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Re: [Help-glpk] [Fwd: C# API Exception]

From: Heinrich Schuchardt
Subject: Re: [Help-glpk] [Fwd: C# API Exception]
Date: Wed, 14 Jun 2017 23:21:55 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0

>> I would like to know if I could get your advice on how to use the API in VBA.

Dear Curtis,

GLPK for Windows 4.61 comes with VBA examples in directory

Please, find the README.txt I have prepared for the next release below.

Best regards

Heinrich Schuchardt

Visual Basic for Applications examples for GLPK

This directory contains multiple examples demonstrating calling the GLPK
library from VBA.

- glpk.bas contains the definitions of the library functions.
- errdemo.bas demonstrates error handling.
- gmpl.bas loads a GMPL model and solves the problem.
- lp.bas solves a linear problem.
- mip.bas solves a mixed integer problem.

To run the examples follow the steps below:

- Open Excel
- Either press ALT+F11 or select menu entry Developer -> View code.
- With menu entry File -> Import File import the modules.
- In glpk.bas replace "glpk.dll" with the full path to the relevant dll:
  w32/glpk_4_62_stdcall.dll for 32bit Windows,
  w64/glpk_4_62.dll for 64bit Windows.
- Press CTRL+G or select menu entry View -> Immediate Window.
- Press F5 to run an example. The output is shown in the immediate
- To run gmpl.bas call function gmpl_main passing the name of a GMPL
  model file as parameter.

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