/// <summary>
/// Converts a MethodBase[] into a MethodInformation[]
/// </summary>
/// <returns>the ComMethodInformation[] corresponding to methods</returns>
internal static ComMethodInformation[] GetMethodInformationArray(COM.ITypeInfo typeInfo, Collection<int> methods, bool skipLastParameters)
{
int methodCount = methods.Count;
int count = 0;
ComMethodInformation[] returnValue = new ComMethodInformation[methodCount];
foreach (int index in methods)
{
IntPtr pFuncDesc;
typeInfo.GetFuncDesc(index, out pFuncDesc);
COM.FUNCDESC funcdesc = ClrFacade.PtrToStructure<COM.FUNCDESC>(pFuncDesc);
returnValue[count++] = ComUtil.GetMethodInformation(funcdesc, skipLastParameters);
typeInfo.ReleaseFuncDesc(pFuncDesc);
}
return returnValue;
}
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);
}
}
}
}
internal static COM.FUNCDESC GetFuncDesc(COM.ITypeInfo typeinfo, int index)
{
IntPtr pFuncDesc;
typeinfo.GetFuncDesc(index, out pFuncDesc);
COM.FUNCDESC funcdesc = ClrFacade.PtrToStructure<COM.FUNCDESC>(pFuncDesc);
typeinfo.ReleaseFuncDesc(pFuncDesc);
return funcdesc;
}