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PC/SC in Qt NFC

PC/SC support is provided using native APIs on macOS and Windows, and using PCSCLite library on other platforms. The API can be used for accessing both wired and wireless smartcards and storage cards.

Limitations

  • The current API does not provide means to distinguish between separate readers/slots.
  • NDEF access is only provided for NFC Type 4 tags.
  • Other applications starting transactions on cards may block Qt applications from using Qt Nfc API.
  • QNearFieldTarget::sendCommand() used with a PC/SC target starts a transaction that remains active until QNearFieldTarget::disconnect() is called. This transaction prevents other applications from accessing this target.

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