Mounting disk images

FROM : Development
DATE : Sat Jan 19 18:05:38 2008

I've been looking through the disk arbitration framework and disk 
recording hoping to find an answer but it's not readily apparent I've 
also looked on the developer site but it only talks about hdid. I want 
to mount a disk image without it appearing on the desktop similar to 
the way that a filevault image mounts. So my question is, Am I 
pursuing a wild ornithopod without due cause? Or is it possible to do 
this.
The reason for this is I am trying to create an application with high 
security and for it's tmp files  and other such things, it will use a 
128 bit(on 10.4) 256bit (on 10.5) encrypted disk image but I was 
hoping for it to not look messy with images appearing on the desktop. 
Also with it mounting these things on the desktop it does kind of cut 
the security a lot... the other choice of course it to gpg every file 
as it is created but I kind of wanted to avoid that as it either 
requires me to include gpg as part of the package or require it's 
installation prior to security being made available.