Arguments:
Description:
Wait for a given delay (in ms), optionally since the last call to
wait.
or wait for a user event occurring on the selected instant display windows.
delay can be
{ <0=delay+flush events | 0=event | >0=delay }.
Command selection (if any) stands for instant display window indices instead of image indices.
If no window indices are specified and if
delay is positive, the command results
in a
hard sleep during specified delay.
Default values:
delay=0.