Set askforpassworddelay in terminal using defaults

Question

This defaults command is all over the web but is not working for me:
defaults -currentHost write com.apple.screensaver askForPasswordDelay -int 1800
This is probably because the XML tag for the askForPasswordDelay time us <real>.
<dict>
<key>askForPasswordDelay</key>
<real>60</real>
</dict>
I basically want to set the System Preferences/Security Password delay to immediately which would be:
<real>0.0</real>
Just not sure how to do it using the defaults command.
Thank you all!

Answer 1

AFAICT, the default setting for that item when initially setting the Security prefPane to require a password is 0.0, all I can suggest is to delete the plist and reset it. BTW, that plist is unique to each user. Here's mine:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>askForPassword</key>
<integer>1</integer>
<key>askForPasswordDelay</key>
<real>0.0</real>
</dict>
</plist>
See http://developer.apple.com/library/ios/#documentation/Cocoa/Conceptual/PropertyL ists/Introduction/Introduction.html for more details.