/// <summary>
/// Gets an ITypeLib object from OLE Automation compatible RCW ,
/// reads definitions of CoClasses and Enum's from this library
/// and creates a IDynamicMetaObjectProvider that allows to instantiate coclasses
/// and get actual values for the enums.
/// </summary>
/// <param name="rcw">OLE automation compatible RCW</param>
/// <returns>ComTypeLibDesc object</returns>
public static ComTypeLibInfo CreateFromObject(object rcw)
{
if (Marshal.IsComObject(rcw) == false)
{
throw new ArgumentException("COM object is expected.");
}
ComTypes.ITypeInfo typeInfo = ComRuntimeHelpers.GetITypeInfoFromIDispatch(rcw as IDispatch, true);
ComTypes.ITypeLib typeLib;
int typeInfoIndex;
typeInfo.GetContainingTypeLib(out typeLib, out typeInfoIndex);
return(new ComTypeLibInfo(GetFromTypeLib(typeLib)));
}
private void EnsureScanDefinedMethods()
{
if (_comTypeDesc != null && _comTypeDesc.Funcs != null)
{
return;
}
ComTypes.ITypeInfo typeInfo = ComRuntimeHelpers.GetITypeInfoFromIDispatch(DispatchObject, true);
if (typeInfo == null)
{
_comTypeDesc = ComTypeDesc.CreateEmptyTypeDesc();
return;
}
ComTypes.TYPEATTR typeAttr = ComRuntimeHelpers.GetTypeAttrForTypeInfo(typeInfo);
if (_comTypeDesc == null)
{
lock (s_cacheComTypeDesc)
{
if (s_cacheComTypeDesc.TryGetValue(typeAttr.guid, out _comTypeDesc) == true &&
_comTypeDesc.Funcs != null)
{
return;
}
}
}
if (typeAttr.typekind == ComTypes.TYPEKIND.TKIND_INTERFACE)
{
// We have typeinfo for custom interface. Get typeinfo for Dispatch interface.
typeInfo = ComTypeInfo.GetDispatchTypeInfoFromCustomInterfaceTypeInfo(typeInfo);
typeAttr = ComRuntimeHelpers.GetTypeAttrForTypeInfo(typeInfo);
}
if (typeAttr.typekind == ComTypes.TYPEKIND.TKIND_COCLASS)
{
// We have typeinfo for the COClass. Find the default interface and get typeinfo for default interface.
typeInfo = ComTypeInfo.GetDispatchTypeInfoFromCoClassTypeInfo(typeInfo);
typeAttr = ComRuntimeHelpers.GetTypeAttrForTypeInfo(typeInfo);
}
ComTypeDesc typeDesc = ComTypeDesc.FromITypeInfo(typeInfo, typeAttr);
ComMethodDesc getItem = null;
ComMethodDesc setItem = null;
Hashtable funcs = new Hashtable(typeAttr.cFuncs);
Hashtable puts = new Hashtable();
Hashtable putrefs = new Hashtable();
for (int definedFuncIndex = 0; definedFuncIndex < typeAttr.cFuncs; definedFuncIndex++)
{
IntPtr funcDescHandleToRelease = IntPtr.Zero;
try
{
ComTypes.FUNCDESC funcDesc;
GetFuncDescForDescIndex(typeInfo, definedFuncIndex, out funcDesc, out funcDescHandleToRelease);
if ((funcDesc.wFuncFlags & (int)ComTypes.FUNCFLAGS.FUNCFLAG_FRESTRICTED) != 0)
{
// This function is not meant for the script user to use.
continue;
}
ComMethodDesc method = new ComMethodDesc(typeInfo, funcDesc);
string name = method.Name.ToUpper(System.Globalization.CultureInfo.InvariantCulture);
if ((funcDesc.invkind & ComTypes.INVOKEKIND.INVOKE_PROPERTYPUT) != 0)
{
// If there is a getter for this put, use that ReturnType as the
// PropertyType.
if (funcs.ContainsKey(name))
{
method.InputType = ((ComMethodDesc)funcs[name]).ReturnType;
}
puts.Add(name, method);
// for the special dispId == 0, we need to store
// the method descriptor for the Do(SetItem) binder.
if (method.DispId == ComDispIds.DISPID_VALUE && setItem == null)
{
setItem = method;
}
continue;
}
if ((funcDesc.invkind & ComTypes.INVOKEKIND.INVOKE_PROPERTYPUTREF) != 0)
{
// If there is a getter for this put, use that ReturnType as the
// PropertyType.
if (funcs.ContainsKey(name))
{
method.InputType = ((ComMethodDesc)funcs[name]).ReturnType;
}
putrefs.Add(name, method);
// for the special dispId == 0, we need to store
// the method descriptor for the Do(SetItem) binder.
