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Embarcadero: C++Builder FAQ
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Registry
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How to read/write the registry?
Posted: 9 Jun 00
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The best way to access to the registry is using TRegistry class.
TRegistry *Path;
Registry has "Keys" and "Values". Keys are "like" directories and Values are "like" files.
With TRegistry class you can access to one Key setting the "RootKey" and then Open
a key below it.
Path=new TRegistry;
Path->RootKey=HKEY_LOCAL_MACHINE; // Or other Root key
Path->OpenKey("\\Software\\MySoftware",true); // Open or create
Then, you can access to single "Values" by name. They can be BinaryData, Bool, Currency, Date, DateTime, Float, String, Integer and Time.
// To assure you have a value :
if (!Path->ValueExists("MyValue")){
Path->WriteInteger("MyValue",_DEFAUL_VALUE);
}
// To Read :
int Value;
Value=Path->ReadInteger("MyKey");
// or
String Value;
Value=Path->ReadString("MyKey");
...
// Write :
int Value;
Path->WriteInteger("MyKey",Value);
// or
String Value;
Path->WriteInteger("MyKey",Value);
...
delete Path;
Ferran Casarramona |
Back to Embarcadero: C++Builder FAQ Index
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