samples/console/console.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        samples/console/console.cpp
   3 // Purpose:     A sample console (as opposed to GUI) program using wxWidgets
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     04.10.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 // for all others, include the necessary headers (this file is usually all you
  28 // need because it includes almost all "standard" wxWidgets headers)
  29 #ifndef WX_PRECOMP
  30     #include "wx/wx.h"
  31 #endif
  32
  33 #include <wx/app.h>
  34 #include <wx/cmdline.h>
  35
  36 // ============================================================================
  37 // implementation
  38 // ============================================================================
  39
  40 static const wxCmdLineEntryDesc cmdLineDesc[] =
  41 {
  42     { wxCMD_LINE_SWITCH, "h", "help", "show this help message",
  43         wxCMD_LINE_VAL_NONE, wxCMD_LINE_OPTION_HELP },
  44     { wxCMD_LINE_SWITCH, "d", "dummy", "a dummy switch" },
  45     // ... your other command line options here...
  46
  47     { wxCMD_LINE_NONE }
  48 };
  49
  50 int main(int argc, char **argv)
  51 {
  52     wxApp::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, "program");
  53
  54     wxInitializer initializer;
  55     if ( !initializer )
  56     {
  57         fprintf(stderr, "Failed to initialize the wxWidgets library, aborting.");
  58         return -1;
  59     }
  60
  61     wxCmdLineParser parser(cmdLineDesc, argc, argv);
  62     switch ( parser.Parse() )
  63     {
  64         case -1:
  65             // help was given, terminating
  66             break;
  67
  68         case 0:
  69             // everything is ok; proceed
  70             if (parser.Found("d"))
  71             {
  72                 wxPrintf("Dummy switch was given...\n");
  73
  74                 while (1)
  75                 {
  76                     wxChar input[128];
  77                     wxPrintf("Try to guess the magic number (type 'quit' to escape): ");
  78                     if ( !wxFgets(input, WXSIZEOF(input), stdin) )
  79                         break;
  80
  81                     // kill the last '\n'
  82                     input[wxStrlen(input) - 1] = 0;
  83
  84                     if (wxStrcmp(input, "quit") == 0)
  85                         break;
  86
  87                     long val;
  88                     if (!wxString(input).ToLong(&val))
  89                     {
  90                         wxPrintf("Invalid number...\n");
  91                         continue;
  92                     }
  93
  94                     if (val == 42)
  95                         wxPrintf("You guessed!\n");
  96                     else
  97                         wxPrintf("Bad luck!\n");
  98                 }
  99             }
 100             break;
 101
 102         default:
 103             break;
 104     }
 105
 106     if ( argc == 1 )
 107     {
 108         // If there were no command-line options supplied, emit a message
 109         // otherwise it's not obvious that the sample ran successfully
 110         wxPrintf("Welcome to the wxWidgets 'console' sample!\n");
 111         wxPrintf("For more information, run it again with the --help option\n");
 112     }
 113
 114     // do something useful here
 115
 116     return 0;
 117 }