Extract all images from browser

[RaelB]

Hello,

Do you have any suggestions/advice on how to extract all images that have been loaded in the browser, i.e. image content, not (just) image name.

Thanks
Rael

[salvadordf]

Hi,

I've never tried it but I guess you can do this :

• Leave the GlobalCEFApp.cache blank to use "in-memory" cache.
• Use the TChromium.OnBeforeResourceLoad event while the web page is loading and store all the image URLs. Check that the request.ResourceType property is RT_IMAGE.
• Use the TChromium.StartDownload function to download each stored image URL. The download should be instantaneous because TChromium will save the copy in the memory cache.

You will miss all these :

• Images drawn in a canvas.
• Images drawn piling up DIVs with a background color or stretched pixels.
• Images drawn using unicode characters with fonts loaded from the Internet.

Remember that the SimpleOSRBrowser demo has a "snapshot" button to save the whole web page as an image.

[RaelB]

Thanks. Interesting strategy. Not instantaneous if there are a lot of images, but still works well.

Thanks
Rael