AnsweredAssumed Answered

MSO6054a/Command Expert saving png screenshot

Question asked by danz on Feb 10, 2012
Latest reply on Feb 13, 2012 by danz

Like • Show 0 Likes0
Comment • 2

I am trying to do the equivelant of pressing the quick print scope button every 15 or 30 minutes automatically using Command Expert. The files would be saved to either the Scope's USB, or on the PC as PNG files. I tried the example "InfiniiVision_6000Series_ScreenCapture.iseq", but noting was being saved to the USB drive. Any suggestions? thanks in advance.

No one else has this question

Outcomes

2 Replies

bret Feb 11, 2012 10:18 PM
Mark Correct
Correct Answer
danz,

There is basically 2 ways to obtain a screenshot via SCPI.

1. Save screen-shot via SCPI into a USB stick
"

In this method, you can only save the image into a USB stick that is plugged into the scope. It is not possible to save the image file directly to your PC's harddisk via SCPI (you would need mode #2, explained later).

The command will be [SAVE:IMAGe:STARt "joker.png"]. Check out the :SAVE:IMAGE hierarchy for other options.

Remember, you can only save image file formats into USB sticks.
"

2. Save screen-shot via SCPI into a file directly into PC

"
In this method, use the [DISPlay:DATA?] command. What this command returns is the data of the screen-shot image file, in byte-array form. You will need to programatically construct the returned array of data into a file (e.g. .PNG, .BMP). Refer to the 6000's Programmers Manual on how to do this -- there is an example somewhere within. If you can't find it, let me know and I'll dig.
"

I am guessing that your "InfiniiVision_6000Series_ScreenCapture.iseq" is doing Method #2, which is why there is no file in your USB, because the command only returns you an array of bytes.

Hope this helps.
Like • Show 0 Likes0
Actions
danz Feb 13, 2012 6:35 AM
Mark Correct
Correct Answer
#1 is what I was looking for. Worked great. Thanks!

One other question now that #1 is working - to get it to do a save every 30 minutes, I was going to insert a WAIT line. The to get it to loop, I highlight the Save:image and Wait statements, right clicked to get the Profile window, and then entered "selected steps" and added the number of iterations. Then I clicked Profile button and it did the sequence.

Is there a (easy) way to loop within the program sequence? (instead of right clicking on the Profile mode).
Like • Show 0 Likes0
Actions

MSO6054a/Command Expert saving png screenshot

Outcomes

Related Content

Recommended Content