This is the legacy 4D documentation web site. Documentations are progressively being moved to developer.4d.com
- 4D Language Reference
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- Tools
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BASE64 DECODE
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BASE64 ENCODE
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Choose
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Generate digest
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Generate password hash
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Generate UUID
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GET ACTIVITY SNAPSHOT
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GET MACRO PARAMETER
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Get Monitored Activity
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LAUNCH EXTERNAL PROCESS
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Load 4D View document
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MOBILE APP REFRESH SESSIONS
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OPEN URL
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PROCESS 4D TAGS
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SET ENVIRONMENT VARIABLE
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SET MACRO PARAMETER
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START MONITORING ACTIVITY
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STOP MONITORING ACTIVITY
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Verify password hash
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SET ENVIRONMENT VARIABLE
| SET ENVIRONMENT VARIABLE ( varName ; varValue ) | ||||||||
| Parameter | Type | Description | ||||||
| varName | String |
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Variable name to set | |||||
| varValue | String |
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Value of the variable or "" to reset default value | |||||
The SET ENVIRONMENT VARIABLE command allows you to set the value of an environment variable under macOS and Windows. It is meant to be used with the LAUNCH EXTERNAL PROCESS command. It also works with the PHP Execute command.
Pass the name of the variable to define in varName and its value in varValue.
- To get the general list of environment variables and possible values, please refer to the technical documentation of your operating system.
- Three specific environment variables are available for use in the context of the LAUNCH EXTERNAL PROCESS command:
_4D_OPTION_CURRENT_DIRECTORY
_4D_OPTION_HIDE_CONSOLE (Windows only)
_4D_OPTION_BLOCKING_EXTERNAL_PROCESS.
For information on these variables, please refer to the documentation for the LAUNCH EXTERNAL PROCESS command.
Refer to examples of the LAUNCH EXTERNAL PROCESS command.
Product: 4D
Theme: Tools
Number:
812
Modified: 4D v11 SQL
4D Language Reference ( 4D v20 R7)
