The type on "Ptr" doesn't actually affect what's inside; it's a convenience
for programmers. The functions that do things with XEvents just read bytes
from the Ptr's location.
On Tue, Nov 6, 2018, 10:36 Guru Devanla Hello Haskell-Cafe, I have been recently studying the XMonad code and some related types
available in the X11 bindings library. I came across this type: newtype XEvent = XEvent XEventPtr type XEventPtr = Ptr
http://hackage.haskell.org/package/base-4.10.1.0/docs/Foreign-Ptr.html#t:Ptr
XEvent
http://hackage.haskell.org/package/X11-1.9/docs/Graphics-X11-Xlib-Event.html... Available here: http://hackage.haskell.org/package/X11-1.9/docs/Graphics-X11-Xlib-Event.html... It seems that this type is circular here. how does one use this type? Is
it possible to create a value out of this type? What is the use of this
type? Please could someone help me wrap my head around this? Thanks _______________________________________________
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