将数组的数组传递到C＃中的DLL的安全方法是什么？ [英] What is a safe way to pass an array of arrays to a DLL in C#?

问题描述

我有一个要传递到DLL中的数组的数组。我遇到了错误嵌套数组没有封送支持。

I have an array of arrays that I want to pass into a DLL. I am running into the error "There is no marshaling support for nested arrays."

我可以很好地传递单个数组，但是如果将它们堆叠起来，它将失败。我需要/想要一种安全的方式来传递数组。

I can pass a single array in fine but if I stack them up it fails. I need/want a "safe" way of passing in the array of arrays.

private static extern int PrintStuff(string[][] someStringsInGroups, int numberOfGroups, int[] lengthSetsInGroups);

编辑：我也很乐意和痛苦地接受涉及封送处理的解决方案。 / p>

I am also willing, with enough discouragement and anguish, to accept a solution involving marshaling.

推荐答案

您可以将double数组转换为单个数组（即，将其展平）。这可以通过保留宽度和高度变量并按如下方式访问索引来完成：

You could convert the double array to a single array (i.e. flatten it). This can be done by keeping width and height variables, and accessing the indices as such:

string atXY = someStringsInSingleArray[(y * width) + x];

然后可以这样转换数组：

The array can then be converted as such:

string * array = new string[width * height];

for (unsigned int y = 0; y < height; ++y)
{
    for (unsigned int x = 0; x < width; ++x)
    {
        array[(y * width) + x] = someStringsInGroups[x][y];
    }
}

// (pass single array to dll)

delete [] array;

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