Clarion Community Help

Exporting Procedures in a Clarion# DLL for use in a Win32 program

1) In the Clarion# Program's GLOBAL MAP, add both the NAME and PUBLIC attributes to the PROCEDURE prototype

For example in your Clarion# global Map:

MAP

! Procedures exposed for Win32 access must have both the NAME and PUBLIC attributes

SayHello                     PROCEDURE(),NAME('SayHello'),PUBLIC

SayTheName            PROCEDURE(string theName),NAME('SayTheName'),PUBLIC

END

2) On the Clarion# Project properties dialog, turn on the checkbox Export Global named procedures and create Clarion Win32 LIB file

This step causes a .LIB file to be created, its location is set according to your RED file, or you can specify the output path in the Project.

3) Copy both the .LIB and the Clarion# DLL to your Win32 project folder.  You also must copy any assemblies (DLLs) that your Clarion# DLL references, for the minimum you need:

SoftVelocity.Clarion.Runtime.Procedures.dll

SoftVelocity.Clarion.FileIO.dll

SoftVelocity.Clarion.Runtime.Classes.dll

ClarionDrv.dll

4) In the Clarion Win32 program prototype the Procedure(s), and add the PASCAL and DLL attributes. If you need

to pass a string value by address also add the RAW attribute.

MAP

MODULE('ManagedDLL.dll')

! Calling Clarion# Procedures, you must use the PASCAL Attribute and set DLL(true)
 SayHello            PROCEDURE(),NAME('SayHello'),PASCAL,DLL(TRUE)

SayTheName   PROCEDURE(*cstring theName),NAME('SayTheName'),PASCAL,RAW,DLL(TRUE)

END

END