windows - 如何从 Powershell 调用 GetStdHandle、GetConsoleMode？

Question

尝试使用 the Add-Type approach 从 Powershell 脚本读取当前 Windows 控制台模式时出现错误:

$MethodDefinitions = @'
[DllImport("kernel32.dll", SetLastError = true)]
static extern IntPtr GetStdHandle(int nStdHandle);
[DllImport("kernel32.dll", SetLastError = true)]
static extern bool GetConsoleMode(IntPtr hConsoleHandle, out uint lpMode);
'@
$Kernel32 = Add-Type -MemberDefinition $MethodDefinitions -Name 'Kernel32' -Namespace 'Win32' -PassThru
$hConsoleHandle = $Kernel32::GetStdHandle(-11) # STD_OUTPUT_HANDLE 
$lpMode = 0
$Kernel32::GetConsoleMode($hConsoleHandle, $lpMode)

但我收到以下警告和错误:

WARNING: The generated type defines no public methods or properties.
Method invocation failed because [Win32.Kernel32] does not contain a method named 'GetStdHandle'.
At C:\Users\John\get_console_mode.ps1:8 char:1
+ $hConsoleHandle = $Kernel32::GetStdHandle(-11) # STD_OUTPUT_HANDLE
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : MethodNotFound

Method invocation failed because [Win32.Kernel32] does not contain a method named 'GetConsoleMode'.
At C:\Users\John\get_console_mode.ps1:10 char:1
+ $Kernel32::GetConsoleMode($hConsoleHandle, $lpMode)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : MethodNotFound

知道我做错了什么吗？

更新:根据已接受的答案，这是更正后的代码:

$MethodDefinitions = @'
[DllImport("kernel32.dll", SetLastError = true)]
public static extern IntPtr GetStdHandle(int nStdHandle);
[DllImport("kernel32.dll", SetLastError = true)]
public static extern bool GetConsoleMode(IntPtr hConsoleHandle, out uint lpMode);
'@
$Kernel32 = Add-Type -MemberDefinition $MethodDefinitions -Name 'Kernel32' -Namespace 'Win32' -PassThru
$hConsoleHandle = $Kernel32::GetStdHandle(-11) # STD_OUTPUT_HANDLE 
$mode = 0
$Kernel32::GetConsoleMode($hConsoleHandle, [ref]$mode)

Answer 1

尝试使用以下方法定义(我刚刚添加了 public 访问修饰符)

$MethodDefinitions = @'
[DllImport("kernel32.dll", SetLastError = true)]
public static extern IntPtr GetStdHandle(int nStdHandle);
[DllImport("kernel32.dll", SetLastError = true)]
public static extern bool GetConsoleMode(IntPtr hConsoleHandle, out uint lpMode);
'@