Esempio n. 1
0
 internal bool TryGetEvent(string name, out ComEventDesc @event) {
     name = name.ToUpper(System.Globalization.CultureInfo.InvariantCulture);
     return _events.TryGetValue(name, out @event);
 }
Esempio n. 2
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        private static void ScanSourceInterface(ComTypes.ITypeInfo sourceTypeInfo, ref Dictionary<string, ComEventDesc> events) {
            ComTypes.TYPEATTR sourceTypeAttribute = ComRuntimeHelpers.GetTypeAttrForTypeInfo(sourceTypeInfo);

            for (int index = 0; index < sourceTypeAttribute.cFuncs; index++) {
                IntPtr funcDescHandleToRelease = IntPtr.Zero;

                try {
                    ComTypes.FUNCDESC funcDesc;
                    GetFuncDescForDescIndex(sourceTypeInfo, index, out funcDesc, out funcDescHandleToRelease);

                    // we are not interested in hidden or restricted functions for now.
                    if ((funcDesc.wFuncFlags & (int)ComTypes.FUNCFLAGS.FUNCFLAG_FHIDDEN) != 0) {
                        continue;
                    }
                    if ((funcDesc.wFuncFlags & (int)ComTypes.FUNCFLAGS.FUNCFLAG_FRESTRICTED) != 0) {
                        continue;
                    }

                    string name = ComRuntimeHelpers.GetNameOfMethod(sourceTypeInfo, funcDesc.memid);
                    name = name.ToUpper(System.Globalization.CultureInfo.InvariantCulture);

                    // Sometimes coclass has multiple source interfaces. Usually this is caused by
                    // adding new events and putting them on new interfaces while keeping the
                    // old interfaces around. This may cause name collisioning which we are
                    // resolving by keeping only the first event with the same name.
                    if (events.ContainsKey(name) == false) {
                        ComEventDesc eventDesc = new ComEventDesc();
                        eventDesc.dispid = funcDesc.memid;
                        eventDesc.sourceIID = sourceTypeAttribute.guid;
                        events.Add(name, eventDesc);
                    }
                } finally {
                    if (funcDescHandleToRelease != IntPtr.Zero) {
                        sourceTypeInfo.ReleaseFuncDesc(funcDescHandleToRelease);
                    }
                }
            }
        }
Esempio n. 3
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        private DynamicMetaObject BindEvent(ComEventDesc @event) {
            // BoundDispEvent CreateComEvent(object rcw, Guid sourceIid, int dispid)
            Expression result =
                Expression.Call(
                    typeof(ComRuntimeHelpers).GetMethod("CreateComEvent"),
                    ComObject.RcwFromComObject(Expression),
                    Expression.Constant(@event.sourceIID),
                    Expression.Constant(@event.dispid)
                );

            return new DynamicMetaObject(
                result,
                IDispatchRestriction()
            );
        }
Esempio n. 4
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 internal bool TryGetMemberEvent(string name, out ComEventDesc @event) {
     EnsureScanDefinedEvents();
     return _comTypeDesc.TryGetEvent(name, out @event);
 }