From MSDN:
Use the SetClassLong function with care. For example, it is possible to change the background color for a class by using SetClassLong, but this change does not immediately repaint all windows belonging to the class加一句:InvalidateRect(GetSafeHwnd(), NULL, TRUE);试试?
Use the SetClassLong function with care. For example, it is possible to change the background color for a class by using SetClassLong, but this change does not immediately repaint all windows belonging to the class加一句:InvalidateRect(GetSafeHwnd(), NULL, TRUE);试试?
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