SysChangeEnvironment (Function)

ONLINE HELP
WINDEV, WEBDEV AND WINDEV MOBILE

Version:

Home | Sign in | English

Windows management functions

SysBatteryOptimBackground

SysCacheExternalStorage

SysChangeEnvironment

SysChangeScreenResolution

SysColor

SysColorRes

SysDetectLockedSession

SysDeviceInfo

SysDir

SysDirExternalStorage

SysIconDisplayTooltip

SysListScreenResolution

SysListVideoCard

SysMemoryExternalStorage

SysRemovableExternalStorage

SysStatusExternalStorage

SysStatusStorageCard

SysTheme

SysThumbnailAddButton

SysThumbnailDeleteAll

SysThumbnailDeleteButton

SysThumbnailModifyButton

WINDEV

WEBDEV

WINDEV Mobile

Others

See also

SysChangeEnvironment (Function)

In french: SysChangeEnvironnement

Modifies the environment variables of the operating system found on the current computer.

Remark: SysEnvironment is used to find out the environment variables of the operating system found on the current computer.

The modified environment variables correspond to the environment variables of the operating system found on the server.

Example

VAR is string = "VAR_USER"
IF SysEnvironment(VAR) = "" THEN
// The variable does not exist, create it
SysChangeEnvironment(VAR, "VAL_VAR_USER", sysEnvUser)
Info("The variable has been added,"
" the changes will be taken into account at the next startup")
ELSE
// the variable exists, delete it
SysChangeEnvironment(VAR, Null, sysEnvUser)
Info("The variable has been deleted,"
" the changes will be taken into account at the next startup")
END

Syntax

<Result> = SysChangeEnvironment(<Name> , <Value> [, <Permanent>])

<Result>: Boolean

True if the modification was performed,
False if an error occurred.

<Name>: Character string

Name of the environment variable to modify. The environment variable is created if it does not exist.

<Value>: Character string

New value for the specified environment variable.

<Permanent>: Optional Integer constant

Corresponds to one of the following constants:
sysEnvGlobal Global change for the system: the current process as well as all the new processes of the system are affected. The new value will be taken into account during the next connection of the user.

Remark: To use this constant, the user must be administrator.
sysEnvProcess
(Default value) Change of current process only.
sysEnvUser Change performed for the current user only: the current process as well as all the new processes started by the user are affected.

The new value will be taken into account during the next connection of the user.
This parameter is ignored.

Component: wd270std.dll