checkbox in ThunderRT6PictureBoxDC control.

[asHer 0]

I am trying to automatically click on Checkbox in a PictureBox control in an old VB6 application.
Spy++ and AutoIT Info Tool  recognizes the PictureBox as "ThunderRT6PictureBoxDC" and ID 2.
But the checkbox inside the "ThunderRT6PictureBoxDC" is not recognized.

How do i "check/uncheck" a checkbox which is inside ThunderRT6PictureBoxDC control.

Edited May 28, 2014 by asHer