Panel plugin development

[Alexis BRENON @Xfce]

Hi all,

I am working on the xkb-keyboard panel plugin
(https://github.com/AlexisBRENON/xfce4-xkb-plugin/tree/variant) and
use some `DBG(...)` call to debug my code. However, some do not appear
in the panel output.

In my case, the calls in the xkb-plugin.c file (around lines 644 to
650, https://github.com/AlexisBRENON/xfce4-xkb-plugin/blob/5951e1e6ea376bbb1516d17e267a47fb06b05504/panel-plugin/xkb-plugin.c#L644)
print the right text in the panel output.
However, the calls inside the function `xkb_keyboard_get_pixbuf`
(called line 645) are never displayed
(https://github.com/AlexisBRENON/xfce4-xkb-plugin/blob/variant/panel-plugin/xkb-keyboard.c#L853).

Do you know why all my debug messages are not printed? Is there a way
to connect to the gdb instances if I run the xfce panel with the gdb
debug mode (to make sure that the function is actually called)?

Thanks for your help. So hurry to share my contribution to the community.

Kind regards,
Alexis.