Qt programname.exe exited with code -1073741819 How can I fix this?

Question

I am trying to integrate Qt with OpenCV.

Here is the example: http www opendesktop org/content/show.php/Qt+Opencv+webcam+viewer?content=89995

But the function:

 putImage(IplImage* cvimage)

is giving exit error code: 1073741819, wherever following..:

 cvimage->depth

.. is being used.

How can I prevent this error occurring?

Answer 1

The error number you quote in hex is 0xC0000005 which indicates an access violation in windows. An access violation means your process has tried to access memory (ie dereference a pointer) that does not belong to it. Most likely cvimage is not a valid pointer and hence dereferencing of that pointer causes your error.

Edit: A Stack overflow will cause the application to exit suddenly.

See this article for an explanation of how to write an exception handler that will tell you what the crash was.