It ignores "Rows per page" option:
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Displaying 1 to 10 of 275 found

but get API method is:

Parameters:
Array
(
[output] => extend
[selectMediatypes] => extend
[userids] =>
[time_from] => 1372785704
[time_till] => 1372789304
[eventsource] => 0
[eventobject] => 0
[limit] => 5001
)