public static IEnumerable <EVENT_TRACE_PROPERTIES> QueryAllTraces()
{
const int len = 64;
var props = new List <SafeHGlobalHandle>(len);
var loadProp = EVENT_TRACE_PROPERTIES.Create();
for (var i = 0; i < len; i++)
{
props.Add(SafeHGlobalHandle.CreateFromStructure(loadProp));
}
try
{
var pprops = props.Select(p => (IntPtr)p).ToArray();
AdvApi32.QueryAllTraces(pprops, len, out var count).ThrowIfFailed();
for (var i = 0; i < count; i++)
{
yield return(props[i].ToStructure <EVENT_TRACE_PROPERTIES>());
}
}
finally
{
for (var i = 0; i < props.Count; i++)
{
props[i].Dispose();
}
}
}