Loadpicture

I am new to graphic programming in visual basic so this question might sound kind of stupid to most of you.
I want to randomly display a different picture in a certain location in my program.
I appreciate any help you could give me.
Thank you in advance.

VB Code:

Private Sub Command1_Click()
    Picture1.Picture = LoadPicture("C:\TEST.JPG")
End Sub

thank you