Bluetooth API - is a good idea
You can use next steps:
1. Enum available phone services with WSALookupServiceBegin, WSALookupServiceNext functions
2. Get OBEX File Transfer service address
3. Create bluetooth socket
4. Connect to the finded service address
5. Implement OBEX File Transfer protocol (Connect and Put commands -
http://netwinder.osuosl.org/pub/netwinder/docs/nw/irda/IrOBEX12.pdf[
^],
http://dotcom.bluetoothsig.org/SiteCollectionDocuments/GOEP_SPEC_V12.pdf[
^]) and send file through the socket
I can share own test project, but dont know how to attach it to the solution