[Megha31]

Hi,
I want to upload photo on Facebook and twitter using cascade on BB10. I find that there is mechanism called Invocation framework by using which we can share photo on Facebook and twitter but i did not find any sample for that. If anyone explore this on cascade please help me on this.
i also find that file transfer API is used but did not find sample.

[dkonigs]

There are some Invocation Framework sample apps among the "community" samples collection on Github:
https://github.com/blackberry/Cascad...r/InvokeClient
https://github.com/blackberry/Cascad.../InvokeTarget1
https://github.com/blackberry/Cascad.../InvokeTarget2

I have no idea what you mean by "File Transfer API", but normal file I/O and HTTP is pretty much the same as anything else in the Qt world, so you can easily search the web for samples of that.

[jeroen_13]

File transfer api is used for downloading, saving and storing files.

[dkonigs]

I don't think you need any special BB10 API for that. Just QNetworkAccessManager and QFile, for which plenty of examples exist out there on the web.