OpenFileRequester with no selection

[Dude]

Hi, my app uses OpenFileRequester() to allow the user to select a file, or to let them choose no file. However, returning null means the dialog was cancelled, rather than "no file" indicated. That is, if no filename is specified in the "File name" box, then clicking "Open" does nothing. How can I differentiate between the two? Or how would you code your own app so that opting to select a file (or no file) can be done? Thanks.

[RSBasic]

You can create your own OpenFileRequester window or you can create a loop with a MessageRequester with the information that the user must enter something. Otherwise the program will quit.