Call an external subroutine or function
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WSupported on Windows
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USupported on Unix
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VSupported on OpenVMS
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NSupported in Synergy .NET
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XCALL subroutine([argument, ...])
Arguments
subroutine
The name of an external subroutine or function to which control will be transferred.
argument
(optional) A list of one or more arguments that are passed to the subroutine or function.
(a or n)
Discussion
The XCALL statement transfers control to an external subroutine or user-defined function. (It cannot be used to call system-supplied functions.) Upon return from the subroutine or function, control is transferred to the statement following the XCALL statement.
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Any ONERROR traps set in the calling program are disabled while the external subroutine is being processed. Once control returns to the calling program, the error traps are re-enabled. |
See also
Writing and calling subroutines and functions
Examples
See USING-ENDUSING for an example that uses the XCALL statement.
