virtual

I'd like to perform a click in a windows application, without using the real mouse (so I can minimize it). Much like a bot would behave. How would I do this? I think the function you're looking for is PostMessage [DllImport("user32.dll", SetLastError = true)] public static extern bool PostMessage(int hWnd, uint Msg, int wParam, int lParam); You can read more about it here on codeproject , and download a demo project, which sends keystrokes. This method posts messages directly on the input queue associated with the program, based on the process handle you use (hWnd) You can also use this

I'm developing a shared library. Let's say I have the following class definition: class MyClass { public: //public interface private: virtual void foo1(int); virtual void foo2(int, bool); virtual void foo3(double); virtual void reserved1(); virtual void reserved2(); virtual void reserved3(); class Impl; Impl* impl_; }; The reserved# virtual methods are not overridden in the client code and not called from anywhere. They serve as placeholders for future expansion. Let's say I replace one of the reserved methods with a virtual function with different signature and implementation: class MyClass {

I raised a question here but realized I was going the wrong direction. I need to create a virtual monitor (really just the space in memory) that is large enough to fit a website, that would normally span several screens. Is this possible in any language? I tried Java, but failed miserably so far. I don't expect this to be easy, any pointers would appreciated. I'd imagine the OS and the video cart would have to told in somehow that there's a third monitor. Use any Virtualization tool (VirtualBox, VMWare, etc). Create a Windows (XP/newer) virtual machine, and you can attach any number (well, at

前言 在三种情况下，会以一个 object 的内容作为另一个 class object 的初值： object明确初始化 class X{...}; X x; X xx = x; object 被当作参数交与某个函数 extern void foo(X x); void bar(){ X xx; foo(xx);//作为第一个参数的初值（不明显的初始化） } 函数返回值是一个 class object X foo_bar(){ X xx; ... return xx; } 如果开发者已经明确定义了一个copy constructor 如下： //copy constructor可以是多参数，其中有一个参数是其class type X::X(const X& x); Y::Y(const Y& y); 那么在大部分情况下，当 class object 以另一个同类实体作为初值时，上述 constructor 会被调用，这可能会导致一个暂时性 class object 的产生或程序代码发生改变（或二者都有）。 重新设定 Virtual Table 的指针 ​ 编译期间的扩张操作（只要有一个class声明了一个或多个virtual function）： 增加一个 virtual function table（vtbl），内含每一个有作用的 virtual function 的地址。

Possible Duplicate: Private virtual method in C++ If I understood correctly from this post ( Private virtual method in C++ ), making a virtual function in a base class makes the derived classes able to override it. But it seems things stop there. But if the base class virtual function is pure, that forces the derived classes to implement the function. Hence, a pure (public) virtual function is merely an interface. I can see a benefit here. On the other hand, by making a base class virtual function private, only gives the derived class the ability to override the function, but I see no benefit

I think you can and my colleage thinks you cannot! You can't even declare private virtual methods. The only time it would make any sense at all would be if you had: public class Outer { private virtual void Foo() {} public class Nested : Outer { private override void Foo() {} } } ... that's the only scenario in which a type has access to its parent's private members. However, this is still prohibited: Test.cs(7,31): error CS0621: 'Outer.Nested.Foo()': virtual or abstract members cannot be private Test.cs(3,26): error CS0621: 'Outer.Foo()': virtual or abstract members cannot be private Your