Function 11 - check for event, no wait.
If the message queue contains event, function reads out
and return it. If the queue is empty, function returns 0.
Parameters:
- eax = 11 - function number
Returned value:
Remarks:
- Those events are taken into account only, which enter into
a mask set by function 40. By default it is
redraw, key and button events.
- To wait for event, use function 10.
To wait for no more than given time, use function 23.