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问题描述
我喜欢在我的c#应用程序中导入c ++ dll我该怎么办?我需要使用什么概念?
解决方案>假设这个使用MinGW编译的DLL。 在C-sharp你可以遵循这个代码:
使用System.Runtime.InteropServices; 使用系统; class call_dll { [StructLayout(LayoutKind.Sequential,Pack = 1)] private struct STRUCT_DLL { public Int32 count_int; public IntPtr ints; } [DllImport(mingw_dll.dll)] private static extern int func_dll( int an_int, [MarshalAs(UnmanagedType.LPArray )] byte [] string_filled_in_dll, ref STRUCT_DLL s ); public static void Main(){ byte [] string_filled_in_dll = new byte [21]; STRUCT_DLL struct_dll = new STRUCT_DLL(); struct_dll.count_int = 5; int [] ia = new int [5]; ia [0] = 2; ia [1] = 3; ia [2] = 5; ia [3] = 8; ia [4] = 13; GCHandle gch = GCHandle.Alloc(ia); struct_dll.ints = Marshal.UnsafeAddrOfPinnedArrayElement(ia,0); int ret = func_dll(5,string_filled_in_dll,ref struct_dll); Console.WriteLine(返回值:+ ret); Console.WriteLine(String filled in DLL:+ System.Text.Encoding.ASCII.GetString(string_filled_in_dll)); } } $ / pre>i like import c++ dll in my c# application how can i Do this?, what is concept i need to use for this?
解决方案suppose this DLL that compile with MinGW. in C-sharp you can follow this code:
using System.Runtime.InteropServices; using System; class call_dll { [StructLayout(LayoutKind.Sequential, Pack=1)] private struct STRUCT_DLL { public Int32 count_int; public IntPtr ints; } [DllImport("mingw_dll.dll")] private static extern int func_dll( int an_int, [MarshalAs(UnmanagedType.LPArray)] byte[] string_filled_in_dll, ref STRUCT_DLL s ); public static void Main() { byte[] string_filled_in_dll = new byte[21]; STRUCT_DLL struct_dll = new STRUCT_DLL(); struct_dll.count_int = 5; int[] ia = new int[5]; ia[0] = 2; ia[1] = 3; ia[2] = 5; ia[3] = 8; ia[4] = 13; GCHandle gch = GCHandle.Alloc(ia); struct_dll.ints = Marshal.UnsafeAddrOfPinnedArrayElement(ia, 0); int ret=func_dll(5,string_filled_in_dll, ref struct_dll); Console.WriteLine("Return Value: " + ret); Console.WriteLine("String filled in DLL: " + System.Text.Encoding.ASCII.GetString(string_filled_in_dll)); } }
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我如何在c#中使用c ++ dll
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