CWnd::OnFontChange 

afx_msg void OnFontChange( );

Remarks

All top-level windows in the system receive an OnFontChange call from the framework after the application changes the pool of font resources.

An application that adds or removes fonts from the system (for example, through the AddFontResource or RemoveFontResource Windows function) should send the WM_FONTCHANGE message to all top-level windows.

To send this message, use the SendMessage Windows function with the hWnd parameter set to HWND_BROADCAST.

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See Also   ::AddFontResource, ::RemoveFontResource, ::SendMessage, WM_FONTCHANGE