Listing 2: Arbeit mit Easy Requester

/* EasyRequester.c */

#define __USE_BASETYPE__

#include <intuition/intuition.h>
#include <intuition/intuitionbase.h>
#include <proto/exec.h>
#include <proto/dos.h>
#include <proto/intuition.h>

struct IntuitionBase  *IntuitionBase;
struct IntuitionIFace *IIntuition;

LONG EasyRequester(const STRPTR text, const STRPTR button, ...)
{
  struct TagItem tags[] = { ESA_Position,REQPOS_CENTERSCREEN, TAG_DONE };
  struct EasyStruct easyreq={ 0 };
  easyreq.es_StructSize   = sizeof(struct EasyStruct);
  easyreq.es_Flags        = ESF_SCREEN | ESF_TAGGED | ESF_EVENSIZE;
  easyreq.es_Title        = (UBYTE *)"EasyRequester - Beispiel";
  easyreq.es_TextFormat   = (UBYTE *)text;
  easyreq.es_GadgetFormat = (UBYTE *)button;
  easyreq.es_Screen       = IntuitionBase->ActiveScreen;
  easyreq.es_TagList      = &tags;

  return( IIntuition->EasyRequestArgs(NULL,&easyreq,NULL,(ULONG*)((&button)+1)) );
}

int main()
{
  int res = 0;

  if((IntuitionBase = (struct IntuitionBase *) IExec->OpenLibrary("intuition.library",50)))
  {
    if((IIntuition = (struct IntuitionIFace *) IExec->GetInterface((struct Library *)IntuitionBase,"main",1,NULL)))
    {
      res = EasyRequester("EasyRequester mit variabler Argumentenanzahl:\n%s %ld.%ld",
                          "_Weiter|_Abbruch",
                          IntuitionBase->LibNode.lib_Node.ln_Name,
                          IntuitionBase->LibNode.lib_Version,
                          IntuitionBase->LibNode.lib_Revision
                         );

      IExec->DropInterface((struct Interface *)IIntuition);
    }
    else IDOS->Printf("Interface in der intuition.library fehlt.\n");

    IExec->CloseLibrary((struct Library *)IntuitionBase);
  }
  else IDOS->Printf("intuition.library V50 nicht zu öffnen.\n");

  return( res );
}