[英]Return two dimensional array to excel from a c++ xll, the come back
First of all I know that the question was already asked here : 首先,我知道这个问题已经在这里提出了:
return multi dimension array to excel from c++ xll 从c ++ xll返回多维数组到excel
I have tried to revive the subject, without success. 我试图重振这个主题,但没有成功。 (The OP not being that active lately, never was.) That's why I am asking the question again, sorry in advance.
(OP最近没有那么活跃,从来没有。)这就是为什么我再次问这个问题,对不起。
I coded up a function returning a (row) one dimensional array : 我编写了一个返回(行)一维数组的函数:
__declspec(dllexport) LPXLOPER12 WINAPI Get1DArray(void)
{
static XLOPER12 xlArray;
XLOPER12 xlValues[2];
xlValues[0].xltype = xltypeNum;
xlValues[1].xltype = xltypeNum;
xlValues[0].val.num = 123;
xlValues[1].val.num = 456;
xlArray.xltype = xltypeMulti | xlbitDLLFree;
xlArray.val.array.rows = 1;
xlArray.val.array.columns = 2;
xlArray.val.array.lparray = &xlValues[0];
return static_cast<LPXLOPER12>(&xlArray);
}
that works. 这样可行。 I tried the same wrong thing the OP from question I was mentionning above tried (that's how I came across the question of his).
我在上面提到的问题中尝试了OP的同样错误尝试(这就是我遇到他的问题的方式)。
The only doc I have is the msdn for excel sdk, it did not help me. 我唯一的文档是excel sdk的msdn,它对我没有帮助。 The function I coded, I used an example found on the web.
我编写的函数,我使用了网上的示例。 Did not find any for two-dimensional array.
找不到任何二维数组。 I know Steve Dalton's books about xll, did not help.
我知道史蒂夫·道尔顿(Steve Dalton)有关xll的书并没有帮助。
I suspect multidimensional XLOPER12
arrays stock values in one-dimensional arrays, numbering by rows and columns or columns and rows, but did not succeed in exploiting this intuition... 我怀疑多维
XLOPER12
数组将一维数组中的值存储起来, XLOPER12
行和列或列和行进行编号,但未能成功利用这种直觉...
That's why I am here. 这就是为什么我在这里。
A simple example returning a 5*5 matrix. 一个简单的示例返回一个5 * 5矩阵。 Don't forget to free the allocated array via the
xlAutoFree12
function. 不要忘记通过
xlAutoFree12
函数释放分配的数组。
__declspec(dllexport) LPXLOPER12 WINAPI Get2DArray(void)
{
static XLOPER12 xlArray;
int rows = 5;
int cols = 5;
xlArray.xltype = xltypeMulti | xlbitDLLFree;
xlArray.val.array.rows = rows;
xlArray.val.array.columns = cols;
xlArray.val.array.lparray = reinterpret_cast<LPXLOPER12>(::malloc(rows * cols * sizeof(XLOPER12)));
for (int r=0;r<rows;r++)
{
for (int c=0;c<cols;c++)
{
XLOPER12* var = xlArray.val.array.lparray + ((r* cols) + c);
var->xltype = xltypeNum;
var->val.num = r*c;
}
}
return &xlArray;
}
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