/// <summary> Starts connection to the WeDo Hubs. </summary>
/// <returns> If the method completed with success the returning value is
/// <see cref="wclErrors.WCL_E_SUCCESS" />. If the method failed the returning value is
/// one of the Bluetooth Framework error code. </returns>
/// <remarks> The method starts searching for WeDo Hubs and to connect to each found. Once the Hub found
/// the <c>OnHubFound</c> event fires. An application may accept connection to this Hub by setting
/// the <c>Connect</c> parameter to <c>true</c>. </remarks>
public Int32 Start()
{
if (FRadio != null)
{
return(wclConnectionErrors.WCL_E_CONNECTION_ACTIVE);
}
Int32 Res = FManager.Open();
if (Res == wclErrors.WCL_E_SUCCESS)
{
Res = FManager.GetLeRadio(out FRadio);
if (Res == wclErrors.WCL_E_SUCCESS)
{
// Try to start watching for HUBs.
Res = FWatcher.Start(FRadio);
// If something went wrong we must clear the working radio objecy.
if (Res != wclErrors.WCL_E_SUCCESS)
{
FRadio = null;
}
}
// If something went wrong we must close Bluetooth Manager
if (Res != wclErrors.WCL_E_SUCCESS)
{
FManager.Close();
}
}
return(Res);
}
private void Stop()
{
// Stop discovering.
FWatcher.Stop();
// Close Bluetooth Manager.
FManager.Close();
}
/// <summary> Starts connection to the WeDo Hubs. </summary>
/// <returns> If the method completed with success the returning value is
/// <see cref="wclErrors.WCL_E_SUCCESS" />. If the method failed the returning value is
/// one of the Bluetooth Framework error code. </returns>
/// <remarks> The method starts searching for WeDo Hubs and to connect to each found. Once the Hub found
/// the <c>OnHubFound</c> event fires. An application may accept connection to this Hub by setting
/// the <c>Connect</c> parameter to <c>true</c>. </remarks>
public Int32 Start()
{
if (FRadio != null)
{
return(wclConnectionErrors.WCL_E_CONNECTION_ACTIVE);
}
Int32 Res = FManager.Open();
if (Res == wclErrors.WCL_E_SUCCESS)
{
if (FManager.Count == 0)
{
Res = wclBluetoothErrors.WCL_E_BLUETOOTH_API_NOT_FOUND;
}
else
{
// Look for first available radio.
for (int i = 0; i < FManager.Count; i++)
{
if (FManager[i].Available)
{
FRadio = FManager[i];
break;
}
}
if (FRadio == null)
{
Res = wclBluetoothErrors.WCL_E_BLUETOOTH_RADIO_UNAVAILABLE;
}
else
{
// Try to start watching for HUBs.
Res = FWatcher.Start(FRadio);
// If something went wrong we must clear the working radio objecy.
if (Res != wclErrors.WCL_E_SUCCESS)
{
FRadio = null;
}
}
}
// If something went wrong we must close Bluetooth Manager
if (Res != wclErrors.WCL_E_SUCCESS)
{
FManager.Close();
}
}
return(Res);
}
private void btConnect_Click(object sender, EventArgs e)
{
// The very first thing we have to do is to open Bluetooth Manager.
// That initializes the underlying drivers and allows us to work with Bluetooth.
// Always check result!
Int32 Res = FManager.Open();
if (Res != wclErrors.WCL_E_SUCCESS)
{
// It should never happen but if it does notify user.
MessageBox.Show("Unable to open Bluetooth Manager: 0x" + Res.ToString("X8"));
}
else
{
// Assume that no one Bluetooth Radio available.
wclBluetoothRadio Radio = null;
Res = FManager.GetLeRadio(out Radio);
if (Res != wclErrors.WCL_E_SUCCESS)
{
// If not, let user know that he has no Bluetooth.
