warning C4541: 'dynamic_cast' used on polymorphic type 'class CWnd' with /GR-; unpredictable behavio
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是因为没有打开run-time type information 支持就使用'dynamic_cast'
菜单project－setting－c/c++
c++ language - enable run-time type information (RTTI)
- warning C4541: 'dynamic_cast' used on polymorphic type 'class CWnd' with /GR-; unpredictable behavio
- warning C4541: 'dynamic_cast' used on polymorphic type 'class CWnd' with /GR-; unpredictable behavior may result
- warning C4541: 'dynamic_cast' used on polymorphic type 'class CWnd' with /GR-; unpredictable behavi
- warning C4541: 'dynamic_cast' used on polymorphic type 'class MyObject' with /GR-; unpredictable beh
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