CGXStylesMap::IsSystemStyle
BOOL IsSystemStyle(WORD wStyleId) const;
wStyleId
Specifies the base style.
Return Value
TRUE if the base style is a system style (non-removable). It is FALSE if the style is removable.
Remarks
Determines if a base style is removable.
When registering a base style with RegisterStyle, you can specify whether the style is a system style (not removable) or not.