* Clarify video capture method
* fix improper level of pointer usage of xcb_generic_error_t
* add ffi of xcb_shm_query_version
* throw a warn about MIT-SHM not working
* add missing #[cfg]
* checks SHM validity on the fly, rather than cache on creation
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Co-authored-by: root <root@localhost>
Co-authored-by: rustdesk-fork <rustdesk@fork.com>
c97cc15c0e