Hi,
>I don't see anything about using a variable name.
Variables (RTL expressions) can be used for any property so that this is not specifically repeated for the "Location" property.
Nevertheless the documentation of the ImageBox element (
https://4js.com/online_documentation/fjs-grd-manual-html/c_grd_layoutelements_imagebox.html) has several paragraphs on the topic.
It also explains that images can be stored in the database and an example is given on how the value of a 4GL BLOB variable can be used to display an image.
>I thought a URL was for a browser. Such as http:..... You seem to be using the term for a regular path also.
Yes, it is a URL supporting the protocols "http", "file" and "data". I will see that we make this more clear in the documentation.
Regards,
Alex