But, if I set it to 300000, I get the 5 second default. So, I’m guessing that is out of range. Also note that setting AutomaticDelay sets AutoPopDelay… see the MS documentation.
Maximum delay for tooltip could be 32767 miliseconds (~33 seconds), which is the maximum limit of integer data type. But anyhow it is quite enough to display tooltip text in my application, which is quite higher than 5 sec.