High Quality Content by WIKIPEDIA articles! VX-REXX is a highly-extensible REXX GUI development system for OS/2.Much of the new code in eComStation has been written using VX-REXX.Though REXX is itself a 3GL, the VX-REXX interface allows you to build REXX programs using a combination of 3GL and 4GL techniques; its drag-and-drop interface to inserting code allows quite complex programs to be built without actually entering any code.VX-REXX's interface is itself written in VX-REXX, which means that it can be extended and/or modified using REXX code; it also has a number of macro hooks which can be used to add to its functionality directly.

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