mouserelease and move events of QWidget is not working

Question

Here i develoed a custom widget to print some shape. But here my MouseRelease and MouseMove event are not working.wh t is the problem of my code. As well as some Asserts ar

Answer 1

In QWidget mouse tracking (when no mouse button is pressed) is not enable by default. To enable it add the following code :

painter->setMouseTracking(true);