I have a WPF app, where one of the fields has a numeric input box for length of a phone call, called ActivityDuration.
Im using WMPLib to make an easy mp3pla开发者_Python百科yer in C#. Im almost done but theres one more thing I want to do.
I noticed many players display audio track duration before loading the开发者_JS百科 sound file, but I cannot figure out how that is done.
I have a table which logs the userid, course, sessionid and requestdate each time a webpage is loaded.