if (method.DispId == ComDispIds.DISPID_VALUE && setItem == null)
{
setItem = method;
}
continue;
}
if (funcDesc.memid == ComDispIds.DISPID_NEWENUM)
{
funcs.Add("GETENUMERATOR", method);
continue;
}
// If there is a setter for this put, update the InputType from our
// ReturnType.
if (puts.ContainsKey(name))
{
((ComMethodDesc)puts[name]).InputType = method.ReturnType;
}
if (putrefs.ContainsKey(name))
{
((ComMethodDesc)putrefs[name]).InputType = method.ReturnType;
}
funcs.Add(name, method);
// for the special dispId == 0, we need to store the method descriptor
// for the Do(GetItem) binder.
if (funcDesc.memid == ComDispIds.DISPID_VALUE)
{
getItem = method;
}
}
finally
{
if (funcDescHandleToRelease != IntPtr.Zero)
{
typeInfo.ReleaseFuncDesc(funcDescHandleToRelease);
}
}
}
lock (s_cacheComTypeDesc)
{
ComTypeDesc cachedTypeDesc;
if (s_cacheComTypeDesc.TryGetValue(typeAttr.guid, out cachedTypeDesc))
{
_comTypeDesc = cachedTypeDesc;
}
else
{
_comTypeDesc = typeDesc;
s_cacheComTypeDesc.Add(typeAttr.guid, _comTypeDesc);
}
_comTypeDesc.Funcs = funcs;
_comTypeDesc.Puts = puts;
_comTypeDesc.PutRefs = putrefs;
_comTypeDesc.EnsureGetItem(getItem);
_comTypeDesc.EnsureSetItem(setItem);
}
}
private void EnsureScanDefinedEvents()
{
// _comTypeDesc.Events is null if we have not yet attempted
// to scan the object for events.
if (_comTypeDesc != null && _comTypeDesc.Events != null)
{
return;
}
// check type info in the type descriptions cache
ComTypes.ITypeInfo typeInfo = ComRuntimeHelpers.GetITypeInfoFromIDispatch(DispatchObject, true);
if (typeInfo == null)
{
_comTypeDesc = ComTypeDesc.CreateEmptyTypeDesc();
return;
}
ComTypes.TYPEATTR typeAttr = ComRuntimeHelpers.GetTypeAttrForTypeInfo(typeInfo);
if (_comTypeDesc == null)
{
lock (s_cacheComTypeDesc)
{
if (s_cacheComTypeDesc.TryGetValue(typeAttr.guid, out _comTypeDesc) == true &&
_comTypeDesc.Events != null)
{
return;
}
}
}
ComTypeDesc typeDesc = ComTypeDesc.FromITypeInfo(typeInfo, typeAttr);
ComTypes.ITypeInfo classTypeInfo = null;
Dictionary <string, ComEventDesc> events = null;
var cpc = RuntimeCallableWrapper as ComTypes.IConnectionPointContainer;
if (cpc == null)
{
// No ICPC - this object does not support events
events = ComTypeDesc.EmptyEvents;
}
else if ((classTypeInfo = GetCoClassTypeInfo(this.RuntimeCallableWrapper, typeInfo)) == null)
{
// no class info found - this object may support events
// but we could not discover those
events = ComTypeDesc.EmptyEvents;
}
else
{
events = new Dictionary <string, ComEventDesc>();
ComTypes.TYPEATTR classTypeAttr = ComRuntimeHelpers.GetTypeAttrForTypeInfo(classTypeInfo);
for (int i = 0; i < classTypeAttr.cImplTypes; i++)
{
int hRefType;
classTypeInfo.GetRefTypeOfImplType(i, out hRefType);
ComTypes.ITypeInfo interfaceTypeInfo;
classTypeInfo.GetRefTypeInfo(hRefType, out interfaceTypeInfo);
ComTypes.IMPLTYPEFLAGS flags;
classTypeInfo.GetImplTypeFlags(i, out flags);
if ((flags & ComTypes.IMPLTYPEFLAGS.IMPLTYPEFLAG_FSOURCE) != 0)
{
ScanSourceInterface(interfaceTypeInfo, ref events);
}
}
if (events.Count == 0)
{
events = ComTypeDesc.EmptyEvents;
}
}
lock (s_cacheComTypeDesc)
{
ComTypeDesc cachedTypeDesc;
if (s_cacheComTypeDesc.TryGetValue(typeAttr.guid, out cachedTypeDesc))
{
_comTypeDesc = cachedTypeDesc;
}
else
{
_comTypeDesc = typeDesc;
s_cacheComTypeDesc.Add(typeAttr.guid, _comTypeDesc);
}
_comTypeDesc.Events = events;
}
}