page.PagePicture - Screenshot duplication

Question

Hi everyone,
I seem to have an intermittent issue when using the method&nbsp;page.PagePicture(0,0,-1,-1)&nbsp;with Oracle Cloud Applications.
If I try to capture a screenshot of a full page (e.g.,&nbsp;var shot = page.PagePicture(0,0,-1,-1)) where the canvas spans more than what is displayed onscreen, and then save that screenshot to Stores Regions (e.g.,&nbsp;Regions.AddPicture(shot, "My Screenshot")), I will intermittently get a screenshot where the top part of the screen is duplicated, and the bottom is truncated. Rather than getting a full screenshot, the result is incomplete.
As I mentioned, this issue is intermittent and seems to be related to the speed at which the webpage reacts to the&nbsp;page.PagePicture(0,0,-1,-1)&nbsp;method call.
To address this, I’ve tried the following steps to slow down the process:

aqUtils.Delay(3000);
Options.Web.CSSTransitionForPagePicture&nbsp;(tested with both&nbsp;true&nbsp;and&nbsp;false)
Options.Web.WebPageLoadingTimeout = 120000;
Options.Run.Delay = 500;
page.Wait(10000);
page.Keys("[Esc]");

Unfortunately, none of these have resolved the issue.
Questions:

Am I missing any additional settings or methods that could help ensure the full page is captured consistently?
Has anyone else experienced a similar issue with&nbsp;page.PagePicture(0,0,-1,-1)&nbsp;in Oracle Cloud Applications or other web applications?

Any insights or suggestions would be greatly appreciated!
Thank you in advance for your help.

hassan_ballan · Answer

AI currently are good search tools and have good reasoning when you ask the right questions.&nbsp;
This behavior isn’t just a random timing quirk, it's an inherent technology limitation. To confirm, you may try the documentation provided example as is in a loop to see if it fails. If it does not, the intermittent root cause would be the highly dynamic web apps "Oracle Cloud" re-rendering while scrolling.
The page.PagePicture(0,0,-1,-1) works by&nbsp;scrolling the page and stitching viewport captures together to produce what looks like a full-page image. That approach can struggle on dynamic, virtual-scrolling content (like Oracle Cloud pages), because portions of the page are re-rendered or recycled while TestComplete is scrolling. When that happens, you can see duplicate top content and a truncated bottom instead of a complete screenshot.

PagePicture Method (Page Objects)
Remarks

To capture an image of the whole page, call PagePicture without any parameters. The method will automatically scroll the page and combine the images of hidden areas.

SmartBear’s documentation for PagePicture notes that the method automatically scrolls and combines images and that sticky elements or scrolling behavior can affect the final result.&nbsp;
Practical suggestions that may help:

Use page.Picture() to capture only the visible viewport and avoid full-page stitching entirely.
Manually scroll via JavaScript (window.scrollTo(...)) and capture multiple viewports yourself.
Disable browser hardware acceleration — this can reduce frame re-use that might cause repeated captures.
Break the screenshot into sections and stitch yourself if a true full-page is required.

&nbsp;
Unfortunately, there’s no TestComplete setting that guarantees totally consistent full-page captures for highly dynamic web apps; this is an inherent limitation of the current scrolling-and-stitching approach.
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mike359 · Answer

BTW TC Version is 15.76.5.7 x64

rraghvani · Answer

I've just tried this using the following code,
function test()
{
    var page = Sys.Browser("chrome").Page("https://getbootstrap.com/docs/4.0/components/dropdowns/");
    
    var picture = page.PagePicture(0, 0, -1, -1);
    // Posts the image to the test log
    Log.Picture(picture);
}
and it works,

Reasons for it may not work, is mentioned in&nbsp;PagePicture Method (Page Objects)&nbsp;

mike359 · Answer

Hi, Thank you for replying. I have tried the solution many times and as I stated this is an&nbsp; intermittent error no matter what settings I apply. Here are some redacted screen shots of what happens when I run the test several times without changing any code:
Expected Output:

Occasionally I will get this Unexpected output (with no changes in code):

As you can see it is repeated [Note: I manually redacted data on the screenshot in obvious places for Data Protection reasons]

mike359 · Answer

I have also tried scrolling to the bottom of the screen then back up before taking the screenshot.
Waiting for page to load. (aqUtils.Delay, Sys.Desktop.Refresh, page.BringToFront, &nbsp;Options.Run.Delay, &nbsp;page.ToUrl(page.URL), plus others )
Calculating its height and width values and passing those in instead of -1.&nbsp;
Started at pixel 1 rather than 0 ie page.PagePicture(1,1,-1-1)&nbsp;

All of which made no difference (I am now considering using other methods to perform a full page extract, but this required access to DotNet libraries or ImageMagic being installed. Ideally I do not want to do that). These types of issue are difficult to reproduce by others, making it hard to identify and fix. Especially if others have not experienced he same.
However, any other suggestions or TC methods I can use would be gratefully received.&nbsp;&nbsp;
Thanks In advance

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page.PagePicture - Screenshot duplication

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