public static void Revoke()
{
if (null == m_newFilter)
return;
try
{
ApplicationControllerTrace trace = new ApplicationControllerTrace("Unregister message filter");
IOleMessageFilter oldFilter = null;
long hresult = CoRegisterMessageFilter(m_oldFilter, out oldFilter);
if (hresult != S_OK)
{
trace.Log(String.Format("Could not revoke MessageFilter (hresult = 0x{0:X} - possibly called from MTA thread (unsupported))", hresult));
}
if (null != oldFilter)
{
StringBuilder message = new StringBuilder("The previous message filter is ");
message.Append(oldFilter.GetType());
trace.Log(message.ToString());
}
}
catch (System.Exception e)
{
ApplicationControllerTrace trace = new ApplicationControllerTrace("Unregister message filter");
trace.Log(e.Message);
}
finally
{
m_newFilter = null;
m_oldFilter = null;
}
}
public static void Register()
{
if (null != m_newFilter)
return;
ApplicationControllerTrace trace = new ApplicationControllerTrace("Register message filter");
MessageFilter newFilter = new MessageFilter();
long hresult = CoRegisterMessageFilter(newFilter, out m_oldFilter);
if (hresult == S_OK)
{
m_newFilter = newFilter;
}
else
{
trace.Log(String.Format("Could not register MessageFilter (hresult = 0x{0:X} - possibly called from MTA thread (unsupported))", hresult));
}
if (null == m_oldFilter)
{
trace.Log("The process did not contain a message filter");
}
else
{
StringBuilder message = new StringBuilder("The previous message filter is ");
message.Append(m_oldFilter.GetType());
trace.Log(message.ToString());
}
}
public static void Register()
{
if (null != _newFilter)
return;
var newFilter = new MessageFilter();
long hresult = CoRegisterMessageFilter(newFilter, out _oldFilter);
if (hresult == S_OK)
{
_newFilter = newFilter;
}
}
/// <summary>
/// Uninstalls the retry message filter.
/// </summary>
public static void Uninstall()
{
lock (syncRoot)
{
if (oldFilter != null)
{
IOleMessageFilter filter;
NativeMethods.CoRegisterMessageFilter(oldFilter, out filter);
oldFilter = null;
newFilter = null;
}
}
}
public static void Revoke()
{
if (null == _newFilter)
return;
try
{
IOleMessageFilter oldFilter;
CoRegisterMessageFilter(_oldFilter, out oldFilter);
}
catch (Exception e)
{
Logger.LogError(e);
}
finally
{
_newFilter = null;
_oldFilter = null;
}
}
private static extern int CoRegisterMessageFilter(IOleMessageFilter lpMessageFilter, out IOleMessageFilter lplpMessageFilter);
private static extern int CoRegisterMessageFilter(IOleMessageFilter newFilter, out IOleMessageFilter oldFilter);
CoRegisterMessageFilter(IOleMessageFilter newFilter, out IOleMessageFilter oldFilter);
// Done with the filter, close it.
public static void Revoke()
{
IOleMessageFilter oldFilter = null;
CoRegisterMessageFilter(null, out oldFilter);
}
/// <summary>
/// Note this registers the filter only for the current thread.
/// </summary>
public static void Register()
{
IOleMessageFilter oldFilter = null;
CoRegisterMessageFilter(new ComMessageFilter(), out oldFilter);
}
CoRegisterMessageFilter(IOleMessageFilter newFilter, out
IOleMessageFilter oldFilter);
private static extern int CoRegisterMessageFilter(
IOleMessageFilter newFilter, out IOleMessageFilter oldFilter);
private static void CoRegisterMessageFilter(IOleMessageFilter newFilter)
{
IOleMessageFilter oldFilter;
CoRegisterMessageFilter(newFilter, out oldFilter);
}
private static extern int CoRegisterMessageFilter(IOleMessageFilter hTaskCallee, out IOleMessageFilter oldFilter);
public static void CoRegisterMessageFilter(IOleMessageFilter newFilter) => CoRegisterMessageFilter(newFilter, out _);
private static void CoRegisterMessageFilter(IOleMessageFilter newFilter)
{
IOleMessageFilter oldFilter;
CoRegisterMessageFilter(newFilter, out oldFilter);
}
