private void Advise(object rcw)
{
BCLDebug.Assert(_connectionPoint == null, "comevent sink is already advised");
ComTypes.IConnectionPointContainer cpc = (ComTypes.IConnectionPointContainer)rcw;
ComTypes.IConnectionPoint cp;
cpc.FindConnectionPoint(ref _iidSourceItf, out cp);
object sinkObject = this;
cp.Advise(sinkObject, out _cookie);
_connectionPoint = cp;
}
private void Unadvise()
{
BCLDebug.Assert(_connectionPoint != null, "can not unadvise from empty connection point");
try {
_connectionPoint.Unadvise(_cookie);
Marshal.ReleaseComObject(_connectionPoint);
} catch (System.Exception) {
// swallow all exceptions on unadvise
// the host may not be available at this point
} finally {
_connectionPoint = null;
}
}
private void Unadvise() {
BCLDebug.Assert(_connectionPoint != null, "can not unadvise from empty connection point");
try {
_connectionPoint.Unadvise(_cookie);
Marshal.ReleaseComObject(_connectionPoint);
} catch (System.Exception) {
// swallow all exceptions on unadvise
// the host may not be available at this point
} finally {
_connectionPoint = null;
}
}
private void Advise(object rcw) {
BCLDebug.Assert(_connectionPoint == null, "comevent sink is already advised");
ComTypes.IConnectionPointContainer cpc = (ComTypes.IConnectionPointContainer)rcw;
ComTypes.IConnectionPoint cp;
cpc.FindConnectionPoint(ref _iidSourceItf, out cp);
object sinkObject = this;
cp.Advise(sinkObject, out _cookie);
_connectionPoint = cp;
}