C-Script

Hi,
Who can show me how C-Script can do asbelow VB-Script can do?!

Sub OnClick(ByVal Item)
Dim Scr
Set Scr=HMIRuntime.Screens("@Screen.@win12:@1001").ScreenItems("@Desk")
Scr.PictureName ="Welcome"
End Sub


Sorry because there a no bit of my understanding of C-Languages

Thanks!
BAN