PagePicture Method (Page Objects)

Applies to TestComplete 15.70, last modified on December 17, 2024

Description

Use the method to capture the image of the specified rectangular area of a web page and get the Picture object that provides access to the captured image.

You can post the captured image to the test log using the Log.Picture method or work with it by using methods of the Regions object.

Unlike the Picture method, you can use PagePicture to capture images that include page regions that are beyond the visible area of the page and that are accessible by scrolling the page. The method will scroll the page automatically to get the image of the needed areas.

The method works for both web testing approaches (cross-platform and classic). The method can capture pages of browsers running locally or in device clouds.

Declaration

TestObj.PagePicture(ClientX, ClientY, Width, Height)

TestObj A variable, parameter or expression that specifies a reference to one of the objects listed in the Applies To section
ClientX [in]    Optional    Integer Default value: 0   
ClientY [in]    Optional    Integer Default value: 0   
Width [in]    Optional    Integer Default value: -1   
Height [in]    Optional    Integer Default value: -1   
Result A Picture object

Applies To

The method is applied to the following object:

Page

View Mode

To view this method in the Object Browser panel and in other panels and dialogs, activate the Advanced view mode.

Parameters

The method has the following parameters:

ClientX

Specifies the left coordinate of the top-left corner of the rectangular area. 0 by default.

ClientY

Specifies the top coordinate of the top-left corner of the rectangular area. 0 by default.

Width

Specifies the width of the rectangular area. The value of -1 (default) indicates that the rectangular area spreads to the right edge of the page (this edge may be hidden and may only be accessible via the scroll bar).

Height

Specifies the height of the rectangular area. The value of -1 (default) indicates that the rectangular area spreads to the bottom of the page (this edge may be hidden and may only be accessible via the scroll bar).

Result Value

The Picture object that represents the captured image.

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.

  • If the Use CSS pixels for scaled pages option is enabled (by default), set the ClientX and ClientY parameter values relative to the web page, regardless of the browser zoom and the system's DPI setting.

  • Web pages can have ”sticky“ elements (elements with a fixed position), for example, a navigation menu at the top of the page. The way such elements appear on the page while it is being scrolled can affect the resulting image that the PagePicture method captures.

    You can use the Options.Web.CSSTransitionForPagePicture property to control the way the PagePicture method scrolls the page:

    • For remote web browsers, this property value is permanent and set to true.

    • If the property is true (by default), the method will use CSS transition when scrolling web pages. The “sticky” elements will not remain in the visible area of the page while the page is being scrolled.

    • Otherwise, the “sticky” elements will remain in the visible area of the page. That is, such elements can appear in the page image that the method captures several times.

    The images below show the page image captures with CSS transition enabled and disabled correspondingly:

    TestComplete Web Testing: Image of a web page captured with CSS transition

    Click the image to enlarge it.

    Image of a web page captured with CSS transition
    TestComplete Web Testing: Image of a web page captured without CSS transition

    Click the image to enlarge it.

    Image of a web page captured without CSS transition

    Known Issue: The CSS transition may not work on pages opened in Internet Explorer or applications that use Chromium Embedded Framework versions prior to 3.2171. For such pages, elements with fixed positions may remain in the visible area of the page when scrolling, and the captured image will have those elements repeated.

    The PagePicture method in TestComplete versions prior to version 12.31 does not use CSS transition. If in your tests created in previous TestComplete versions you have images captured by the PagePicture method, those images might differ from images captured in TestComplete version 12.31 and later. If you use those images for image comparison or region checkpoints, your tests may fail. We recommend that you update your baseline images or disable CSS transition for the PagePicture method in your project.

  • In some versions of Chrome, for example, in Chrome 53, infobars overlap the web page area a little. At that, they change the color of the page’s top border. You can notice this in the full-page images that the PagePicture method returns. If you use these images in image checkpoints, then the changed border color can affect the comparison results. A possible workaround is to exclude this area from comparison or hide the infobar.

Example

The following example demonstrates how to load a web page, capture an image of the page and post it to the test log.

JavaScript, JScript
Python
VBScript
DelphiScript
C++Script, C#Script
Copy Code

JavaScript, JScript

function PagePictureSample()
{
  Browsers.Item(btIexplorer).Run("http://smartbear.com");
  // Use the Browsers.RemoteItem property instead of Browsers.Item to access remote web browsers:
  // Browsers.RemoteItem("http://localhost:9515", {}).Run("https://smartbear.com/");
  var page = Sys.Browser("iexplore").Page("*");
  // Captures an image of the web page
  var picture = page.PagePicture();
  // Posts the image to the test log
  Log.Picture(picture);
  …
}

Python

def PagePictureSample():
  Browsers.Item[btIexplorer].Run("http://smartbear.com")
  # Use the Browsers.RemoteItem property instead of Browsers.Item to access remote web browsers:
  # Browsers.RemoteItem["http://localhost:9515", {}].Run("https://smartbear.com/")
  page = Sys.Browser("iexplore").Page("*")
  # Captures an image of the web page
  picture = page.PagePicture()
  # Posts the image to the test log
  Log.Picture(picture);
  # ...

VBScript

Sub PagePictureSample

  Browsers.Item(btIexplorer).Run("http://smartbear.com")
  ' Use the Browsers.RemoteItem property instead of Browsers.Item to access remote web browsers:
  ' Browsers.RemoteItem("http://localhost:9515", {}).Run("https://smartbear.com/")
  Set page = Sys.Browser("iexplore").Page("*")
  ' Captures an image of the web page
  Set picture = page.PagePicture
  ' Posts the image to the test log
  Log.Picture picture
  …
End Sub

DelphiScript

procedure PagePictureSample();
var page, picture;
begin
  Browsers.Item(btIexplorer).Run('http://smartbear.com');
  // Use the Browsers.RemoteItem property instead of Browsers.Item to access remote web browsers:
  // Browsers.RemoteItem(http://localhost:9515', {}).Run('https://smartbear.com/');
  page := Sys.Browser('iexplore').Page('*');
  // Captures an image of the web page
  picture := page.PagePicture();
  // Posts the image to the test log
  Log.Picture(picture);
  …
end;

C++Script, C#Script

function PagePictureSample()
{
  Browsers["Item"](btIexplorer)["Run"]("http://smartbear.com");
  // Use the Browsers.RemoteItem property instead of Browsers.Item to access remote web browsers:
  // Browsers["RemoteItem"]("http://localhost:9515", {})["Run"]("https://smartbear.com/");
  var page = Sys["Browser"]("iexplore")["Page"]("*");
  // Captures an image of the web page
  var picture = page["PagePicture"]();
  // Posts the image to the test log
  Log["Picture"](picture);
  …
}

See Also

Picture Object
Picture Method
Capturing Web Page Images

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