyMultiCam;

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow();
    EImageC24 EImgSrc;
    QImage currentImage;
    // ...

public slots:
    void ProcessingCallback(Channel &Ch, SignalInfo &Info);
   // ...

private slots:
    void paintEvent(QPaintEvent *);
   // ...

};

#endif // MAINWINDOW_H

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Thank you again for the efficiency of your advices.

Bye!