On 03-Aug-12 10:35, Jacob Carlborg wrote:
On 2012-08-03 00:25, Dmitry Olshansky wrote:
OT:
It never ceases to amaze me how people miss this very simple point:
GUI runs on its own thread and shouldn't ever block on something (save
for message pump itself, of course). Everything else (including possibly
slow rendering) done on the side and then result (once ready) swiftly
indicated on GUI.
I'm not entirely sure what you mean be "rendering" but most GUI systems
are not thread safe and all GUI updates need to happen in the same thread.
Draw thing to an off screen bitmap then blit it to window (aye, pass
back to UI thread a reference to the buffer with pixels). This technique
been in use for decades. Imagine drawing some large intricate fractal it
could easily take few seconds.
--
Dmitry Olshansky
