QImage bind texture fails

[saman_artorious]

I would start with:

Thank you. This solved the problem:

void GlWidget::pixmapCatchFromForm(QByteArray bytes)
{
    image->loadFromData(bytes, "PNG");
    texture = bindTexture(*image);
    qDebug() << texture; // returns 1
    updateGL();
}

void GlWidget::pixmapCatchFromForm(QByteArray bytes)
{
    image->loadFromData(bytes, "PNG");
    texture = bindTexture(*image);
    qDebug() << texture; // returns 1
    updateGL();
}

To copy to clipboard, switch view to plain text mode 

One thing I am very curious about is what keeps the CPU so busy. In my program, I have a timer which triggers every 40 ms, shoots screen and signals it to glWidget which is responsible for creating a texture from that screen shot. The program uses up to 90% of CPU. even without texturing! a simple timer and a screen shot grabWidget function takes up to 90%, I do not understand why!