[Interest] QGLContext::makeCurrent(): Failed. Why?

[Guido Seifert]

> You should clean up your textures BEFORE calling toImage().

Does not make any difference if I clean up before or after. It is interesting and annoying that there is a warning I don't understand,  but I suppose I can ignore this problem for the moment.

I create a QGLPixelBuffer on the heap:

QGLPixelBuffer *buffer = 
  new QGLPixelBuffer(mStartImage.width(),mStartImage.height());

Add some textures:

mStartImageTexture = buffer->bindTexture(mStartImage,GL_TEXTURE_2D);

Do some OpenGL stuff, get the image, and last delete the buffer:
delete(buffer);

So if I am not missing vital information, e.g. that the OpenGL libs do something funny, I suppose I won't have a memory leak even if I do not delete the textures explicitly. At least it does not look like I have one and the docs say:

QGLPixelBuffer::~QGLPixelBuffer () 
Destroys the pbuffer and frees any allocated resources.


Guido