I'm using a script to bring the dialog box up, so that I can fill the 'Description' metadata for my pictures more easily than in a single-line DO metadata panel. The edit control on the form is of a 'multiline' type and I can indeed put many lines of text there. But when the data is written to the file only the first line is saved, others are lost. It doesn't make a difference if a line break was forced by ENTER key (carriage return) of SHIFT-ENTER (line break).
I noticed that other programs, which allow for multi-line entry (like Lightroom) save it with line-breaks inside the text, so, when viewed in programs that can read them they are shown as multiline, and when viewed in DO they are shown as one long line, with no breaks. How to make DO to write all lines to the file?