How the Swt Shell maximizes the code I requested!

gsylthj

Adding Listener will execute the system default code before executing my code

My requirement is: the system code does not execute, execute my code directly,
Discard the original event after similar event interception

glow_wy

That's only hard work you are there
while(!shell.dispose()) {
}
In this loop, monitor each object to determine if any event has occurred.
At the same time handle the corresponding event.