.net - 如何确定 System.Diagnostics.Process 是 32 位还是 64 位？

Question

我试过:

process.MainModule.FileName.Contains("x86")

但是它为 x64 进程抛出了一个异常:

Win32Exception: Only a part of the ReadProcessMemory ou WriteProcessMemory request finished

Answer 1

您需要调用IsWow64Process通过 P/调用:

[DllImport( "kernel32.dll", SetLastError = true, CallingConvention = CallingConvention.Winapi )]
[return: MarshalAs( UnmanagedType.Bool )]
public static extern bool IsWow64Process( [In] IntPtr processHandle, [Out, MarshalAs( UnmanagedType.Bool )] out bool wow64Process );

这里有一个帮助程序，可以更轻松地调用:

public static bool Is64BitProcess( this Process process )
{
    if ( !Environment.Is64BitOperatingSystem )
        return false;

    bool isWow64Process;
    if ( !IsWow64Process( process.Handle, out isWow64Process ) )
        throw new Win32Exception( Marshal.GetLastWin32Error() );

    return !isWow64Process;
}