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