知识大全 C#实现动态调用Windows DLL

Posted 2022-07-17 函数

篇首语：贪婪是最真实的贫穷，满足是最真实的财富。本文由小常识网(cha138.com)小编为大家整理，主要介绍了知识大全 C#实现动态调用Windows DLL相关的知识，希望对你有一定的参考价值。

C#实现动态调用Windows DLL 以下文字资料是由(全榜网网www.cha138.com)小编为大家搜集整理后发布的内容，让我们赶快一起来看一下吧！

　　部分代码来自于网络废话不多说上代码

　　调用方法

　　object obj = WinDllInvoke( Kernel dll Beep new object[] typeof(void));函数代码

　　 [System Runtime InteropServices DllImport( kernel )] private static extern IntPtr LoadLibrary(string lpLibFileName); [System Runtime InteropServices DllImport( kernel )] private static extern IntPtr GetProcAddress(IntPtr hModule string lpProcName); [System Runtime InteropServices DllImport( kernel )] private static extern IntPtr FreeLibrary(IntPtr hLibModule); /// /// 动态调用Windows DLL /// /// Dll文件名 /// 待调用的函数名 /// 函数参数 /// 返回值 /// 调用结果 private static object WinDllInvoke(string fileName string funName object[] objParams Type returnType) IntPtr libHandle = IntPtr Zero; try //获取函数地址 libHandle = LoadLibrary(fileName); if (libHandle == IntPtr Zero) return null; IntPtr procAddres = GetProcAddress(libHandle funName); if (procAddres == IntPtr Zero) return null; //获取参数类型 Type[] paramTypes = new Type[objParams Length]; for (int i = ; i < objParams Length; ++i) paramTypes[i] = objParams[i] GetType(); //构建调用方法模型 AssemblyName asembyName = new AssemblyName(); asembyName Name = WinDllInvoke_Assembly ; AssemblyBuilder asembyBuilder = AppDomain CurrentDomain DefineDynamicAssembly(asembyName AssemblyBuilderAccess Run); ModuleBuilder moduleBuilder = asembyBuilder DefineDynamicModule( WinDllInvoke ); MethodBuilder methodBuilder = moduleBuilder DefineGlobalMethod( InvokeFun MethodAttributes Public | MethodAttributes Static returnType paramTypes); //获取一个 ILGenerator 用于发送所需的 IL ILGenerator IL = methodBuilder GetILGenerator(); for (int j = ; j < paramTypes Length; ++j) //将参数压入堆栈 if (paramTypes[j] IsValueType) IL Emit(OpCodes Ldarg j); //By Value else IL Emit(OpCodes Ldarga j); //By Addrsss // 判断处理器类型 if (IntPtr Size == ) IL Emit(OpCodes Ldc_I procAddres ToInt ()); else if (IntPtr Size == ) IL Emit(OpCodes Ldc_I procAddres ToInt ()); else throw new PlatformNotSupportedException( 不好意思

cha138/Article/program/net/201311/12149