266 lines
12 KiB
C
266 lines
12 KiB
C
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/*----------------------------------------------------------------------------*/
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/* */
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/* Copyright (c) 1995, 2004 IBM Corporation. All rights reserved. */
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/* Copyright (c) 2005-2014 Rexx Language Association. All rights reserved. */
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/* */
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/* This program and the accompanying materials are made available under */
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/* the terms of the Common Public License v1.0 which accompanies this */
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/* distribution. A copy is also available at the following address: */
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/* https://www.oorexx.org/license.html */
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/* */
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/* Redistribution and use in source and binary forms, with or */
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/* without modification, are permitted provided that the following */
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/* conditions are met: */
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/* */
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/* Redistributions of source code must retain the above copyright */
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/* notice, this list of conditions and the following disclaimer. */
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/* Redistributions in binary form must reproduce the above copyright */
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/* notice, this list of conditions and the following disclaimer in */
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/* the documentation and/or other materials provided with the distribution. */
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/* */
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/* Neither the name of Rexx Language Association nor the names */
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/* of its contributors may be used to endorse or promote products */
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/* derived from this software without specific prior written permission. */
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/* */
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/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */
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/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */
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/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS */
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/* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT */
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/* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */
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/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED */
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/* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */
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/* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY */
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/* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */
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/* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */
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/* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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/* */
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/*----------------------------------------------------------------------------*/
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/*********************************************************************/
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/*
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/* File Name: CALLRXWN - Windows application
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/*
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/* Description: Provides a sample call to the REXX
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/* interpreter, passing in an environment name,
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/* a file name, and a single argument string.
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/*
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/* A dialog box is created for the output.
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/* Note that you must define a REXX standard
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/* input and output exit handler for Windows
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/* applications. Console applications are
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/* not required to do this.
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/*
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/*
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/* Entry Points: main - main entry point
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/* RexxIOExit - REXX input and output exit
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/*
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/* Input: None
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/*
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/* Output: returns 0 in all cases.
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/*
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\*********************************************************************/
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#include <rexx.h> /* needed for RexxStart() */
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#include <stdio.h> /* needed for printf() */
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#include <string.h> /* needed for strlen() */
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#include "callrxwn.h" /* prototypes, globals, const */
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/*********************************************************************\
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*
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* function: WinMain()
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*
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* input parameters: c.f. generic sample
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*
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\**********************************************************************/
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int REXXENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
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LPSTR lpCmdLine, int nCmdShow)
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{
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int ret;
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UNREFERENCED_PARAMETER( hPrevInstance );
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UNREFERENCED_PARAMETER( lpCmdLine );
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UNREFERENCED_PARAMETER( nCmdShow);
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// create a dialog box for REXX STDIO
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ret = (int)DialogBox (hInstance, MAKEINTRESOURCE(IDD_CALLREXX_DLG), NULL, (DLGPROC)MainDlgProc);
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return ret;
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}
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/**********************************************************************\
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*
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* function: MainDlgProc()
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*
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* input parameters: standard window procedure parameters.
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*
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* Description: at initialization time, call CallRexx routine to do
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* rexxstart
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*
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\**********************************************************************/
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LRESULT CALLBACK MainDlgProc(HWND hwnd, WORD msg, WPARAM wParam, LPARAM lParam)
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{
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UNREFERENCED_PARAMETER(lParam);
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switch (msg) {
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case WM_INITDIALOG: {
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gHwnd=hwnd; // Save handle for exits
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(VOID)CallRexx(hwnd); // call RexxStart
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} break;
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/******************************************************************\
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* WM_SYSCOMMAND
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*
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* ignore all syscommand messages, except for SC_CLOSE.
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* on this one, call EndDialog().
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\******************************************************************/
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case WM_SYSCOMMAND:
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if (wParam == SC_CLOSE) {
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EndDialog (hwnd, TRUE);
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return TRUE;
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} else
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return FALSE;
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break;
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default: return FALSE;
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} /* end switch(message) */
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return 0;
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}
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/*********************************************************************\
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* function: CallRexx()
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*
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* Description: Provides a sample call to the REXX
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* interpreter, passing in an environment name,
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* a file name, and a single argument string.
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*
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* input parameters:
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* hwnd - parent of the list box with the info.
