); //ref. vs. [In, Out], see: https://www.pinvoke.net/default.aspx/kernel32.globalmemorystatusex
internal static (bool success, ulong total, ulong avail) GetTotalPhysAndAvailPhys()
{
var statEx = new MemoryStatusEx {
dwLength = (uint)Marshal.SizeOf(typeof(MemoryStatusEx))
};
return(GlobalMemoryStatusEx(ref statEx) ? (true, statEx.ullTotalPhys, statEx.ullAvailPhys) : ((bool success, ulong total, ulong avail))(false, 0, 0));
}
private static extern bool GlobalMemoryStatusEx(ref MemoryStatusEx lpBuffer
); //ref. vs. [In, Out], see: https://www.pinvoke.net/default.aspx/kernel32.globalmemorystatusex