{1|one}. TRegistry

Windows registry contains the system configuration,Office 2007 Key, machine hardware configuration, Win32 apps, and customers of other configuration details. Registry based on the program specifics is divided into six root keys (RootKey), which each have a root crucial sub-key and essential elements from the tree, each and every sub-key tasks on behalf of a certain configuration.
control working with C + + Builer registry important is to recognize the TRegistry class. In C + + Builder's VCL class library offers TRegistry class generated by the application instance of this class, we can obtain the control of the registry. In TRegistry class, the focus needs to be to grasp the subsequent questions:
one. TRegistry
produced class declaration we are able to not use the direct technique to create TRegistry instance, which VC + + employing HKEY straight develop situations of different ways. Need to be created TRegistry new instance with the class keyword, and then pass a pointer for the reputation of the variables. Specific operation is as follows:
TRegistry * curReg = new TRegistry; / / curReg name is actually a pointer of kind TRegistry
declaration to adopt this approach,Office 2010 Product Key, curReg the RootKey attribute factors for the HKEY_CURRENT_USER root important, the default action is completed for HKEY_CURRENT_USER.
2. The way to open and shut the key key
TRegistry class provides two member perform to open a main essential: OpenKey () and OpenKeyReadOnly () function. Which,Windows 7 Ultimate Key, OpenKey function also gives the perform to develop the main important.
OpenKey () has two parameters, KeyName and canCreate. canCreate can be a bool type parameter, when it really is set to true, when the existing does not exist below the root essential variable of type AnsiString KeyName pointed out the primary essential, you generate the primary key; or else noted within the primary crucial into the KeyName. If canCreate set to ########, but under the present root essential KeyName that there's no main important, the perform returns bogus.
OpenKeyReadOnly () perform, the function is to open a read-only primary important, if your parameter worth is NULL, then the position RootKey specified essential.
KeyName Parameters expressed in two approaches: absolute and relative route, stated route, said. Expressed through the absolute route, the string value need to be
following use inside the registry shall promptly simply call CloseKey () member perform Near the registry, and contact the delete approach will make use of the new release from the application memory room.
three. Erupted about the current key worth for that main key
we can use GetKeyNames () member operate to get the present primary key names of all sub-keys, with GetKeyInfo get alot more comprehensive specifics.
should be noted that though GetKeyNames () directions into the void __fastcall GetKeyNames (Courses:: TStrings * Strings), which is, its parameter type TString,Office 2007, but we are able to not in the outset instance of the TString class, and then utilised it being a parameter GetKeyNames (). This was mainly due TStrings class has an abstract composition. Our solution is to use a derived class TStringList TStrings class declare an instance with the TStrings as an alternative, and as a parameter for GetKeyNames () function.
in getting the title with the subkey,Microsoft Office 2010 Product Key, we are able to use to further figure out the in depth facts about operate. For example, we can use GetValueNames () with Read () and Compose () to acquire the worth with the primary crucial for even more facts. As an example: we need to read , accurate);
AnsiString ValueInfo = CurReg-> ReadString (