Default android power menu

anybody know a way to bring up the power menu, like when you longpress the power button with code/shell commands? I tried keyevent but I can't get it to work. I know keyevent 26 is the power button but how to invoke longpress keyevent 26. I tired keyevent 1026 and keyevent 2026, but both of these just shut the screen off.

LG G2 L-01F with tapatalk pro