public void ReloadFilters()
{
log("reload filters..");
IEnumFilters ef;
ClearFiltersSelection();
ClearConnections();
filter_positions.Clear();
foreach (Filter f in filters)
{
filter_positions.Add(f.Name, f.Coords);
}
filters.Clear();
log("reload_filters 1");
try
{
int hr = graphBuilder.EnumFilters(out ef);
DsError.ThrowExceptionForHR(hr);
IBaseFilter[] fs = new IBaseFilter[1];
IntPtr fetched = Marshal.AllocHGlobal(4);
while ((hr = ef.Next(1, fs, fetched)) == 0)
{
log("reload_filters 2");
FilterInfo fi;
fs[0].QueryFilterInfo(out fi);
log("reload_filters: " + fi.achName);
Filter ff = FindFilterByName(fi.achName);
if (ff == null) //not found
{
ff = new Filter(fs[0]);
AddFilterHere(ff, false, null);
history.AddFilterIfNew(ff.filterProps, ff.Name, ff.srcFileName, ff.dstFileName, ff);
}
else
{
ff.ReloadPins();
}
log("reload_filters 3");
foreach (Pin pin in ff.Pins)
{
log("reload_filters 4: " + pin.Name);
IPin ip = pin.IPin, connected_ipin;
hr = ip.ConnectedTo(out connected_ipin);
if (hr != 0)
{
continue;
}
PinInfo cpi;
connected_ipin.QueryPinInfo(out cpi);
FilterInfo cfi;
cpi.filter.QueryFilterInfo(out cfi);
Filter connected_filter = FindFilterByName(cfi.achName);
if (connected_filter != null)
{
Pin cp = connected_filter.FindPinByName(connected_filter.Name + "." + cpi.name);
if (cp != null)
{
string con_uniqname = (pin.Direction == PinDirection.Input) ?
cp.UniqName + "-" + pin.UniqName : pin.UniqName + "-" + cp.UniqName;
PinConnection con = FindConnectionByName(con_uniqname);
if (con == null)
{
if (pin.Direction == PinDirection.Input)
{
Connect(cp, pin);
}
else
{
Connect(pin, cp);
}
}
}
}
DsUtils.FreePinInfo(cpi);
}
}
Marshal.FreeHGlobal(fetched);
if (hr < 0)
{
DsError.ThrowExceptionForHR(hr);
}
}
catch (COMException e)
{
ShowCOMException(e, "Error while enumerating filters in the graph");
return;
}
/*catch (Exception e)
* {
* MessageBox.Show(e.Message, "Error while enumerating filters in the graph");
* return;
* }*/
log("reload_filters: almost done");
history.CommitAdded();
log("reload_filters: done");
}