private static extern IntPtr RIL_Initialize(
uint dwIndex,
RILRESULTCALLBACK pfnResult,
RILNOTIFYCALLBACK pfnNotify,
uint dwNotificationClasses,
uint dwParam,
out IntPtr lphRil);
private static extern IntPtr RIL_Initialize(
uint dwIndex,
RILRESULTCALLBACK pfnResult,
RILNOTIFYCALLBACK pfnNotify,
uint dwNotificationClasses,
uint dwParam,
out IntPtr lphRil);
/*
* Uses RIL to get CellID from the phone.
*/
private void GetCellTowerInfo()
{
if (maybeCDMA)
{
return;
}
IntPtr hRil = IntPtr.Zero;
try
{
// initialise handles
IntPtr hRes = IntPtr.Zero;
RILRESULTCALLBACK callback = new RILRESULTCALLBACK(rilResultCallback);
try
{
GCHandle cb = GCHandle.Alloc(callback, GCHandleType.Pinned);
callback = (RILRESULTCALLBACK)cb.Target;
}
catch { }
// initialise RIL
hRes = RIL_Initialize(1, // RIL port 1
callback, // function to call with result
null, // function to call with notify
0, // classes of notification to enable
0, // RIL parameters
out hRil); // RIL handle returned
if (hRes != IntPtr.Zero)
{
return;
//throw new Exception("Cannot connect to GSM chip.");
}
// initialised successfully
// use RIL to get cell tower info with the RIL handle just created
idChanged = false;
hRes = RIL_GetCellTowerInfo(hRil);
// wait for cell tower info to be returned
if (!waithandle.WaitOne(5000, false))
{
maybeCDMA = true;
return;
}
//celltower info finished
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
return;
}
finally
{
// finished - release the RIL handle
try
{
if (hRil != IntPtr.Zero)
{
RIL_Deinitialize(hRil);
}
}
catch { }
}
if (idChanged)
{
idChanged = false;
OnTowerChanged(new EventArgs());
return;
}
else
{
return;
}
}
