这是我试图在 C# 中使用的头文件签名和 C 代码:
__declspec(dllexport) emxArray_real_T *emxCreateWrapper_real_T(real_T *data, int32_T rows, int32_T cols);
struct emxArray_real_T
{
real_T *data;
int32_T *size;
int32_T allocatedSize;
int32_T numDimensions;
boolean_T canFreeData;
};
emxArray_real_T *emxCreateWrapper_real_T(real_T *data, int32_T rows, int32_T
cols)
{
emxArray_real_T *emx;
int32_T size[2];
int32_T numEl;
int32_T i;
size[0] = rows;
size[1] = cols;
emxInit_real_T(&emx, 2);
numEl = 1;
for (i = 0; i < 2; i++) {
numEl *= size[i];
emx->size[i] = size[i];
}
emx->data = data;
emx->numDimensions = 2;
emx->allocatedSize = numEl;
emx->canFreeData = FALSE;
return emx;
}
我目前正在尝试在 C# 中按如下方式调用它:
[DllImport(@"C:\bla\bla.dll", CallingConvention = CallingConvention.Cdecl)]
private static extern emxArray_real_T emxCreateWrapper_real_T(double[,] data, int rows, int cols);
double[,] array2D = new double[,] { { 1 }, { 3 }, { 5 }, { 7 } };
var x = emxCreateWrapper_real_T(array2D, 1, 4);
但得到:
Method's type signature is not PInvoke compatible.
emxArray_real_T
目前看起来像这样:
[StructLayout(LayoutKind.Sequential)]
public struct emxArray_real_T
{
//public IntPtr data;
//public IntPtr size;
double[] data;
int[] size;
public int allocatedSize;
public int numDimensions;
[MarshalAs(UnmanagedType.U1)]
public bool canFreeData;
}