c#中怎样调用非托管DLL

Question

如题!

Answer 1

[DllImport("名称.dll",CharSet=CharSet.Ansi)]
        public static extern int 函数名(参数);

Answer 2

using System.Runtime.InteropServices;[DllImport("XXX.DLL",EntryPoint="GetApiFunction",SetLastError=true)]
public static extern int GetApiFunction(
    string strParaA,
    StringBuilder strParaB,
    int intParaC,
    out int intParaD,
    bool blnParaE);C++数据类型和C#的部分对应关系：C++           输入输出    C# 
==================================
char chr[255]   O    StringBuilder
KCA_DIR         I    int
LPCSTR          I    string
int             I    int
LPSTR           O    StringBuilder
int*            O    out int
DWORD           I    int
DWORD*          O    out int
BOOL            I    bool
Rc_DBMgr        I    IntPtr
long*           O    out long