C#判断DLL文件是32位还是64位的示例代码

using system;
using system.io;

namespace getdllversiondemo
{
/// <summary>
///     https://www.cnblogs.com/lifedecideshappiness/p/15711169.html
///     c#判断dll文件是32位还是64位
///     ldh @ 2021-12-20
/// </summary>
internal class program
{
private static void main()
{
console.title = "c#判断dll文件是32位还是64位";

getdll32or64();

            console.readkey();
}

        private static void getdll32or64()
{
var dllpath = path.combine(appdomain.currentdomain.basedirectory, @"dll\ibm.data.informix.dll");
var result = getpearchitecture(dllpath);
//523 64位    267 32位
if (result == 523)
console.writeline(dllpath + "是【64】位的dll");
else if (result == 267)
console.writeline(dllpath + "是【32】位的dll");
else
console.writeline("执行错误！");
}

        /// <summary>
///     获取dll文件是32位还是64位
///     523 64位    267 32位
/// </summary>
/// <param name="dllfilepath">dll文件路径</param>
/// <returns></returns>
public static ushort getpearchitecture(string dllfilepath)
{
ushort architecture = 0;

            try
{
using (var fstream = new filestream(dllfilepath, filemode.open, fileaccess.read))
{
using (var breader = new binaryreader(fstream))
{
if (breader.readuint16() == 23117) //check the mz signature
{
fstream.seek(0x3a, seekorigin.current); //seek to e_lfanew.
fstream.seek(breader.readuint32(), seekorigin.begin); //seek to the start of the nt header.
if (breader.readuint32() == 17744) //check the pe\0\0 signature.
{
fstream.seek(20, seekorigin.current); //seek past the file header,
architecture = breader.readuint16(); //read the magic number of the optional header.
}
}
}
}
}
catch
{
// ignored
}

            // if architecture returns 0, there has been an error.
return architecture;
}
}
}