mirror of
https://github.com/reactos/reactos.git
synced 2026-09-09 02:44:55 +08:00
The `GWLP_USERDATA` window data is reserved for per-class data, thus, may be used by the dialog box class itself. Instead, use the dedicated `DWLP_USER` for storing custom per-dialog data. For more information, see: https://devblogs.microsoft.com/oldnewthing/20050303-00/?p=36293 https://devblogs.microsoft.com/oldnewthing/20061010-06/?p=29433 https://devblogs.microsoft.com/oldnewthing/20140203-00/?p=1893