/// <summary>
/// Retrieves the value of an AutoDial parameter.
/// </summary>
/// <param name="parameter">The parameter whose value to retrieve.</param>
/// <returns>The value of the parameter.</returns>
public int GetAutoDialParameter(NativeMethods.RASADP parameter)
{
int retval = 0;
RasGetAutodialParamParams info = new RasGetAutodialParamParams();
info.BufferSize = sizeof(int);
bool retry = false;
do
{
try
{
info.Address = Marshal.AllocHGlobal(info.BufferSize);
int ret = UnsafeNativeMethods.Instance.GetAutodialParam(info);
if (ret == NativeMethods.SUCCESS)
{
if (info.BufferSize == sizeof(int))
{
retval = Marshal.ReadInt32(info.Address);
}
else
{
ThrowHelper.ThrowInvalidOperationException(Resources.Exception_UnexpectedSizeReturned);
}
retry = false;
}
else if (ret == NativeMethods.ERROR_BUFFER_TOO_SMALL)
{
retry = true;
}
else
{
ThrowHelper.ThrowRasException(ret);
}
}
catch (EntryPointNotFoundException)
{
ThrowHelper.ThrowNotSupportedException(Resources.Exception_NotSupportedOnPlatform);
}
finally
{
if (info.Address != IntPtr.Zero)
{
Marshal.FreeHGlobal(info.Address);
}
}
}
while (retry);
return retval;
}
/// <summary>
/// Retrieves the value of an AutoDial parameter.
/// </summary>
/// <param name="value">An <see cref="RasGetAutodialParamParams"/> containing call data.</param>
/// <returns>If the function succeeds, the return value is zero.</returns>
public int GetAutodialParam(RasGetAutodialParamParams value)
{
if (value == null)
{
ThrowHelper.ThrowArgumentNullException("value");
}
int bufferSize = value.BufferSize;
PInvokeCallTraceEvent evt = new PInvokeCallTraceEvent(NativeMethods.RasApi32Dll, "RasGetAutodialParam");
evt.Data.Add("key", value.Key);
evt.Data.Add("address", value.Address);
evt.Data.Add("bufferSize-IN", bufferSize);
int result = 0;
try
{
result = UnsafeNativeMethods.RasGetAutodialParam(value.Key, value.Address, ref bufferSize);
evt.ResultCode = result;
evt.Data.Add("bufferSize-OUT", bufferSize);
value.BufferSize = bufferSize;
}
finally
{
DiagnosticTrace.Default.TraceEvent(TraceEventType.Verbose, evt);
}
return result;
}
/// <summary>
/// Retrieves the value of an AutoDial parameter.
/// </summary>
/// <param name="value">An <see cref="RasGetAutodialParamParams"/> containing call data.</param>
/// <returns>If the function succeeds, the return value is zero.</returns>
public int GetAutodialParam(RasGetAutodialParamParams value)
{
int bufferSize = value.BufferSize;
int ret = UnsafeNativeMethods.RasGetAutodialParam(value.Key, value.Address, ref bufferSize);
value.BufferSize = bufferSize;
return ret;
}