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[英]Unable to find an entry point named 'GetProcessID' in DLL 'kernel32.dll'
[英]C# EntryPointNotFoundException Unable to find an entry point named 'SetDllDirectory' in DLL 'kernel32.dll'
我正在尝试使用kernal32.dll中的几个函数。 但是,当我的应用程序尝试调用第一个函数时,它会抛出一个EntryPointNotFoundException Unable to find an entry point named 'SetDllDirectory' in DLL 'kernel32.dll'.
public class MyClass
{
/// <summary>
/// Use to interface to kernel32.dll for dynamic loading of similar DLLs.
/// </summary>
internal static class UnsafeNativeMethods
{
[DllImport("kernel32.dll", CharSet = CharSet.Ansi, ExactSpelling = true, SetLastError = true)]
internal static extern IntPtr LoadLibrary(string lpFileName);
[DllImport("kernel32.dll", CharSet = CharSet.Ansi, ExactSpelling = true, SetLastError = true)]
internal static extern bool SetDllDirectory(string lpPathName);
[DllImport("kernel32.dll", CharSet = CharSet.Ansi, ExactSpelling = true, SetLastError = true)]
internal static extern IntPtr GetProcAddress(IntPtr hModule, string procName);
}
private void MyFunc()
{
if (UnsafeNativeMethods.SetDllDirectory(_location) == false) // <-- Exception thrown here.
{
throw new FileNotFoundException(_location);
}
/* Some code. */
_dllHandle = UnsafeNativeMethods.LoadLibrary(_fullPath);
/* Some more code. */
_fptr = UnsafeNativeMethods.GetProcAddress(_dllHandle, _procName);
/* Yet even more code. */
}
}
任何关于我做错了什么以及如何让它工作的想法都将不胜感激。 谢谢。
您必须删除ExactSpelling属性。 该函数的真实名称是SetDllDirectoryW。 我还建议你使用CharSet.Auto,使用Ansi是一个有损转换,可能会导致细微的问题。 XP SP1之前的任何Windows版本都不提供导出功能。
我对DllImport
了解不多,但在我的机器上删除ExactSpelling
属性就行了。
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