MessageBox.Show("No available Bluetooth Radio found");
}
else
{
// If found, try to start discovering.
Res = FWatcher.Start(Radio);
if (Res != wclErrors.WCL_E_SUCCESS)
{
// It is something wrong with discovering starting. Notify user about the error.
MessageBox.Show("Unable to start discovering: 0x" + Res.ToString("X8"));
}
else
{
btConnect.Enabled = false;
btDisconnect.Enabled = true;
laStatus.Text = "Searching...";
}
}
// Again, check the found Radio.
if (Res != wclErrors.WCL_E_SUCCESS)
{
// And if it is null (not found or discovering was not started
// close the Bluetooth Manager to release all the allocated resources.
FManager.Close();
// Also clean up found Radio variable so we can check it later.
Radio = null;
}
}
}
private void FClient_OnConnect(object Sender, int Error)
{
if (Error != wclErrors.WCL_E_SUCCESS)
{
lbLog.Items.Add("Connect failed: 0x" + Error.ToString("X8"));
FManager.Close();
}
else
{
wclGattService[] Services;
Int32 Res = FClient.ReadServices(wclGattOperationFlag.goReadFromCache, out Services);
if (Res != wclErrors.WCL_E_SUCCESS)
{
lbLog.Items.Add("Read services failed: 0x" + Res.ToString("X8"));
}
else
{
foreach (wclGattService s in Services)
{
lbLog.Items.Add(s.ToString());
}
FClient.Disconnect();
}
FManager.Close();
}
}
private void MainForm_FormClosed(object sender, FormClosedEventArgs e)
{
_client.Disconnect();
_client = null;
_manager.Close();
_manager = null;
Cleanup();
}
private void FHub_OnDisconnected(Object Sender, Int32 Reason)
{
EnableConnect(false);
FManager.Close();
}
public void DisconnectBLE()
{
Manager.Close();
FEvent.Close();
FEvent = null;
}
private void BtStart_Click(Object Sender, EventArgs e)
{
// The very first thing we have to do is to open Bluetooth Manager.
// That initializes the underlying drivers and allows us to work with Bluetooth.
// Always check result!
Int32 Res = FManager.Open();
if (Res != wclErrors.WCL_E_SUCCESS)
{
// It should never happen but if it does notify user.
MessageBox.Show("Unable to open Bluetooth Manager: 0x" + Res.ToString("X8"));
}
else
{
// Assume that no one Bluetooth Radio available.
wclBluetoothRadio Radio = null;
// Check that at least one Bluetooth Radio exists (or at least Bluetooth drivers installed).
if (FManager.Count == 0)
{
// No one, even drivers?
MessageBox.Show("No Bluetooth Hardware installed");
}
else
{
// Ok, at least one Bluetooth Radio module should be available.
for (Int32 i = 0; i < FManager.Count; i++)
{
// Check if current Radio module is available (plugged in and turned ON).
if (FManager[i].Available)
{
// Looks like we have Bluetooth on this PC!
Radio = FManager[i];
// Terminate the loop.
break;
}
}
// Check that we found the Bluetooth Radio module.
if (Radio == null)
{
// If not, let user know that he has no Bluetooth.
MessageBox.Show("No available Bluetooth Radio found");
}
else
{
// If found, try to start discovering.
Res = FWatcher.Start(Radio);
if (Res != wclErrors.WCL_E_SUCCESS)
{
// It is something wrong with discovering starting. Notify user about the error.
MessageBox.Show("Unable to start discovering: 0x" + Res.ToString("X8"));
// Also clean up found Radio variable so we can check it later.
Radio = null;
}
}
}
// Again, check the found Radio.
if (Radio == null)
{
// And if it is null (not found or discovering was not started
// close the Bluetooth Manager to release all the allocated resources.
FManager.Close();
}
}
}
private void CloseBluetoothManager()
{
Trace("Closing Bluetooth Manager");
FManager.Close();
}
