Difference between revisions of "fcl-registry/es"
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+ | |||
+ | {{fcl-registry}} | ||
+ | |||
+ | fcl-registry es una unidad [[FCL]] que permite acceder al registro de Windows. | ||
+ | |||
+ | == Terminología del Registro == | ||
+ | |||
+ | El registro de Windows contiene un conjunto de entradas o apartados bien diferenciados que denominan "hives", que van creando una estructura en árbol a partir de su raiz "root". | ||
+ | |||
+ | RootKey: es la entrada "hive" que necesaria como comienzo para acceder al registro, como su nombre indica el la "llave raiz" comenzando con la H de Hive. | ||
+ | |||
+ | Ejemplos: HKEY_CLASSES_ROOT, HKEY_CURRENT_USER HKEY_LOCAL_MACHINE, HKEY_USERS, HKEY_CURRENT_CONFIG | ||
+ | |||
+ | Key: es la trayectoria al "directorio" que contiene los datos individuales. This is a bit counter-intuitive but a holdover con versiones previas del registro. | ||
+ | |||
+ | Name/value (Nombre/Valor): los pares actuales name/value en el directorio de la llave "Key" .Cada llave puede tener un valor por defecto cuyo valor es '' (una cadena vacía). | ||
+ | |||
+ | == Ejemplo == | ||
+ | |||
+ | Ejemplo que trata de obtener un valor: | ||
+ | |||
+ | <syntaxhighlight> | ||
+ | uses ... registry... | ||
+ | |||
+ | var | ||
+ | CompileCommand: string=''; | ||
+ | Registry: TRegistry; | ||
+ | begin | ||
+ | Registry := TRegistry.Create; | ||
+ | try | ||
+ | // Navigate to proper "directory": | ||
+ | Registry.RootKey := HKEY_LOCAL_MACHINE; | ||
+ | if Registry.OpenKeyReadOnly('\SOFTWARE\Classes\InnoSetupScriptFile\shell\Compile\Command') then | ||
+ | CompileCommand:=Registry.ReadString(''); //read the value of the default name | ||
+ | finally | ||
+ | Registry.Free; | ||
+ | end; | ||
+ | end; | ||
+ | </syntaxhighlight> | ||
+ | |||
+ | == Accessing 64 bit and 32 bit registry views == | ||
+ | If you have 64 bit Windows, the registry is split up into a 64 bit and 32 bit (compatibility) part. By default, if you run a 32 bit process, you see the 32 bit part; if you run a 64 bit application, you see the 64 bit part. | ||
+ | |||
+ | You can also access the 32 bit part from 64 bit applications and vice versa. From MSDN: | ||
+ | http://msdn.microsoft.com/en-us/library/windows/desktop/aa384129%28v=vs.85%29.aspx | ||
+ | * KEY_WOW64_64KEY: Access a 64-bit key from either a 32-bit or 64-bit application. | ||
+ | * KEY_WOW64_32KEY: Access a 32-bit key from either a 32-bit or 64-bit application. | ||
+ | These keys are defined in the registry unit so you can just use them: | ||
+ | e.g. in the registry object's Access property, like this: | ||
+ | <syntaxhighlight>Registry := TRegistry.Create; | ||
+ | Try | ||
+ | Registry.Access:=Registry.Access or KEY_WOW64_64KEY; | ||
+ | </syntaxhighlight> | ||
+ | |||
+ | or in the registry.create call, e.g. | ||
+ | <syntaxhighlight>TRegistry.Create(KEY_READ or KEY_WOW64_64KEY);</syntaxhighlight> | ||
+ | |||
+ | == Administrative privileges == | ||
+ | Depending on what you want to read/write in the registry, you may need administrator rights and elevation (Windows Vista+). Please see [[IDE_Window:_Project_Options#Use_manifest_file_to_set_execution_level_.28Windows_only.29]] | ||
+ | |||
+ | == See also == | ||
+ | [[Packages List]] | ||
+ | |||
+ | [[Category:FCL]] | ||
+ | [[Category:FPC]] | ||
+ | [[Category:Standard Units]] | ||
+ | |||
+ | |||
{{fcl-registry}} | {{fcl-registry}} | ||
Revision as of 12:12, 11 March 2016
│
English (en) │
español (es) │
русский (ru) │
fcl-registry es una unidad FCL que permite acceder al registro de Windows.
