Hello!
I use WMemoryResource and WImage to render dynamically generated images.
Then, I use WTimer to generate time events once per second and need to
update WImage picture in the timer callback. I do it like this:
initialization:
res = new WMemoryResource("image/jpeg");
img = new WImage();
timer callback:
res->setData(img_data_ptr, img_data_size);
img->setResource(res);
The problem with this code is that very rearly I get application crashs
somewhere under WMemoryResource::handleRequset and sometimes I don't see the
image in the brouser. I guess is that it should be some concurrency issue,
but as I undestand it should safe to update any Wt object from a
WTimerCallback, so I was wondering if I should use some different method?
Thanks.
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