Feature request : Upon program exit make the GUI not close itself until...

[EskimoBob]

https://bitcointalk.org/index.php?topic=76636.msg929949#msg929949
LoWang writes: "Upon program exit make the GUI not close itself until the program completely ends! Because it usually takes over 30seconds until the process ends, so you cannot switch off the computer until this or cannot restart the client until the previous instance really ends which you can see only in task manager. This is a bit confusing and there is a potential risk of data files corruption IMHO..."

[Someguy123]

Old bug is old, though I'd love to see this added, I've heard a lot of people screwing their wallets or blockchain up, mostly because they never bother to check their taskmgr and realize it's taking a while to "finish closing" in the background.
With a window that warns "Closing wallet and blockchain handles, please wait until this window has closed before attempting to access them", that would reduce the amount of people who completely screw up their wallets by doing this.