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Clarion in general: Loading clarion DLL and execute a procedure
2002-12-16 -- Andy Ireland
 
Newsgroups: softvelocity.products.c55ee

You do not need to use C, here's a clarion example binding it to a class.
This way you can encapsulate bound calls like this for specific
functionality into a class that wraps the whole shooting match so you do not
have code here there and everywhere but instead all in one place where it
should be, a class and it's module.

  map
    ProcToCallStub(long pwszVersion, |
                   long pwszBuildFlavor, |
                   long flags, |
                   REFCLSID rclsid, |
                   REFIID riid, |
                   *long pvObject),HRESULT,pascal,type
    module('')
      ProcToCall(ObjFactory Of, |
                 long pProcToCall, |
                 long pwszVersion, |
                 long pwszBuildFlavor, |
                 long flags, |
                 REFCLSID rclsid, |
                 REFIID riid, |
                 *long pvObject),HRESULT,name('_ProcToCall')
    end
  end


ObjFactory  class........
ProcToCall         procedure(ProcToCallStub pProcToCall, |
                             long pwszVersion, |
                             long pwszBuildFlavor, |
                             long flags, |
                             REFCLSID rclsid, |
                             REFIID riid, |
                             *long pvObject),|
                               HRESULT,name('_ProcToCall'),private
                    end

Then calling the method will allow binding to the call as follows....

ObjFactory.ProcToCall procedure(ProcToCallStub pProcToCall, |
                                long pwszVersion, |
                                long pwszBuildFlavor, |
                                long flags, |
                                REFCLSID rclsid, |
                                REFIID riid, |
                                *long pvObject)

  code
    pvObject = 0
    return pProcToCall(pwszVersion, pwszBuildFlavor, flags, rclsid, riid, pvObject)

then just call as a normal method.

HTH

Regards

Andy
Plugware Solutions.com Ltd,  taking the puzzle out of I.T
Tel : +44 1249 813335
Fax : +44 1249 813462



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