C++ (Cpp) QGLWidget::updateGL Examples

Example #1

File: medGlobalDefs.cpp Project: Inria-Asclepios/medInria-public

GPUInfo gpuModel()
{
    // just fill it once, we are not going to change GPU on the fly
    static GPUInfo gpu;
    if (gpu.renderer.isEmpty()) {
        // glGetString requires a valid OpenGL context, the easiest way is to
        // create a bogus QGLWidget and force a render.
        QGLWidget glw;
        glw.updateGL();
        gpu.renderer = QString::fromLocal8Bit(reinterpret_cast<const char*>(glGetString(GL_RENDERER)));
        gpu.version = QString::fromLocal8Bit(reinterpret_cast<const char*>(glGetString(GL_VERSION)));
        gpu.vendor = QString::fromLocal8Bit(reinterpret_cast<const char*>(glGetString(GL_VENDOR)));
    }
    return gpu;
}