SetEnv: Difference between revisions
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The [[Env$]] function, which is used to interrogate the BR environment, has been expanded to permit the simulation of setting an environment variable with configuration statements. The ENV$ function is case insensitive. | The [[Env$]] function, which is used to interrogate the BR environment, has been expanded to permit the simulation of setting an environment variable with configuration statements. The ENV$ function is case insensitive. | ||
CONFIG SETENV SIZE '10 x 24' | CONFIG SETENV SIZE '10 x 24' | ||
This allows a program to use ENV$("SIZE") to retrieve the value '10 x 24', excluding the quotes. In the event SIZE was previously defined in the environment it will appear as set to the new value for the duration of the BR session. | This allows a program to use ENV$("SIZE") to retrieve the value '10 x 24', excluding the quotes. In the event SIZE was previously defined in the environment it will appear as set to the new value for the duration of the BR session. | ||
Revision as of 23:01, 10 January 2013
The SetEnv internal function and config are used to set session based environmental variables in Business Rules!.
In a brconfig.sys file you can set a BR environmental variable as follows:
SetEnv FIELD VALUE
In a program you can set a BR environmental variable as follows:
SetEnv("FIELD","VALUE")
The value of either windows environmental variables or BR environmental variable may be accessed in a program as follows:
Env$("FIELD")
GUIMode
There is a BR! provided GUIMode environmental variable (case insensitive). It's value is either ON or OFF depending on whether BR is in GUI mode.
x$=env$("GUIMode")
See also:
Icon
The Icon environmental variable can be set during the execution of a program by use of SetEnv.
When the special Icon environmental variable is set it will change the icon which the business rules! application displays.
SetEnv("Icon","myicon.ico") sets the icon for the window and the taskbar to the icon specified by the second parameter (e.g. myicon).
00100 SetEnv('Icon','Myicon.ico')
Environment Variable Simulation
The Env$ function, which is used to interrogate the BR environment, has been expanded to permit the simulation of setting an environment variable with configuration statements. The ENV$ function is case insensitive.
CONFIG SETENV SIZE '10 x 24'
This allows a program to use ENV$("SIZE") to retrieve the value '10 x 24', excluding the quotes. In the event SIZE was previously defined in the environment it will appear as set to the new value for the duration of the BR session.
SetEnv("SCRN_SIZE_POSN") will save the current screen size and position for both the new console and the command console, provided they are not minimized to the task bar. The positions of any window that is minimized (graphical window or command console) will not be saved.
Operating System ENV$ variables cannot be set or altered by CONFIG SETENV.
See also: clipboard