Need advice for Raspberry pi app

Getting Started
1

Hi guys!

I’m really new to the programming world.
Ive done a couple of arduino program with succes, but all the GUI I currently have zero experience.

I’m currently looking for a solution to create a GUI application for the raspberry pi that will read the usb ports.

It’s a simple application that can transfer the data from one USB drive to the other.
That it.

No other thing involve for the moment.
No formating the USB or anything.

I just want to program to take USB 1 and transfert everyting to USB 2.

Can somebody help me on that.
Where to start, what I need to learn for doing that?!

Thanks.
Jc

2

Hi JC,

Check out the ‘CopyFileOrFolder method’ example on http://documentation.xojo.com/index.php/FolderItem

  • You’d create a Folder Item for USB 1 and USB 2.
  • Delete all the items on USB 2
  • Then run ‘CopyFileOrFolder’ to copy the files.

There might be an even easier shell command that you could run.

3

Hi! Thanks, ill check it clossely 2night.

The other thing.
It’s possible to use the same target for different source.

Exemple. I will have a USB of 32go to backup to a USB hard drive of 500go.

If I have 2 other 32go USB I don’t want to delete the 500go hard drive.
I don’t know if you follow me.

I want to be able to do multiple backup to the 500go.

4

Yep. Just make the Destination Folder Item different. You can create folders using: http://documentation.xojo.com/index.php/FolderItem.CreateAsFolder

5

Ok thanks.

Last thing, do you have a int how to mount the USB drive?

I was planing to have a drop menu with the usb drive plug inside the raspberry.

I guest I need to go with the serial protocol?

6

That’s beyond me, but I bet the MBS Plugin can do it:
http://www.monkeybreadsoftware.net/plugins-mbsusbplugin.shtml

7

Plug the drives into the Raspberry Pi and see if they appear under the VolumeCount and Volume http://documentation.xojo.com/index.php/Volume. If so, then it’s a simple FolderItem FileCopyTo http://documentation.xojo.com/index.php/FolderItem.CopyFileTo

If you are copying large files your UI will be unresponsive during CopyFileTo. If you need more find control you’ll have to do be Binary copy in a thread but that’s it’s not worth talking about unless you have the issue.

8

Hi Bob K.
Thanks for the reply.

First I don’t care if the device is not responsive during the process.

If I can make a progress bar that will work it will be a plus, but it’s not really a big issus if not.

Last thing Ill check if the drive appear inside the VolumeCount.

I don’t think it will for all the device. (Mac, PC formated hard drive, ) and for the other usb (the source) it’s a SD card that coming from a camera.
So a format only for the camera.

Ill do some test and let you know!

If you have other info ill be please to know it!
Thanks.

9

Hi guys. First i was abke to mount the device with a button.
3 problem here.
First when i reclick on the button. It show me the same drive but 2 time(exemple i have 2 usb plug inside)
It will show me 2 times the 2 usb.
What can i do to refresh and not just double the drive in the list.
Second i dont know how to have the file on the usb display on a list and doing multiselection.
Third im lost in the copyfile.
If somebody is willing to write the code for me.im ready to offer a money compensation.
Thanks

10

[quote=290041:@Jean-Christophe Meilleur]First when i reclick on the button. It show me the same drive but 2 time(exemple i have 2 usb plug inside)
It will show me 2 times the 2 usb.
What can i do to refresh and not just double the drive in the list.
[/quote]

listbox.removeallelements before updating

11

there are examples on how to copy a file in the help file, also in the examples folder

12

[quote=290041:@Jean-Christophe Meilleur]Second i dont know how to have the file on the usb display on a list and doing multiselection.
[/quote]
choose “multiline selection” on the listbox properties