{"id":5189,"date":"2018-08-15T01:51:22","date_gmt":"2018-08-15T08:51:22","guid":{"rendered":"https:\/\/www.coretechnologies.com\/blog\/?p=5189"},"modified":"2018-08-15T01:51:22","modified_gmt":"2018-08-15T08:51:22","slug":"refresh-session-0","status":"publish","type":"post","link":"https:\/\/www.coretechnologies.com\/blog\/alwaysup\/refresh-session-0\/","title":{"rendered":"Q & A: My VB6 App Doesn’t Refresh in Session 0 \u2014 Help!"},"content":{"rendered":"
\n  We have a VB6 application we’re running as a service in AlwaysUp<\/a> on Windows Server 2012 R2. When we run the application outside of AlwaysUp, the form refreshes fine. When we run the application in AlwaysUp, it can sometimes take several minutes for the form to refresh, starting out as a black form (see screenshot of Session 0 below). Any recommendations you might have to help with the refresh rate would be appreciated, thanks.<\/p>\n
\"Application<\/a><\/div>\n

— Jim Kinghorn, Taylor Technology Services<\/p>\n<\/div>\n

Hi Jim. You are running into one of the peculiarities of Session 0 — where user interface elements do not seem to be refreshed consistently. Unfortunately it is a “Windows thing” and is outside the control of AlwaysUp.<\/p>\n

But all is not lost! Our development team took a look at your situation and concluded that calling the Windows RedrawWindow API function<\/a> in Session 0 might fix the problem.<\/p>\n

You have a couple of options:<\/p>\n

Option #1: Update your code to refresh all windows periodically<\/b><\/h2>\n

Specifically, your code should:<\/p>\n