guid

问题 I've made a vbs script which basically toggles the close lid action between Sleep and DoNothing. The idea is to have an icon on my desktop to save going ControlPanel>PowerOptions>ChangeWhatClosingTheLidDoes every time. I'm on Windows 7 x64 by the way. When I run it, in control panel I can see that the lid close action changes, however when I actually close the lid, there is no change in behavior. Any suggestions on what could be preventing the system from obeying it's instructions?? It's

问题 I have experienced the need of generating UUID in LoadRunner several times while scripting but there is no in-build function to do so. I am using both linux and windows load generators. Thanks to Scott Moore for writing the below code which uses windows in-build CoCreateGuid function (dependent on ole32.dll) to generate required UUID. However that code is completely dependent on windows platform and doesn't work in Linux platform. How can we generate UUID from Loadrunner independent of OS?

问题 In the Windows SDK there is a CLI tool named computerhardwareids The tool returns various GUIDs to select the proper HardwareId for the specific case. This is the output that returns this tool in my PC: Using the BIOS to gather information Computer Information -------------------- BIOS Vendor: American Megatrends Inc. BIOS Version string: 1201 System BIOS Major Release: 4 System BIOS Minor Release: 6 System Manufacturer: To be filled by O.E.M. System Family: To be filled by O.E.M. System

问题 I have a piece of code that boils down to dim stmt as dao.queryDef dim parId as dao.parameter set stmt = currentDB().createQueryDef("", _ "parameters id guid, ...; insert into tab (id, ... ) values ([id], ...)") I created the table with create table tab ( id guid, ... ) and alter table tab add constraint tab_pk primary key (id) Later, I want to assign a GUID to parId : parId.value = GuidFromString("{936DA01F-9ABD-4D9D-80C7-02AF85C822A8}") This assignment causes a Run-time error 3421 : Data

问题 I need to find the GUID for an existing USB device attached to my Windows XP system. How can this be done using WMI or the registry? Or, is there another avenue that I should explore? Thanks. Additional Information: I need to find the GUID for a specific known device; it is not expected to change. If I need to write a little program, use some tool, or look somewhere in the Windows system to find this information, it's all the same to me. 回答1: For a specific known device, the easiest way I've

问题 What I am trying to is really quite straigh forward, but I cannot seem to get the mapping right with NHibernate. I am working up against a database with parent and child objects. The child objects have a foreign key reference to the primary key of the parent which is of datatype Guid. Pretty normal in any case. Now the database is set up in such a way that the foreign key field must never be null, so in case of orphan objects, with no parent, the foreign key should be an empty Guid ('00000000

问题 I'm hoping this is a simple goof I did on my end ... I have a table in my database set up like so: column name: widget_guid data type: uniqueidentifier allow nulls: false default value: newid() identity: false row guid: true When records are created (via LINQ to SQL) that the values in this field are formatted as a GUID but contain all 0's My assumption was that when a new record was created, that a guid would be autogenerated for that column, much like an auto-incrementing row id. Is this

问题 If I create a GUID using the constructor (say, Guid myGuid = new Guid("myguid") ), is there a higher chance that it would collide with a GUIDs created with Guid.NewGuid() vs. two GUIDs both created with Guid.NewGuid() ? EDIT: More specific question: Is there a greater chance to collide when comparing GUIDs based on a hash vs "Guid.NewGuid()? 回答1: The real answer is it depends. Guid.NewGuid creates it based on several factors described here. If you take the string representation of creating it

问题 I have problem that is really easily solved with Guids. In particular, for a password reset workflow, I would like to send a Guid token to a user's email and have them reset their password using the token. Since guids are unique, this is pretty secure and saves me emailing people passwords, which is risky. I noticed there is one Guid gem for Ruby; but it looks quite old, and it writes stuff to the file system. Does anyone know of any other gems that can create a globally unique identifier? I

问题 I have installed some MSI with GUID (0733556C-37E8-4123-A801-D3E6C5151617). The program registered in the registry: HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Uninstall \ () Value UninstallString = MsiExec.exe / I (0733556C-37E8-4123-A801-D3E6C5151617) My question is: how utility MsiExec.exe knows the name and path to the file you want to run when you remove programs? Where in the registry this information can be found? 回答1: Windows keeps Windows Installer