private static void TryGetILOffsetInfo(IDiaSession session, int rva, out int ilOffset)
{
IDiaEnumLineNumbers lineNumbers;
int hr = session.FindILOffsetsByRVA(rva, 1, out lineNumbers);
if (hr == S_OK)
{
int numLineNumbers;
hr = lineNumbers.Count(out numLineNumbers);
if (hr == S_OK && numLineNumbers > 0)
{
IDiaLineNumber ln;
hr = lineNumbers.Item(0, out ln);
if (hr == S_OK)
{
hr = ln.LineNumber(out ilOffset);
if (hr == S_OK)
{
return;
}
}
}
}
ilOffset = StackFrame.OFFSET_UNKNOWN;
}