You find this example project in your Plugins Download as a Xojo project file within the examples folder: /Picture/Screenshot/Make Screenshot
Class App Inherits Application
Const kEditClear = "&Delete"
Const kFileQuit = "&Quit"
Const kFileQuitShortcut = ""
EventHandler Sub Open()
dim f as FolderItem
dim p as Picture
dim n as integer
dim name as string
p=ScreenshotMBS
n=1
name="screenshot"+str(n)+".jpg"
f=SpecialFolder.Desktop.Child(name)
while f.Exists
n=n+1
name="screenshot"+str(n)+".jpg"
f=SpecialFolder.Desktop.Child(name)
wend
f.SaveAsJPEG p
quit
End EventHandler
End Class
Class Window1 Inherits Window
End Class
MenuBar MenuBar1
MenuItem FileMenu = "&File"
MenuItem FileQuit = "#App.kFileQuit"
MenuItem EditMenu = "&Edit"
MenuItem EditUndo = "&Undo"
MenuItem UntitledMenu1 = "-"
MenuItem EditCut = "Cu&t"
MenuItem EditCopy = "&Copy"
MenuItem EditPaste = "&Paste"
MenuItem EditClear = "#App.kEditClear"
MenuItem UntitledMenu0 = "-"
MenuItem EditSelectAll = "Select &All"
End MenuBar