UploadProgress
virtual void UploadProgress(BUrlRequest* caller,
virtual void UploadProgress(BUrlRequest* caller,
virtual void UploadProgress(BUrlRequest* caller,
fListener->UploadProgress(this, readSize,
UploadProgress(caller, bytesSent, bytesTotal);
SendMessage(UrlEvent::UploadProgress, [this](BMessage& msg) {
case UrlEvent::UploadProgress:
"message should be UploadProgress", UploadProgress == message.what);
case UploadProgress:
case UploadProgress: