[Solved] Bluetooth Printing using Qt

seethanellai

Hi,

I am having one android app with printing facilities. I am able to print through ethernet printing.
But now i want to print using bluetooth printers (Bixolon SRP 350 plus). I have search it in google. I am unable to find the proper guidance.

I have checked QtBluetooth , but it says

"Push files to remote devices using the OBEX Object Push Profile (OPP) - Object Push Profile is not supported on Android."

Anyone have idea on this, Please help me with this.

SGaist

Hi,

Maybe "this":http://overglobe.wordpress.com/2013/12/27/android-bluetooth-printer/ will help

seethanellai

Is it possible in Qt C++? Without calling java methods?

seethanellai

Is it possible in Qt C++? Without calling java methods?

[quote author="SGaist" date="1415053464"]Hi,

Maybe "this":http://overglobe.wordpress.com/2013/12/27/android-bluetooth-printer/ will help[/quote]

seethanellai

This is achived by QBluetoothSocket. Done.

[quote author="seethanellai" date="1415082611"]Is it possible in Qt C++? Without calling java methods?

[quote author="SGaist" date="1415053464"]Hi,

Maybe "this":http://overglobe.wordpress.com/2013/12/27/android-bluetooth-printer/ will help[/quote]

[/quote]

SGaist

Nice !

Would you mind sharing your solution ? That might help other people :)

seethanellai

Sure. Below is the code snippet..
@
/* Connect to blue tooth socket with the proper MAC address and unique uuid. UUID can be created through QBluetoothUUID */

// Connect to service
static const QLatin1String serviceUuid("00001101-0000-1000-8000-00805F9B34FB");

m_pBtSocket = new QBluetoothSocket(QBluetoothServiceInfo::RfcommProtocol);

    QBluetoothAddress address = QBluetoothAddress("74:F0:7D:E2:23:44");
    m_pBtSocket->connectToService(address,QBluetoothUuid(serviceUuid),QIODevice::ReadWrite);

//Connect to the signal.
connect(m_pBtSocket, SIGNAL(connected()), this, SLOT(connected()));
connect(m_pBtSocket, SIGNAL(disconnected()), this, SLOT(disconnected()));

//Once it is connected to the printer then send text to it
void bluetoothprint::connected()
{
m_pBtSocket->write(text);
m_pBtSocket->write("\n\n\n\n\n\r");

m_pTextEdit->append("Connected: " + m_pBtSocket->peerName());

}

void bluetoothprint::disconnected()
{
m_pTextEdit->append("disconnected");
}
@

SGaist

Thanks !

Happy coding !

MTCA

Hi, Thank you for sharing your code.
Just wanted to know if the above mechanism can work for any printer or it is printer specific?
With the reference of your code, i am able to connect to various printer models but I am not able to print the text using write().

Togay210

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