Question

我目前正处于绑定GLFW3库的过程中（由于各种原因我不使用Derelict）。除了以下内容之外，这很容易做到并且没有任何实际问题：

extern (C) {
    alias void(*GLFWwindowposfun)(GLFWwindow*, int, int);
    alias void(*GLFWwindowsizefun)(GLFWwindow*, int, int);
    alias void(*GLFWwindowclosefun)(GLFWwindow*);
    alias void(*GLFWwindowrefreshfun)(GLFWwindow*);
    alias void(*GLFWwindowfocusfun)(GLFWwindow*, int);
    alias void(*GLFWwindowiconifyfun)(GLFWwindow*, int);
    alias void(*GLFWframebuffersizefun)(GLFWwindow*, int, int);
}

以下是如何定义原始声明之一（在GLFW / GLFW3.h中）：

typedef void (* GLFWwindowposfun)(GLFWwindow*,int,int);

这个的工作在编译的意义上已经足够了，但它会触发以下警告：

Source/MageLib/GLFW3.di(9): Deprecation: C-style function pointer and pointer to array syntax is deprecated. Use 'function' to declare function pointers
Source/MageLib/GLFW3.di(10): Deprecation: C-style function pointer and pointer to array syntax is deprecated. Use 'function' to declare function pointers
Source/MageLib/GLFW3.di(11): Deprecation: C-style function pointer and pointer to array syntax is deprecated. Use 'function' to declare function pointers
Source/MageLib/GLFW3.di(12): Deprecation: C-style function pointer and pointer to array syntax is deprecated. Use 'function' to declare function pointers
Source/MageLib/GLFW3.di(13): Deprecation: C-style function pointer and pointer to array syntax is deprecated. Use 'function' to declare function pointers
Source/MageLib/GLFW3.di(14): Deprecation: C-style function pointer and pointer to array syntax is deprecated. Use 'function' to declare function pointers
Source/MageLib/GLFW3.di(15): Deprecation: C-style function pointer and pointer to array syntax is deprecated. Use 'function' to declare function pointers

Googling的一些资源为我提供了以下资源：http://dlang.org/function.html#closures

我不知道如何应用这个，我已经尝试过这样做，但显然不起作用：

alias void function(GLFWwindow*, int, int);

这会产生以下错误：

Source/MageLib/GLFW3.di(9): Error: no identifier for declarator extern (C) void function(GLFWwindow*, int, int)

如何以正确的方式正确转换？

Answer 1

alias GLFWwindowposfun = void function（GLFWwindow *，int，int）;

将C风格的回调设置功能绑定到D.

1 个答案: