[英]Calling C/C++ method in C#
Suppose you have a library my_library.dll with following methods declared in it: 假设您有一个库my_library.dll,其中声明了以下方法:
int method_1(char *param1, unsigned long *param2, bool param3)
int method_2(char *param1, unsigned long *param2, bool param3, bool ¶m4, long ¶m5, char[1024] param6)
and you need to call them in C#. 并且您需要使用C#调用它们。 To call method_1 , I can do this:
要调用method_1 ,我可以这样做:
[DllImport("my_library.dll", EntryPoint = "method_1")]
static extern int mapped_method_1(string param1, UInt32 param2, byte param3)
and the mapped_method_1 can be called as regular C# method. 可以将Mapped_method_1称为常规C#方法。
Can somebody help me to do this for method_2 ? 有人可以帮我为method_2做这个吗? I am struggling how to map the "&" parameters and (possibly) the array.
我在努力映射“&”参数和(可能)数组。 I keep getting AccessViolationException - attempted to read or write protected memory
我不断收到AccessViolationException-尝试读取或写入受保护的内存
My goal is to call extraPutty API methods. 我的目标是调用extraPutty API方法。 I am able to call Connexion , but unable to call Connexion_F .
我可以打电话给Connexion ,但不能打电话给Connexion_F 。
http://www.extraputty.com/htmldoc/Chapter7.html http://www.extraputty.com/htmldoc/Chapter7.html
Try the following syntax: 尝试以下语法:
[DllImport("my_library.dll", EntryPoint = "method_2")]
static extern int mapped_method_2(string param1, UInt32 param2, byte param3, byte* param4, UInt32 param2, string param6)
This is what you are looking for 这就是你要找的
[DllImport("my_library.dll", EntryPoint = "method_2")]
static extern int mapped_method_2([MarshalAs(UnmanagedType.LPWStr)]string param1,
UInt32 param2, bool param3,
ref bool param4, ref long param5,
ref char[] param6);
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