In gina, the system will list the domain name of the current system. How to get the primary domain name in your program? From the released the Windows2000 and NT source code, you can get the code of gina. It locate on \win2k\private\windows\gina\winlogon\usrpro.c. Here is the code:

If you don’t have Iphlpapi.lib installed, you can retrieve the local DNS server in the following way. The main step is load “Iphlpapi.dll” with ::LoadLibary method and call ::GetProcAddress to get the “GetNetworkParams”. Here is the full source:

Chinese verion author: Quaful@newsmth.net. When an ActiveX will be installed in IE, the authenticode information will be showed out. And how to get the information by programming? In microsoft KB323809: HOWTO: Get Information from Authenticode Signed Executables, there is a full example code. But it’s not very easy to use in your program directly. So [...]

When you want to get the RAM capacity of the graphics card installed on the computer, It’s more simple to use WMI class. You can give a look at the AdapterRAM attribute of Win32_VideoController. The Win32_VideoController WMI class represents the capabilities and management capacity of the video controller. AdapterRAM is one of its attibute: AdapterRAM [...]

We often look for some fixed serial numbers as an universal id. Usually we can use WMI class to retrieve  some hardware ID as following: Win32_BaseBoard Win32_Processor: ProcessorId Win32_BIOS: SerialNumber, ReleaseDate Win32_MotherboardDevice: InstallDate Win32_DiskDrive We can refer to MSDN WMI C++ Application Examples for some VC++ samples for the usage.But not all of the above WMI [...]

by Andreas Jdger The inspiration to write this code was to have an easy-to-use parser for functions given as string. You have a string like cos(x)-7*x/(1+x) and you want to compute some values, maybe for displaying the graph of the function. You can write code like this: CFunction* fkt = CFunction::Parse(“cos(x)-7*x/(1+x)”); long double y = [...]

Here is only a short introduction of the article, if you are interested, please goto the author’s website for the full text. Most people have heard of the standard auto_ptr smart pointer facility, but not everyone uses it daily. That’s a shame, because it turns out that auto_ptr neatly solves common C++ design and coding [...]

Question I have a text file with a lot of lines, and in each line, there are several columns divided by space character, but the number of columns in each line varies. For example, here is a sample ——————– abc 123 234 456 bsc 3 5 7 9 10 123 yyt 23 ——————– I want [...]

We offen need to store some binary data in the mdb database, thus we have to transefer the data by VARIANT structure.But how to read from binary data from VARIANT or write to? Here is a solution by safe array of VARRIANT.