How should I pass lpszClassName when creating a WNDCLASS?

[jgcodes2020]

Title explains all. I'm not sure what the lifetime of the associated string should be. If it must last until application termination, I'd have to make a special wrapper class to keep the name referenced until then. If not, I can just use a fixed block.

[AArnott]

Same lifetime that a native code equivalent would be, presumably. I don't know what that is. But if that's an extended duration, merely defining a wrapper class won't necessarily ensure the pointer remains valid, since the GC can move memory around. You'd need to use a GCHandle to effectively pin a memory location long-term.