I have some trouble with your English, but I think you're asking if it's possible for an application running in a "Guest" operating system (the OS running within a hypervisor) to take a screenshot of the screen of the "Host" operating system (the OS hosting the hypervisor).
Assuming you haven't enabled any functionality in the hypervisor to allow a guest to access the memory of the host (which sounds like a really bad idea for a "feature"), any method by which a guest can access the host, short of using a network protocol (like Chopper3 suggests) is a bug in the hypervisor.
The hypervisor should present a virtual machine to the guest that complete isolates the guest from the host. Any methods to access the host OS from the guest should, ultimately, be the same as if the guest was a separate physical machine from the host.
There are certainly people who would be interested in knowing how to "break out" of a hypervisor and access the host. I'm sure there are bugs in currently shipping hypervisors or hardware that would allow such a thing, since no non-trivial computer program can really be bug free. If you found a way to "break out" of any mainstream hypervisor the "manufacturer" would certainly be interested in knowing how you did it. To my knowledge, no such bugs are common "public knowledge". (Such bugs would represent a major security vulnerability...)