Unfortunately, I don't believe there are any discrete codes for the power command. The MCE remote has the toggle power button, but that is all that I know of. Maybe someone else has some different info?
Does anyone have the new Microsoft MCE keyboard? Here is a link for those unfamiliar:
[Link: newegg.com]If so, it would be possible to learn the codes from it and use them to control MCE more efficiently. It uses the same IR reciever as the MCE Remote. Below is a list of keyboard shortcuts, some of which provide commands not available with the MCE Remote. If someone could put these into a PCF, that would be great.
Keyboard-only shortcuts:Jump back one page at a time: PAGE UP
Jump ahead one page at a time: PAGE DOWN
My TV: CTRL+SHIFT+T
My Music: CTRL+M
Radio Page: CTRL + A
My Videos: CTRL+E
My Pictures: CTRL+I
Details: CTRL+D
DVD Audio: CTRL+SHIFT+A
DVD Subtitle: CTRL+U
Help: F1
Keyboard shortcuts also available on MCE Remote:Move up: UP ARROW
Move down: DOWN ARROW
Move left: LEFT ARROW
Move right: RIGHT ARROW
Select: ENTER or SPACEBAR
Start Media Center: Windows logo key+ALT+ENTER
Go back to the previous screen: BACKSPACE
Backspace a single character in Search: BACKSPACE
Change to a specific channel: The number for the channel you want
Move up one channel: EQUAL (=) or CTRL+EQUAL
Move down one channel: MINUS (-) or CTRL+MINUS
Live TV: CTRL + T
Recorded TV: Ctrl + O
Guide Page = Ctrl + G
DVD Menu: CTRL+SHIFT+M
Record: CTRL+R
Pause: CTRL+P
Play: CTRL+SHIFT+P
Stop: CTRL+SHIFT+S
Replay: CTRL+B
Skip: CTRL+F
Rewind: CTRL+SHIFT+B
Fast Forward: CTRL+SHIFT+F
Mute: F8
Volume Down: F9
Volume Up: F10