获取错误注入功能

注意

WHEA 错误注入接口需要具有 EINJ ACPI 表的计算机或实现 错误注入功能区域的 PSHED Plug-In。 大多数使用者系统不包含 EINJ 实现，并且 Windows 没有内置的 PSHED Plug-In来启用错误注入。 如果这两者都不存在，错误注入接口将返回错误。

用户模式应用程序可以通过调用 WHEAErrorInjectionMethods：：GetErrorInjectionCapabilitiesRtn 方法获取有关硬件平台的错误注入功能的信息。 此方法返回描述硬件平台支持的错误注入功能的 WHEA_ERROR_INJECTION_CAPABILITIES 结构。

以下代码示例演示如何检索错误注入功能信息。

IWbemServices *pIWbemServices;
BSTR ClassName;
BSTR MethodName;
HRESULT Result;
IWbemClassObject *pOutParameters;
VARIANT Parameter;
ULONG Status;
WHEA_ERROR_INJECTION_CAPABILITIES ErrorInjectionCapabilities;

// The following example assumes that the application
// has previously connected to WMI on the local machine
// and that the pIWbemServices variable contains the
// pointer that was returned from the call to the
// IWbemLocator::ConnectServer method.

// Specify the class and method to execute
ClassName = SysAllocString(L"WHEAErrorInjectionMethods");
MethodName = SysAllocString(L"GetErrorInjectionCapabilitiesRtn");

// Call the GetErrorInjectionCapabilitiesRtn method indirectly
// by calling the IWbemServices::ExecMethod method.
Result =
  pIWbemServices->ExecMethod(
    ClassName,
    MethodName,
    0,
    NULL,
    NULL,
    &pOutParameters,
    NULL
    );

// Get the status from the output parameters object
Result =
  pOutParameters->Get(
    L"Status",
    0,
    &Parameter,
    NULL,
    NULL
    );
Status = Parameter.ulVal;
VariantClear(&Parameter);

// Get the capabilities from the output parameters object
Result =
  pOutParameters->Get(
    L"Capabilities",
    0,
    &Parameter,
    NULL,
    NULL
    );
ErrorInjectionCapabilities.AsULONG = Parameter.ulVal;
VariantClear(&Parameter);

// Process the error injection capabilities data
...

// Free up resources
SysFreeString(ClassName);
SysFreeString(MethodName);
pOutParameters->Release();