Terminología del Registro
El registro de Windows contiene un conjunto de entradas o apartados bien diferenciados que denominan "hives", que van creando una estructura en árbol a partir de su raiz "root".
RootKey: es la entrada "hive" que necesaria como comienzo para acceder al registro, como su nombre indica el la "llave raiz" comenzando con la H de Hive.
Ejemplos: HKEY_CLASSES_ROOT, HKEY_CURRENT_USER HKEY_LOCAL_MACHINE, HKEY_USERS, HKEY_CURRENT_CONFIG
Key: es la trayectoria al "directorio" que contiene los datos individuales. This is a bit counter-intuitive but a holdover con versiones previas del registro.
Name/value (Nombre/Valor): los pares actuales name/value en el directorio de la llave "Key" .Cada llave puede tener un valor por defecto cuyo valor es (una cadena vacía).
Ejemplo
Ejemplo que trata de obtener un valor:
uses ... registry...
var
CompileCommand: string='';
Registry: TRegistry;
begin
Registry := TRegistry.Create;
try
// Navigate to proper "directory":
Registry.RootKey := HKEY_LOCAL_MACHINE;
if Registry.OpenKeyReadOnly('\SOFTWARE\Classes\InnoSetupScriptFile\shell\Compile\Command') then
CompileCommand:=Registry.ReadString(''); //read the value of the default name
finally
Registry.Free;
end;
end;
Accessing 64 bit and 32 bit registry views
If you have 64 bit Windows, the registry is split up into a 64 bit and 32 bit (compatibility) part. By default, if you run a 32 bit process, you see the 32 bit part; if you run a 64 bit application, you see the 64 bit part.
You can also access the 32 bit part from 64 bit applications and vice versa. From MSDN: http://msdn.microsoft.com/en-us/library/windows/desktop/aa384129%28v=vs.85%29.aspx
- KEY_WOW64_64KEY: Access a 64-bit key from either a 32-bit or 64-bit application.
- KEY_WOW64_32KEY: Access a 32-bit key from either a 32-bit or 64-bit application.
These keys are defined in the registry unit so you can just use them: e.g. in the registry object's Access property, like this:
Registry := TRegistry.Create;
Try
Registry.Access:=Registry.Access or KEY_WOW64_64KEY;
or in the registry.create call, e.g.
TRegistry.Create(KEY_READ or KEY_WOW64_64KEY);
Administrative privileges
Depending on what you want to read/write in the registry, you may need administrator rights and elevation (Windows Vista+). Please see IDE_Window:_Project_Options#Use_manifest_file_to_set_execution_level_.28Windows_only.29
See also
│
English (en) │
español (es) │
русский (ru) │
Registry terms
RootKey (llave raíz): Entradas de registro de almacenaiento (registry hive) donde necesitas comenzar el acceso al registro. EJEMPLOS: HKEY_CLASSES_ROOT, HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE, HKEY_USERS, HKEY_CURRENT_CONFIG
Key (llave): la trayectoria al "directorio" que contiene los datos individuales. This is a bit counter-intuitive pero es un vestigio para mantener la compatibilidad con versiones anteriores del registro.
Name/value: the actual name/value pairs in the Key "directory". Each key can have a default value, whose name is (an empty string.
Example
Example that tries to get a value:
uses ... registry...
var
CompileCommand: string='';
Registry: TRegistry;
begin
Registry := TRegistry.Create;
try
// Navigate to proper "directory":
Registry.RootKey := HKEY_LOCAL_MACHINE;
if Registry.OpenKeyReadOnly('\SOFTWARE\Classes\InnoSetupScriptFile\shell\Compile\Command') then
CompileCommand:=Registry.ReadString(''); //read the value of the default name
finally
Registry.Free;
end;
end;