How could I use qdbus org.kde.VisualNotifications /VisualNotifications to display a notify window? In particular pass QVariantMap type parameters...

For example,
qdbus org.kde.VisualNotifications /VisualNotifications Notify "app_name" 0 0 "" "header" "text" "" ?? 5000

I've get error: Sorry, can't pass arg of type 'QVariantMap'

What I need specify instead "??" ?

Here one year ago were discussions about it viewtopic.php?f=66&t=23580&start=10#p75686 but using Python script, but I need from shell/commandline

qdbus does not support QVariantMap I believe, so you need to use a coded application ( whether Python / C++ / etc ) to do it.

Yes! I think so too... Probably I will coded some workaround/wrappers application...

But I think may be exists something tools that will allow and support QVariantMap type patameters...

Thanks!

It's pretty sad that Linux is turning away from the modular, text-based approach that made it great.

In this case, it is simply a lack of an application which is able to send the appropriate types. This is due to the fact that console applications do not usually send KDE notifications.