I have used a image navigator of a DSC module to draw in front panel, a scheme of my installation. How could make reference to each one of the components that compose the drawing? How can I do that, When the valve is open his color is green and when it is closed is red.
Exists something similar to property node for this components.
You can get references to decorations (by using the VI class Panel>>Decorations property), but you won't be able to control the colors of the decoration.
What you can do is either use the controls which already come with the DSC module (you should have a DSC palette with some valves) or customize a boolean and replace the T image with the green valve and the F image with the red valve. You can also use a picture ring for more colors.