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Support Dynamic Policy Changes by Handling WM_SETTINGCHANGE Messages

[This is preliminary documentation and subject to change.]

Recommendation   (Designed for Microsoft® Windows® Logo)

Note This guideline applies to any products offered for sale under a site-license. This guideline does not apply to an application that is sold only at retail to consumers for a single user license, such as a game.

By handling WM_SETTINGCHANGE messages where LParam points to the user's policy, applications can respond to policy changes as they happen.