internal static ComTypes.TYPEATTR GetTypeAttrForTypeInfo(ComTypes.ITypeInfo typeInfo) {
IntPtr pAttrs = IntPtr.Zero;
typeInfo.GetTypeAttr(out pAttrs);
// GetTypeAttr should never return null, this is just to be safe
if (pAttrs == IntPtr.Zero) {
throw Error.CannotRetrieveTypeInformation();
}
try {
return (ComTypes.TYPEATTR)Marshal.PtrToStructure(pAttrs, typeof(ComTypes.TYPEATTR));
} finally {
typeInfo.ReleaseTypeAttr(pAttrs);
}
}
internal static COM.TYPEATTR GetTypeAttr(COM.ITypeInfo typeinfo)
{
IntPtr pTypeAttr;
typeinfo.GetTypeAttr(out pTypeAttr);
COM.TYPEATTR typeattr = ClrFacade.PtrToStructure<COM.TYPEATTR>(pTypeAttr);
typeinfo.ReleaseTypeAttr(pTypeAttr);
return typeattr;
}
/// <summary>
/// returns id of an interface
/// </summary>
/// <param name="typeInfo"></param>
/// <returns></returns>
private static Guid GetTypeGuid(COMTypes.ITypeInfo typeInfo)
{
IntPtr attribPtr = IntPtr.Zero;
typeInfo.GetTypeAttr(out attribPtr);
COMTypes.TYPEATTR Attributes = (COMTypes.TYPEATTR)Marshal.PtrToStructure(attribPtr, typeof(COMTypes.TYPEATTR));
Guid typeGuid = Attributes.guid;
typeInfo.ReleaseTypeAttr(attribPtr);
return typeGuid;
}
internal static Guid GetTypeGuid(COMTypes.ITypeInfo typeInfo)
{
if (null == typeInfo)
return Guid.Empty;
IntPtr attribPtr = IntPtr.Zero;
typeInfo.GetTypeAttr(out attribPtr);
COMTypes.TYPEATTR Attributes = (COMTypes.TYPEATTR)Marshal.PtrToStructure(attribPtr, typeof(COMTypes.TYPEATTR));
Guid typeGuid = Attributes.guid;
typeInfo.ReleaseTypeAttr(attribPtr);
return typeGuid;
}
