Crash using QT WebKit on Windows

aerkis

Hi everybody,

I try to integrate QTWebKit (QT 4.8.2 version) into a new presentations software (http://www.taodyne.com).
It works fine on MacOS and Linux, but when I try to use it on Windows to load the google page, I have a nice crash (see "crash_dump":http://www.taodyne.com/docs/crash_dump.txt).

To do that, I create a QWebView from a QWidget to load a given url:
@QWebView *webView = (QWebView *) widget;
webView->load(QUrl(url));@

Then I convert the widget rendering into a image
@QImage image(widget->width(), widget->height(),
QImage::Format_ARGB32);
widget->setAutoFillBackground(false);
widget->render(&image);@

This image is then converted to be used as a simple texture with OpenGL, which will be mapped later on differents shapes.
@image = QGLWidget::convertToGLFormat(image);
glBindTexture(GL_TEXTURE_2D, id);
glTexImage2D(GL_TEXTURE_2D, 0, 3,
image.width(), image.height(), 0, GL_RGBA,
GL_UNSIGNED_BYTE, image.bits());
@

Any idea what I am doing wrong or why I have this crash ?
Thanks in advance.

NOTE : If you want, you could reproduce easily this crash into the corresponding software. Just download the "free version":http://www.taodyne.com/shop/en/content/9-compare-versions-of-tao-presentations, open a blank document and paste the following code (it loads the google page with a size of 800x800) :
@url 0, 0, 800, 800, "http://www.google.com"@

giesbert

Hi,

in the first code segment, you cast widget types:

@
QWebView *webView = (QWebView *) widget;
webView->load(QUrl(url));
@

what type has widget?

aerkis

As I said just before the code, it's a QWidget (in fact, it's a child of my main QWidget).

sierdzio

You should probably construct it with "new", then.