miniB3D floating windows and event

hello all

i'm working on an application that have a main 3D window that use minib3d, but im too lazy to draw an interface with graphics, so i wish to use maxgui ^_^
To be honest, i've a massive data to show and to edit and it look better to use gui, so that's it. :P

Now my problem is about the main window, 'cause the user can use the arrow keys to move the camera around the 3D space, but he could also click on a window that have a combobox with a list of entities
when the user click on an combobox's item the camera
will be moved, so i suppose that I've to raise an event
but how to, I've no idea :-\

i should check that window without giving it a focus, 'cause the user sill playing on the main window
so something like this is out of discussion

While Not KeyDown(KEY_ESCAPE)		
	'... main game code
	RenderWorld
	'... more code..

	'"=== GUI EVENT ??!!
	ActivateGadget wndPlanet
	Select EventID()
	  Case EVENT_GADGETACTION
	     s=GadgetItemText(ComboBox,SelectedGadgetItem(ComboBox))
		 SetStatusText MyWindow , "index=" + SelectedGadgetItem(ComboBox) + ":item=" + s
		MoveEntity cam,EntityX(plnt[SelectedGadgetItem(ComboBox)]),EntityY(plnt[SelectedGadgetItem(ComboBox)]),EntityZ(plnt[SelectedGadgetItem(ComboBox)])
	End Select

	Flip
	'Cls
Wend
End

help i'm lost :(