5590065c3f643" title="Defer execution of a function to the main thread if (and only if) your function is executing in the s...">defer()</a> is if your object implements a read message to ask the user for a file. Opening the dialog in the timer thread and waiting for user input will likely crash, but even if it didn't, the scheduler would effectively stop.</p>
<p>To use <a class="el" href="group__threading.html#gaa24a0c9896f1ad241e45590065c3f643" title="Defer execution of a function to the main thread if (an