RegistryQueryValue (Function)

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Limitations of the RegistryQueryValue function

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RegistryQueryValue (Function)

In french: RegistreLit

Reads a value in the Windows registry.

Example

See additional examples

// Lit la valeur "Langage" dans la clé "HKEY_LOCAL_MACHINE\SOFTWARE\Appli"
// Le booléen ResExécute permet de savoir si la valeur a été lue
ResLecture = RegistryQueryValue("HKEY_LOCAL_MACHINE\SOFTWARE\Appli", "Langage", ResExécute)

IF ResExécute = True THEN
	Info("La valeur a été lue et vaut: " + ResLecture)
END

Syntax

Reading a value identified by its name Hide the details

<Result> = RegistryQueryValue([<Access mode>, ] <Key path> , <Value name> [, <Execution>])

<Result>: Character string, integer, real or pointer

Value read,
Empty string ("") if no value was read.

<Access mode>: Integer constant

Registry access mode:
registryMode32 Forced mode to access the registry as a 32-bit program.
registryMode64 Forced mode to access the registry as a 64-bit program.
registryModeAuto
(Default value) Automatic registry access mode:
a 32-bit application running on a 32-bit system manipulates the registry as a 32-bit program.
a 32-bit application running on a 64-bit system manipulates the registry from the following branch:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node
a 64-bit application running on a 64-bit system manipulates the registry as a 64-bit program.

<Key path>: Character string

Full path of key to read.

<Value name>: Character string

Name of value to read.

<Execution>: Optional boolean

True if the value was read,
False otherwise.

Reading a value identified by its index Hide the details

<Result> = RegistryQueryValue([<Access mode>, ] <Key path> , <Value index> , <Execution>)

<Result>: Character string, integer, real or pointer

Value read,
Empty string ("") if no value was read.

<Access mode>: Integer constant

Registry access mode:
registryMode32 Forced mode to access the registry as a 32-bit program.
registryMode64 Forced mode to access the registry as a 64-bit program.
registryModeAuto
(Default value) Automatic registry access mode:
a 32-bit application running on a 32-bit system manipulates the registry as a 32-bit program.
a 32-bit application running on a 64-bit system manipulates the registry from the following branch:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node
a 64-bit application running on a 64-bit system manipulates the registry as a 64-bit program.

<Key path>: Character string

Full path of key to read.

<Value index>: Integer

Index of the value to be read.

<Execution>: Boolean

True if the value was read,
False otherwise.

Remarks

Limitations of the RegistryQueryValue function

RegistryQueryValue has no effect on "(default)" entries. These are specific entries. To reach these entries, the name of the key must be replaced with an empty string.

Example:

Don't:

RegistryQueryValue("HKEY_CLASSES_ROOT\.jar", "(par défaut)", "myfile")

Do:

RegistryQueryValue("HKEY_CLASSES_ROOT\.jar", "", "myfile")

Business / UI classification: Business Logic

Component: wd300std.dll

See also

Minimum version required

Version 9

This page is also available for…

Comments

Example

PROCEDURE TaskManager(bEnableDisable is boolean)

//Buscar
ResExist1 is boolean = RegistryExist("HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\")
ResExist2 is boolean = RegistryExist("HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System")

//Criar se nao existe a Pasta System
IF ResExist1 = True AND ResExist2 = False THEN
//cria a pasta da esquerda
RegistryCreateKey("HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System")
//cria a chave DisableTaskMgr tipo DWORD 32 dentro da Pasta
RegistrySetValue("HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System","DisableTaskMgr",0)
END

if bEnableDisable = false
RegistrySetValue("HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System","DisableTaskMgr",1) //disable

else

RegistrySetValue("HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System","DisableTaskMgr",0) //enable

end

BOLLER

27 Nov. 2018

Exemplo Resgistro Windows - Ler e Gravar

//-- Global
PROCEDURE MyWindow()
gn_id_usuario is int=0
//Global declarations
_chave_senha is string="HKEY_CURRENT_USER\Software\erpmatos\"
//----------------------
//--End of

//Ler Chave
n_usuario is int=RegistryQueryValue(_chave_senha,"Usuario")
CBOX_salvar=RegistryQueryValue(_chave_senha,"Salvar")
IF CBOX_salvar=True THEN
COMBO_Usuario_matos_1=n_usuario
LSV_Usuario_matos=n_usuario
s_senha is string=RegistryQueryValue(_chave_senha,"Senha")
EDT_senha = Uncrypt(s_senha, "Password")
END
//-----------------------
//Gravar Chave
//Check box Salvar
n_usuario is int=0
IF RegistryExist(_chave_senha) = False THEN
RegistryCreateKey(_chave_senha)
END
n_usuario=COMBO_Usuario_matos_1
s_nome_usuario is string=""
RegistrySetValue(_chave_senha,"Usuario",n_usuario)
RegistrySetValue(_chave_senha,"Senha",Crypt(EDT_senha,"Password"))
HReadSeekFirst(usuario_matos,usuario_matosID,n_usuario)
IF HFound(usuario_matos) THEN
RegistrySetValue(_chave_senha,"UsuarioNome",s_nome_usuario)
ELSE
RegistrySetValue(_chave_senha,"UsuarioNome","")
END
IF CBOX_salvar=True THEN
RegistrySetValue(_chave_senha,"Salvar",1)
ELSE
RegistrySetValue(_chave_senha,"Salvar",0)
END
//--
//--Botao Salvar
IF CBOX_salvar=True THEN
n_usuario is int=0
n_usuario=COMBO_Usuario_matos_1
RegistrySetValue(_chave_senha,"Usuario",n_usuario)
RegistrySetValue(_chave_senha,"Senha",Crypt(EDT_senha,"Password"))
RegistrySetValue(_chave_senha,"UsuarioNome",gs_usuario_nome)
END

//Blog Video e Exemplo
http://windevdesenvolvimento.blogspot.com.br/2016/03/curso-windev-registro-windows-001.html

De matos AMARILDO

28 Mar. 2016

Last update: 09/21/2024

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