[Xcb] Figuring out how events differ in XCB compared to Xlib

[Travis Spencer]

I need to figure out how events differ in XCB from Xlib.  Any
suggestions on which code or docs I should be reading to get up to
speed?  I've been reading the mailing list archive, but nothing is
jumping out at me.

Specifically, I have some Xlib code that uses an XEvent type.  Is
there a one-to-one mapping to an XCB type?  Is it the same as
XCBGenericEvent?

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Regards,

Travis Spencer