display_get_sleep_margin

This function can be used to get the current sleep margin value used for the render timing of your game, and will return a millisecond value. For more information on display timing, please see display_set_timing_method().

Syntax:

display_get_sleep_margin();

Returns:

Real

Example:

if (display_get_timing_method() != tm_sleep)
{
    display_set_timing_method(tm_sleep);
    if (display_get_sleep_margin() != 20)
    {
        display_set_sleep_margin(20);
    }
}

The above code will check the timing method and then if it's not set to tm_sleep it will be set to that and the sleep margin set to 20.