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*
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* output:
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* returns 0
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*
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*
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\*********************************************************************/
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int CallRexx(HWND hwnd)
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{
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RXSYSEXIT exitlist[9]; /* Exit list array */
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CONSTRXSTRING arg; /* argument string for REXX */
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RXSTRING rexxretval; /* return value from REXX */
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CHAR *str = "These words will be swapped"; /* text to swap */
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RexxReturnCode rc; /* return code from REXX */
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SHORT rexxrc = 0; /* return code from function */
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CHAR *chTextOut[]={
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"This program will call the REXX interpreter to reverse ",
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" the order of the words in a string. The interpreter ",
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" is invoked with an initial environment name of 'FNC'",
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" and a file name of 'BACKWARD.FNC'" ,
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"" ,
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"Below is the result of invoking the interpreter:" ,
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"" ,
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"The example is finished, close the" ,
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"dialog when convenient." ,
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""
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};
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SHORT sIndex; /* index into output text */
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/* put info text on dialog */
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for (sIndex=0; sIndex < 7; sIndex++) {
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SendDlgItemMessage (hwnd, IDC_LISTBOX, LB_ADDSTRING, 0, (LPARAM)chTextOut[sIndex] );
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}
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/* By setting the strlength of the output RXSTRING to zero, we */
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/* force the interpreter to allocate memory and return it to us. */
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/* We could provide a buffer for the interpreter to use instead. */
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rexxretval.strlength = 0L; /* initialize return to empty */
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MAKERXSTRING(arg, str, strlen(str));/* create input argument */
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/* register exit handler */
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rc = RexxRegisterExitExe("RexxIOExit",
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(REXXPFN)&RexxIOExit, /* located at this address */
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NULL);
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/* set up for RXSIO exit */
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exitlist[0].sysexit_name = "RexxIOExit";
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exitlist[0].sysexit_code = RXSIO;
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exitlist[1].sysexit_code = RXENDLST;
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/* Here we call the interpreter. */
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rc=RexxStart(1, /* number of arguments */
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&arg, /* array of arguments */
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"BACKWARD.FNC", /* name of REXX file */
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0, /* No INSTORE used */
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"FNC", /* Command env. name */
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RXSUBROUTINE, /* Code for how invoked */
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exitlist, /* No EXITs on this call */
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&rexxrc, /* Rexx program output */
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&rexxretval); /* Rexx program output */
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/* send rc info to dialog box */
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wsprintf (chTxtBuffer," %s %d", "Interpreter Return Code:", rc);
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SendDlgItemMessage (hwnd, IDC_LISTBOX, LB_ADDSTRING, 0, (LPARAM)chTxtBuffer);
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wsprintf (chTxtBuffer," %s %d", "Function Return Code: ", (int) rexxrc);
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SendDlgItemMessage (hwnd, IDC_LISTBOX, LB_ADDSTRING, 0, (LPARAM)chTxtBuffer);
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wsprintf (chTxtBuffer," %s '%s'", "Original String: ", arg.strptr);
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SendDlgItemMessage (hwnd, IDC_LISTBOX, LB_ADDSTRING, 0, (LPARAM)chTxtBuffer);
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wsprintf (chTxtBuffer," %s '%s'", "Backwards String: ", rexxretval.strptr);
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SendDlgItemMessage (hwnd, IDC_LISTBOX, LB_ADDSTRING, 0, (LPARAM)chTxtBuffer);
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for (sIndex=6; sIndex < 10; sIndex++) {
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SendDlgItemMessage (hwnd, IDC_LISTBOX, LB_ADDSTRING, 0, (LPARAM)chTextOut[sIndex] );
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}
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RexxFreeMemory(rexxretval.strptr); /* Release storage */
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/* given to us by REXX. */
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/* remove the exit */
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RexxDeregisterExit("RexxIOExit",NULL);
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return 0;
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}
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/*********************************************************************\
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* function: CallRexx()
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*
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* Description: This is our REXX Standard input and output handler
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*
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\*********************************************************************/
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int REXXENTRY RexxIOExit(
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int ExitNumber, /* code defining exit function*/
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int Subfunction, /* code defining exit subfunc */
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PEXIT parmblock) /* func dependent control bloc*/
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{
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RXSIOSAY_PARM *sparm ;
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RXSIOTRC_PARM *tparm ;
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switch (Subfunction) {
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case RXSIOSAY: /* write line to standard */
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/* output stream for SAY instr*/
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sparm = ( RXSIOSAY_PARM * )parmblock ;
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SendDlgItemMessage (gHwnd, IDC_LISTBOX, LB_ADDSTRING, 0, (LPARAM)sparm->rxsio_string.strptr);
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break;
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case RXSIOTRC: /* write line to standard */
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/* error stream for trace or */
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/* error messages */
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tparm = ( RXSIOTRC_PARM * )parmblock ;
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SendDlgItemMessage (gHwnd, IDC_LISTBOX, LB_ADDSTRING, 0, (LPARAM)tparm->rxsio_string.strptr);
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break;
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case RXSIOTRD: /* read line from standard */
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/* input stream (PULL) */
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case RXSIODTR: /* read line from standard */
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default: /* input stream for */
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break; /* interactive debug */
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} /* endswitch */
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return RXEXIT_HANDLED; /* successfully handled */
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}
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