questions on how to create a form

[farshizzo]

You should not be using yield statements if you are not using tasks. Here is a sample script that displays a dialog without using tasks. Use the spacebar to toggle the visibility of the dialog.

import viz
import vizdlg
viz.go()

#Create empty dialog
dlg = vizdlg.Dialog(title='Dialog title')

#Link dialog to center of window
viz.link(viz.CenterCenter,dlg)

#Toggle dialog visibility when spacebar is pressed
vizact.onkeydown(' ',dlg.visible,viz.TOGGLE)

viz.add('gallery.ive')