struct _HEAP_SUBALLOCATOR_CALLBACKS// Size=0x14
{
    unsigned long Allocate;// Offset=0x0 Size=0x4
    unsigned long Free;// Offset=0x4 Size=0x4
    unsigned long Commit;// Offset=0x8 Size=0x4
    unsigned long Decommit;// Offset=0xc Size=0x4
    unsigned long ExtendContext;// Offset=0x10 Size=0x4
};