Can't get mdi action to fire

I'm trying to get the example mdi action to work, but it never seems to fire.

In my .ini file I have...

[DISPLAY]
EMBED_TAB_NAME=who
EMBED_TAB_COMMAND=gladevcp -c uiWhoAreYou -x {XID} /home/frankt/linuxcnc-dev/configs/apps/gladevcp/mdi-command-example/whoareyou.ui


The panel appears in axis, and I can press the button, but the mdi message doesn't appear. I can manually type the command (MSG,"Hello") in the MDI and that works correctly.

Am I missing something?

I'm using master from a couple of weeks ago.

can you post the ui file?

It's the stock example in the configs directory. I am running on an old Ubuntu 12.04 Virtual Machine. Is it maybe an old version of a library?


<?xml version="1.0"?>
<interface>
<requires lib="gtk+" version="2.16"/>
<!-- interface-requires gladevcp 0.0 -->
<!-- interface-naming-policy project-wide -->
<object class="GtkWindow" id="window1">
<child>
<object class="GtkButton" id="button1">
<property name="label" translatable="yes">Who are you?</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<property name="related_action">hal_action_mdi1</property>
</object>
</child>
</object>
<object class="EMC_Action_MDI" id="hal_action_mdi1">
<property name="command">(MSG, "Hi, I'm an EMC_Action_MDI")</property>
</object>
</interface>