CREATE

        pub const CREATE = packed struct(ULONG) {
            COMMON: FLAGS = .{},
            SEGMENT_HEAP: bool = false,
            /// Only applies to segment heap.  Applies pointer obfuscation which is
            /// generally excessive and unnecessary but is necessary for certain insecure
            /// heaps in win32k.
            ///
            /// Specifying HEAP_CREATE_HARDENED prevents the heap from using locks as
            /// pointers would potentially be exposed in heap metadata lock variables.
            /// Callers are therefore responsible for synchronizing access to hardened heaps.
            HARDENED: bool = false,
            Reserved10: u2 = 0,
            CLASS: CLASS = @fromBackingInt(@intCast(0)),
            /// Create heap with 16 byte alignment (obsolete)
            ALIGN_16: bool = false,
            /// Create heap call tracing enabled (obsolete)
            ENABLE_TRACING: bool = false,
            /// Create heap with executable pages
            ///
            /// All memory blocks that are allocated from this heap allow code execution, if the
            /// hardware enforces data execution prevention. Use this flag heap in applications that
            /// run code from the heap. If `ENABLE_EXECUTE` is not specified and an application
            /// attempts to run code from a protected page, the application receives an exception
            /// with the status code `STATUS_ACCESS_VIOLATION`.
            ENABLE_EXECUTE: bool = false,
            Reserved19: u13 = 0,

            pub const VALID_MASK: CREATE = .{
                .COMMON = .{
                    .NO_SERIALIZE = true,
                    .GROWABLE = true,
                    .GENERATE_EXCEPTIONS = true,
                    .ZERO_MEMORY = true,
                    .REALLOC_IN_PLACE_ONLY = true,
                    .TAIL_CHECKING_ENABLED = true,
                    .FREE_CHECKING_ENABLED = true,
                    .DISABLE_COALESCE_ON_FREE = true,
                },
                .CLASS = .MASK,
                .ALIGN_16 = true,
                .ENABLE_TRACING = true,
                .ENABLE_EXECUTE = true,
                .SEGMENT_HEAP = true,
                .HARDENED = true,
            };
        }