Hy, i'm trying to do a "settings" menu. Each item will have a "Checked image". How i can hide the image or show it after my preferences?

You're being a little too vague can you put it into context a bit more for us. What is it the you are making the settings menu for ? what do you mean by "Checked Image" ? do you mean a check box to select and de-select a setting ? what is this image you want to hide/ show ? and what is "my preferences ?

If you want to create similar to tool bar in Visual studies where you can change the different properties of an object try the property grid object, I've used it to edit default (colour, font style, size, face etc) and it was spot on for the job.

Hope this helps.