Alexandre Julliard (@julliard) commented about include/ntuser.h:
UINT default_imc; /* default input context */ UINT64 client_imm; /* client IMM thread info */ UINT64 wmchar_data; /* client data for WM_CHAR mappings */
- UINT64 vulkan_data; /* used by winevulkan for tls */
Do we really want to allow random libraries to add their data to the ntuser TLS?