Where are defined programs appearing in jgmenu?

For example the “virtual keyboard” progam in my jgmenu doesn’t startup when I click on it.
To find out what’s wrong, I’d like to know which program it is supposed to launch.
Where can I find this information ?

Look in /use/share/applications

jgmenu reads the *.desktop files. If you can determine which of those files is for the virtual keyboard, you can open the file in a text editor. The command will be on the “Exec=” line.

Ok /usr/share/applications has cinnamnon-onscreen-keyboard.desktop.
I’ve read the Exec line and I guess it’s a part of the cinnamaon desktop; that’s why it isn’t loaded in openbox.

It would be nice when right-clicking on the menu entry the program name pop up.