在C＃中设置dllimport的编程

问题描述：

我在我的解决方案使用的DllImport 。
我的问题是，我有两个版本的DLL对应一个专为32位，另一个用于64位相同。

I am using DllImport in my solution.
My problem is that I have two versions of the same DLL one built for 32 bit and another for 64 bit.

它们都提供了相同的功能，具有相同的名称和相同的签名。我的问题是，我不得不使用其中两个公开这些，然后在运行时使用的IntPtr 尺寸的静态方法来确定正确的调用。

They both expose the same functions with identical names and identical signatures. My problem is that I have to use two static methods which expose these and then at run time use IntPtr size to determine the correct one to invoke.

private static class Ccf_32
{
    [DllImport(myDllName32)]
    public static extern int func1();
}

private static class Ccf_64
{
    [DllImport(myDllName64)]
    public static extern int func1();
}

我必须这样做，因为 myDllName32 和 myDllName64 必须是恒定的，我还没有找到一种方法来设置它在运行时。

I have to do this because myDllName32 and myDllName64 must be constant and I have not found a way to set it at run time.

有没有人有这个，所以我可以摆脱code重复和不断的完善的解决方案的IntPtr 尺寸检查。

Does anyone have an elegant solution for this so I could get rid of the code duplication and the constant IntPtr size checking.

如果我可以设置文件名，我将只需要检查一次，我可以摆脱大量的重复code的。

If I could set the file name, I would only have to check once and I could get rid of a ton of repeated code.

答

您也许可以做到这一点与＃如果关键字。如果你定义一个名为的win32 条件编译符号，下面的code将使用Win32块，如果你删除它，将使用其它块：

You can probably achieve this with the #if keyword. If you define a conditional compiler symbol called win32, the following code will use the win32-block, if you remove it it will use the other block:

#if win32
    private static class ccf_32
    {
        [DllImport(myDllName32)]
        public static extern int func1();
    }
#else    
    private static class ccf_64
    {
        [DllImport(myDllName64)]
        public static extern int func1();
    }
#endif

这可能意味着，你可以删除类包装，你现在有：

This probably means that you can remove the class wrapping that you have now:

    private static class ccf
    {
#if win32
        [DllImport(myDllName32)]
        public static extern int func1();
#else    
        [DllImport(myDllName64)]
        public static extern int func1();
#endif
    }

为了方便起见，我想你可以控制编译符号创建构建配置。

For convenience, I guess you could create build configurations for controlling the compilation symbol.

在C＃中设置dllimport的编程

相关推荐