將C風格的回調設置函數綁定到D

Question

我目前正在綁定GLFW3庫（由於各種原因，我沒有使用廢棄）的過程。這是很容易的做，不構成實際問題，以下情況除外：

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); 
} 

下面是原來的聲明之一（GLFW/GLFW3.h）的定義是：

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

這工作不夠好，在這個意義上它編譯，但是，它觸發了以下警告：

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 

谷歌搜索的有點讓我以下資源：http://dlang.org/function.html#closures

我不知道如何申請，雖然這一點，我已經試過這樣做，但是這顯然是行不通的：

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

這提供了以下錯誤：

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

我如何正確地轉換它，正確的方法？

Answer 1

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