Question

我已经通过Windows WMI实现了远程hyper-v管理类，但是对于ENTER键， keycode 是什么。
方法是“PressKey”，类是Hyper-V WMI类中的Msvm_Keyboard类。
示例代码在PressKey method of the Msvm_Keyboard class中上面示例中ENTER键的第二个参数是什么？
根据{{3}}，它必须是“0”或“0x0D”，但这个样本都不能接受它们！

示例代码：

class PressKeyClass
{
    static ManagementObject GetComputerKeyboard(ManagementObject vm)
    {
        ManagementObjectCollection keyboardCollection = vm.GetRelated
        (
            "Msvm_Keyboard",
            "Msvm_SystemDevice",
            null,
            null,
            "PartComponent",
            "GroupComponent",
            false,
            null
        );

        ManagementObject keyboard = null;

        foreach (ManagementObject instance in keyboardCollection)
        {
            keyboard = instance;
            break;
        }

        return keyboard;
    }

    static void PressKey(string vmName, int keyCode)
    {
        ManagementScope scope = new ManagementScope(@"root\virtualization", null);
        ManagementObject vm = Utility.GetTargetComputer(vmName, scope);
        ManagementObject keyboard = GetComputerKeyboard(vm);

        ManagementBaseObject inParams = keyboard.GetMethodParameters("PressKey");

        inParams["keyCode"] = keyCode;

        ManagementBaseObject outParams = keyboard.InvokeMethod("PressKey", inParams, null);

        if ((UInt16)outParams["ReturnValue"] == ReturnCode.Completed)
        {
            string.Format("Key {0} was pressed on {1}", keyCode, vm["ElementName"]);
        }
        else
        {
            string.Format("Unable to press key {0}' on {1}", keyCode, vm["ElementName"]);
        }

        inParams.Dispose();
        outParams.Dispose();
        keyboard.Dispose();
        vm.Dispose();
    }

    static void Main(string[] args)
    {
        if (args != null && args.Length != 2)
        {
            Console.WriteLine("Usage: PressKey vmName keyCode");
            return;
        }
        string vmName = args[0];
        int keyCode = int.Parse(args[1]);
        PressKey(args[0], keyCode);
    }

}

Answer 1

我发现了这个问题。代码“0x0D”对于输入密钥是正确的，但Microsoft示例代码中存在错误。 PressKey method of the Msvm_Keyboard class
在第40行：

if ((UInt16)outParams["ReturnValue"] == ReturnCode.Completed)

上面的演员是不正确的，然后我认为虚拟键码不正确。

什么是ENTER键的虚拟键代码？

1 个答案: