response_type
The type of this event, in this case XCB_EXPOSE. This field is also present in the xcb_gener‐ic_event_t and can be used to tell events apart from each other.
sequence The sequence number of the last request processed by the X11 server.
window The exposed (damaged) window.
x The X coordinate of the left-upper corner of the exposed rectangle, relative to the window's
origin.
y The Y coordinate of the left-upper corner of the exposed rectangle, relative to the window's
origin.
width The width of the exposed rectangle.
height The height of the exposed rectangle.
count The amount of Expose events following this one. Simple applications that do not want to opti‐
mize redisplay by distinguishing between subareas of its window can just ignore all Expose
events with nonzero counts and perform full redisplays on events with zero counts.