🚀 go-pugleaf

> You cannot write a device driver with BCB...

Why?

.  Ed

> Umut Ozden wrote in message
> news:42667ee2@newsgroups.borland.com...
>
> I'm translating the reply of "abc" to my first message:
> -------
> You cannot write a device driver with BCB. Furthermore I think
> that there is no need to write a device driver for what you want
> to implement.
> i. Use the SUBST command to map a folder to the drive letter F:
> ii. Check this folder regularly and if a file exists in this folder 
> send
> this file
>    to the external device through the COM port.
> iii. Delete the file after the transfer ends.
>
> "abc" also suggests putting the SUBST command into a batch file and
> executing this batch file automatically when Windows starts. So, a
> drive letter F: will always be available when Windows starts.
> -------
> I've already written a program that opens a file and sends the file
> through to COM port.
> Using the SUBST approach requires another program (or an extension 
> to
> my program) that is responsible for checking regularly the related 
> folder
> and sending a file
> through the COM port to the external device, but it doesn't make 
> much sence
> because I can already transfer a file after executing a program - my
> program.
>
> I don't know the details of the Shell Namespace Extension approach 
> although
> I
> had a short look at the MSDN.
> My scenario is:
> As soon as the user attaches the RS-232 cable to the computer (at 
> the other
> end
> it is attached to the RS-232 port present on the external device) a 
> drive
> letter F:
> should appear in Windows Explorer and when the user drag&drops a 
> file to
> F: the file should be sent through the COM port to the external 
> device.
>
> So, can Shell Namespace Extension provide what I need? In other 
> words, do I
> have to execute my program which includes Shell Namespace Extension 
> after
> each Windows session? I'm confused because I've seen some registry 
> updates
> in
> the related MSDN document and that makes me think that I have to 
> execute my
> program (Shell Namespace Extension) only once to see a drive letter 
> F: