System.Byte []是什麼你可能尋找。
對不起沒有BYTE * ... []。
一些代碼
extern "C" UNMANAGEDCPP_API int fnUnmanagedCpp(BYTE* test[], int nRows, int nCols)
{
//do stuff
std::cout << "called!" << std::endl;
for (int i = 0; i < nRows; ++i)
{
for (int j = 0; j < nCols; ++j)
{
std::cout << int (test[i][j]) << std::endl;
}
}
test[0][0] = 23;
return 0;
}
而在C#:
[DllImport("UnmanagedCpp.dll", CallingConvention=CallingConvention.Cdecl)]
public static extern int fnUnmanagedCpp(IntPtr[] buffer, int nRows, int nCols);
public static IntPtr[] Marshall2DArray(byte[][] inArray)
{
IntPtr[] rows = new IntPtr[inArray.Length];
for (int i = 0; i < inArray.Length; ++i)
{
rows[i] = Marshal.AllocHGlobal(inArray[i].Length * Marshal.SizeOf(typeof(byte)));
Marshal.Copy(inArray[i], 0, rows[i], inArray[i].Length);
}
return rows;
}
public static void Copy2DArray(IntPtr[] inArray, byte[][] outArray)
{
Debug.Assert(inArray.Length == outArray.Length);
int nRows = Math.Min(inArray.Length, outArray.Length);
for (int i = 0; i < nRows; ++i)
{
Marshal.Copy(inArray[i], outArray[i], 0, outArray[i].Length);
}
}
public static void Free2DArray(IntPtr[] inArray)
{
for (int i = 0; i < inArray.Length; ++i)
{
Marshal.FreeHGlobal(inArray[i]);
}
}
static void Main(string[] args)
{
byte[][] bTest = new byte[2][] { new byte[2] { 1, 2 }, new byte[2] { 3, 4 } };
IntPtr[] inArray = Marshall2DArray(bTest);
fnUnmanagedCpp(inArray, 2, 2);
Copy2DArray(inArray, bTest);
Free2DArray(inArray);
System.Console.WriteLine(bTest[0][0]);
}
我希望這可以幫助,也許有這樣做的另一個更好/更簡單的方法。請注意,該代碼僅用於「插圖」,並可能包含錯誤。
基本上一個傳入IntPtrs的陣列,並且手動編組...
然後,我送的一個維陣列,可容納只有一個系列的字節。但似乎C++函數想要一個2維數組! – losingsleeep 2011-01-07 09:11:53