AuthzEnumerateSecurityEventSources help about vanara HOT 3 CLOSED

Here is how you can use that method with exact memory allocation (correction from 30-06-2019 to leave memory intact as the structures use trailing memory to store strings and other pointer variables):

public SafeNativeArray<AUTHZ_SOURCE_SCHEMA_REGISTRATION> AuthzEnumerateSecurityEventSources()
{
   var len = 0U;
   AuthzEnumerateSecurityEventSources(0, IntPtr.Zero, out var cnt, ref len);
   Assert.That(len, Is.Not.Zero);
   var mem = Marshal.AllocHGlobal((int)len);
   if (!AuthzEnumerateSecurityEventSources(0, (IntPtr)mem, out cnt, ref len))
   {
      Marshal.FreeHGlobal(mem);
      Win32Error.ThrowLastError();
   }
   return new SafeNativeArray<AUTHZ_SOURCE_SCHEMA_REGISTRATION>(mem, len, true, 0, (int)cnt, true);
}

from vanara.

Had to change the code on my last comment and add some code to the SafeNativeArray class to truly support this scenario. Full code will be included in next release.

from vanara.

In the next release you'll find an overload to AuthzEnumerateSecurityEventSources that returns a list of SafeAUTHZ_SOURCE_SCHEMA_REGISTRATION classes. Should dramatically simplify its use, which after a day of digging, I found was a little complicated with all the required memory allocations.

from vanara.