From: yas AT oberon DOT csse DOT swin DOT edu DOT au (Y. Ahmet Sekercioglu)
Subject: Sample code for beginners of tcl/tk & cygwin32 environment
21 Nov 1997 01:38:36 -0800
Message-ID: <Pine.LNX.3.95.971120224503.26742D-100000.cygnus.gnu-win32@oberon.csse.swin.edu.au>
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
To: gnu-win32 AT cygnus DOT com

	Dear All,

	With the aid of some helpful people, I have managed to 
compile and run my first tcl/tk - cygwin32 program. 

	I am copying the ``Hello World'' program here hoping to save
the beginners a few hours of work:

		=================================

#include <stdio.h>
#include <tcl.h>
#include <tk.h>

/* tkhelloworld.c: downloaded somewhere from the Internet and modified */
/* to the tk4.2                                                        */
/* Very first program to start exploring tcl/tk - cygwin32 environment */
/* 
   compilation & linking on Linux:
   gcc -o tkhelloworld tkhelloworld.c -L/usr/X11R6/lib -ltcl -ltk -lX11 -ldl -lm 
   compilation & linking on WinNT (cygwin32 version b18):
   gcc -o tkhelloworld tkhelloworld.c -ltcl7.6 -ltk4.2
*/

int main(argc, argv)
     int argc;
     char **argv;
{
  Tk_Window mainWindow;
  Tcl_Interp *tcl_interp;
  
  tcl_interp = Tcl_CreateInterp();

  if(Tcl_Init(tcl_interp) != TCL_OK || Tk_Init(tcl_interp) != TCL_OK) {
    if(*tcl_interp->result)
      (void)fprintf(stderr,"%s: %s\n", argv[0], tcl_interp->result);
    exit(1);
  }

  mainWindow = Tk_MainWindow(tcl_interp);
  if (mainWindow == NULL) {
    fprintf(stderr, "%s\n", tcl_interp->result);
    exit(1);
  }
  
  Tcl_Eval(tcl_interp, "button .b -text \"Hello World\" -command exit");
  Tcl_Eval(tcl_interp, "pack .b");

  Tk_MainLoop();

  exit(1);
}


===Y. Ahmet Sekercioglu (ASekerci AT swin DOT edu DOT au)=====IP phone:============
   School of Information Technology                yas.csse.swin.edu.au
   Swinburne University of Technology              tel: +61-3-92148942
===PO Box 218, Hawthorn, 3122 Vic. Australia=======fax: +61-3-98190823==

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