Link Logic

  

DEVELOPER

The following logic commands allow you to interface to programs developed in other languages.  

Logic Command

Description
 

LINK

Calls a subroutine directly from the kernel.  If issued from Unix, the subroutine indicated by the LINK verb must be physically linked to the kernel at build time.  If issued from a Windows kernel, the subroutine must be in a DLL that is called by the kernel process. Click here to learn more about the LINK Logic Verb family.
 

LINK-CLIENT

Calls a subroutine using the Windows Client.  Therefore, its format is dependent only on which Client is used.  Any kernel (including Unix) may call a LINK-CLIENT DLL. The Client must be able to locate the DLL. Click here to learn more about the LINK Logic Verb family.

LINK_CLIENT_VAR

Supports keywords on the call to indicate whether a parameter is an input to the DLL, an output (return) parameter, or both. Click here to learn more about the LINK Logic Verb family.
 

LINK-CRT

Calls an external procedural language routine from PROIV and provides screen refreshing.
 

SYSTEM-CRT

A pass command to the operating system and provides for screen refreshing.
 

SYSTEM

An external program is called from PROIV with the expectation that the called program will return control to PROIV.
 

XFER

PROIV transfers control to an external program with no provision for the return of control to PROIV.
 

XFERIN

An external program calls PROIV and provides for the return of control.
 

 


 

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Topic ID: 520015