Question

如何在驱动程序模式下从Registry获取64位值。我可以获得32位值（REG_DWORD）。但是64位值（REG_QWORD）不能。这是一个代码：

RTL_QUERY_REGISTRY_TABLE parameters[2];
RtlZeroMemory(parameters, sizeof(parameters));

parameters[0].Flags = RTL_QUERY_REGISTRY_DIRECT;
parameters[0].Name = L"MaxTotalSize";
parameters[0].EntryContext = &Globals.g_MaxTotalSize;
parameters[0].DefaultType = REG_DWORD;  //But REG_QWORD doesn't work, what i must to write?
parameters[0].DefaultData = &Globals.g_MaxTotalSize;
parameters[0].DefaultLength = 4;        //And here what I must to write?

status = RtlQueryRegistryValues(
        RTL_REGISTRY_ABSOLUTE | RTL_REGISTRY_OPTIONAL,
        RegistryPath->Buffer,
        parameters,
        NULL,
        NULL
        );

Answer 1

这里我试图从注册表中获取64位值：

RTL_QUERY_REGISTRY_TABLE parameters[2];
RtlZeroMemory(parameters, sizeof(parameters));

parameters[0].Flags = RTL_QUERY_REGISTRY_DIRECT;
parameters[0].Name = L"MaxTotalSize";
parameters[0].EntryContext = &Globals.g_MaxTotalSize;
parameters[0].DefaultType = REG_QWORD;  
parameters[0].DefaultData = &Globals.g_MaxTotalSize;
parameters[0].DefaultLength = 8;        

status = RtlQueryRegistryValues(
        RTL_REGISTRY_ABSOLUTE | RTL_REGISTRY_OPTIONAL,
        RegistryPath->Buffer,
        parameters,
        NULL,
        NULL
        );

Globals.g_MaxTotalSize ULONGLONG 类型

在驱动程序模式下从Registry获取64位值

1 个答案: