Question

I’m using QT with opengl to make a chart in order to use it in different simulated physical experiments, but I’m facing the following problem.
I can’t see my chart line unless I minimized my form window and then maximized it, and I should do that all the time as long as my line chart is being drawn in order to get the full result!!
What can I do, this is urgent and I need this chart working properly without minimizing and maximizing.??

Answer 1

It looks like you aren’t doing a repaint until minimize/maximize. I suggest using a timer to get the job done. Posting your code will help!!