Macro With-Open-Window
(
with-open-window &rest < args > )
Wraps forms such that there is an open window for them to execute in and cleans up the
window afterwards. An error is signalled if there was an error opening the window.
Takes the same parameters as open-window, with the addition of 'title' which will
set the window title after opening.
Wrapped in a block named glfw:with-open-window.