Programatically Print Screen and Paste Into Picture Control

[David-A]

Overview
This VI takes a screenshot of all active monitors and paste the image from the clipboard into a picture control on the front panel.

Description
The VI programmatically takes a screenshot by accessing the user32.dll and simulating a user processing the Print Screen button. Once a screenshot has been copied to the clipboard the image is retrieved using the Clipboard, GetImage method. This returns an array of points that we convert into a pix map that can be passed into a picture control.

Requirements

• LabVIEW 2012 (or compatible)

Steps to Implement or Execute Code

1. Run VI and view the results

Additional Information or References
VI Block Diagram

 

 **This document has been updated to meet the current required format for the NI Code Exchange.**

[Yogesh.Sinare]

Thank you David-A for sharing this helpful code.

With little modification I was able to fit in our requirement.

Just a point to add -

To get the active window screen print, enter 18 (x12) for second argument(i.e. MASK) to lib call.

It's that simple to get ALT-PRINT SCREEN!!

Regards

Yogesh Sinare

[David-A]

Glad you found it useful. And that's a good tip. Thanks for sharing!

[RVallieu]

It appears that 18 (x12) is not universal for ALT for the second argument.

[RVallieu]

Hmm - it is universal for ALT - I must be doing something wrong - as it is not working for me to snap only the selected top level window.