Screenshot Using Robot().CreateScreenCapture

Ignition
1

Using ignition 8.1.27 vision

I have a button that creates a screenshot of the open program. I recently changed the entire script from a project script that created a PDF by sending the image through SQL to a button script that makes a JPEG instead using the following code:

image
image1037×805 39.8 KB

The old way of sending the image through SQL was causing temporary communication losses with the client/gateway. I thought the changes I made would stop this but it seems I still have comm losses. When I tried to change the button script to a gateway project script it works the first time the button is pressed, then it stops working until the program is closed/ reopened. It seems to work back to back as a button script - but will eventually cause comm loss. Am I missing something to close out the image once created? I know that in both scenarios (project script or button script) the code is reaching the end because the last line creates an event log that I can see, but with the project script it won't execute after the first time

2

It looks like you have cut off part of your code at the bottom, post code, not pictures of code. Please see Wiki - how to post code on this forum.

Other points of note:
-This doesn't appear to be a project library script, as I'm not seeing any function def anywhere.
-Don't use exit(), full stop. If you need to exit your logic early, put your logic in a function in the project library and use return. Call said function from your button.
-Ignition provides built in methods for both reading and writing to files. Use system.file.writeFile instead of ImageIO.write.
-In general, use built in Ignition methods before deferring to java or python packages (especially with times/dates).

3

Project scripts only ever run once (per project save/update). You should be defining constants in the project library plus functions that do the actual work. Your event should call a function in the library script.