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c# - 在 64 位进程中加载​​ 32 位 dll

转载 作者:可可西里 更新时间:2023-11-01 10:06:00 24 4
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我希望我的 C# 应用程序有条件地运行 native 方法,有条件地选择运行 dll 的 x86 或 x64 版本。每当我尝试加载 32 位 dll 时,我都会收到以下错误:

Unhandled Exception: System.BadImageFormatException: An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)
at <exeName>.MiniDumpMethods.MiniDumpWriteDumpX86(IntPtr hProcess, UInt32 processId, SafeHandle hFile, MINIDUMP_TYPE dumpType, IntPtr expParam, IntPtr userStreamParam, IntPtr callbackParam)

背景上下文:我希望我的二进制文件获取给定进程的内存转储。根据进行内存转储的进程是 32 位还是 64 位,它将选择从 dbghelp.dll 的 x86 或 x64 版本运行 MiniDumpwriteDump 方法。

我目前正在做以下事情:

[SuppressUnmanagedCodeSecurity]
internal static class MiniDumpMethods
{
[DllImport("dbghelp.dll",
EntryPoint = "MiniDumpWriteDump",
CallingConvention = CallingConvention.StdCall,
CharSet = CharSet.Unicode,
ExactSpelling = true,
SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool MiniDumpWriteDump(
IntPtr hProcess,
uint processId,
SafeHandle hFile,
MINIDUMP_TYPE dumpType,
IntPtr expParam,
IntPtr userStreamParam,
IntPtr callbackParam);

[DllImport("dbghelpx86.dll",
EntryPoint = "MiniDumpWriteDump",
CallingConvention = CallingConvention.StdCall,
CharSet = CharSet.Unicode,
ExactSpelling = true,
SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool MiniDumpWriteDumpX86(
IntPtr hProcess,
uint processId,
SafeHandle hFile,
MINIDUMP_TYPE dumpType,
IntPtr expParam,
IntPtr userStreamParam,
IntPtr callbackParam);
}

知道如何有条件地加载 dll 的 x86 或 x64 版本吗?

(注:dbghelpx86.dll是我重命名的x86版本的dbghelp.dll)

谢谢

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