大约有 800 项符合查询结果（耗时：0.0103秒） [XML]
Why the switch statement cannot be applied on strings?
...f apparently not @MarmouCorp above but http://www.codeguru.com/cpp/cpp/cpp_mfc/article.php/c4067/Switch-on-Strings-in-C.htm
Uses two maps to convert between the strings and the class enum (better than plain enum because its values are scoped inside it, and reverse lookup for nice error messages).
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App Inventor 2 动态创建组件与布局教程 · App Inventor 2 中文网
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设计视图布局
Screen1
├── 标签：lblTitle（"动态问卷调查"）
├── 水平布局：ToolbarLayout
│ ├── 按钮：btnAddText...
Why do C++ libraries and frameworks never use smart pointers?
...reinvents the wheel. Even strings, Qt has QString, wxWidgets has wxString, MFC has the horribly named CString. Isn't a UTF-8 std::string good enough for 99% of GUI tasks?
– Inverse
Apr 26 '12 at 19:43
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throw new std::exception vs throw std::exception
...tions#what-to-catch
https://isocpp.org/wiki/faq/exceptions#catch-by-ptr-in-mfc
Basically "unless there's a good reason not to, catch by reference. Avoid catching by value, since that causes a copy to be made and the copy can have different behavior from what was thrown. Only under very special cir...
What is “stdafx.h” used for in Visual Studio?
... Historical curiosity. The name of stdafx.h dates from around 1992, when MFC was called 'Application Framework Extensions' before its release. Visual Studio 2015 still defaults to the name ..
– kert
Jan 9 '16 at 20:28
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What are the rules about using an underscore in a C++ identifier?
...riables, rather than local variables or parameters. If you've come from an MFC background, you'll probably use m_foo . I've also seen myFoo occasionally.
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使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网
...r。 VrWidgetView 类从 FrameLayout 扩展而来，包含 OpenGL 场景和控件。
具有包保护的 VrPanoramaRenderer 从 VrWidgetView 扩展而来，并实现位图加载逻辑，然后从 panowidget.aar 调用本机 arm 库 panorenderer。
VrWidgetView 同时包含 VrWidgetRenderer 和 VrEv...
Understanding events and event handlers in C#
... for your event handler. (Stupidly, OnXXX is taken to mean 'handle XXX' in MFC, and 'raise XXX' in .net, and so now its meaning is unclear and confusing - see this post for details ). Preferred names would be RaiseXXX to raise events, and HandleXXX or Sender_XXX to for event handlers.
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When does invoking a member function on a null instance result in undefined behavior?
...ber that succeeding falls within the universe of "undefined"!
Microsoft's MFC function GetSafeHwnd actually relies on this behavior. I don't know what they were smoking.
If you're calling a virtual function, the pointer must be dereferenced to get to the vtable, and for sure you're going to get UB...
Why Qt is misusing model/view terminology?
...at they call "View". Over the years I have worked with these frameworks:
MFC
Qt
Swing
SWT
WPF with MVVM
If you compare how the terms "Model" and "View" are used in these frameworks, and what responsibilities the classes in the "View", the "Model", and the "Controller" (if there is one) have, you...