Can I use eValid to compare screenshots

Discussion of the technology underlying the eValid solution.

Can I use eValid to compare screenshots

Postby RichWebb » Mon May 29, 2017 9:46 am

Morning.

Can you tell me how I can resize my browser to a different size?

I want to grab screenshots and make comparisons between different computers.

Thanks
RichWebb
 
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Re: Can I use eValid to compare screenshots

Postby eValid » Tue May 30, 2017 4:13 pm

RichWebb wrote:Morning.

Can you tell me how I can resize my browser to a different size?

I want to grab screenshots and make comparisons between different computers.

Thanks


Fair question...we'll try to answer this RichWebb.

First, we generally recommend testing between two computers with different screen sizes using the smaller one as the base.

That way, any calculations that depend on window sizes are not an issue, so long as you measure things in pixels from the upper left hand corner of the browser screen.

Once you figure out a plan that avoids incompatibilities, then eValid has some commands to help you make adjustments.

In all cases the goal is to have the playback script behave in a "comparable" way on both machines.

For example, the command: Resize wid w h will resize a chosen window to a specified width, w, and height, h, expressed in pixels..

You should choose numbers that will fit on the smaller of the two screens you're working with.

If you are unsure of the current screen size, there is a playback command: ScreenSize w h which records into the EventLog the actual values of w and h.

To continue, there is a command: Repositon wid x y which repositions the named window, wid, to the x,y location expressed in pixels, offset from the upper left hand size of the entire screen.

So you can also automatically move your eValid window to a known location.

This is important if you are going to take -- and compare -- screenshots.

Hope this helps.

-- eValid Support
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