X11workbench Toolkit - Hello World sample

#include <stdio.h>
#include <stdlib.h>

#include "window_helper.h"
#include "dialog_window.h"

int main(int argc, char *argv0[], char *envp0[])
{
int iRval = 1;
char **argv = argv0; // re-define as char ** so I can re-allocate it as needed
char **envp = envp0;

  if(!WBParseStandardArguments(&argc, &argv, &envp))
  {
    if(WBInit(NULL))
    {
      DLGMessageBox(MessageBox_OK | MessageBox_Info, None,
                    "Hello World",
                    "Hello World using X11workbench Toolkit");

// if your application creates a modeless dialog window or frame window, you will
// need a message loop.  For the sample, it is disabled with an '#if 0' block
#if 0
      //=========================
      //   MAIN MESSAGE LOOP
      //=========================

      while (!bQuitFlag)
      {
        if(!WBCheckGetEvent(pX11Display, &event))
        {
          // SLEEP if no event while in message loop (function returns without blocking)
          // otherwise I can do background tasks during this loop iteration.

// the configure script should determine if your OS supports 'nanosleep'
#ifdef HAVE_NANOSLEEP
          struct timespec tsp;
          tsp.tv_sec = 0;
          tsp.tv_nsec = 100000;  // wait for .1 msec

          nanosleep(&tsp, NULL);
#else  // HAVE_NANOSLEEP

          usleep(100);  // 100 microsecs - a POSIX alternative to 'nanosleep'

#endif // HAVE_NANOSLEEP

          continue; // skip the 'WBDispatch' since there was no event
        }

        WBDispatch(&event);
      }
#endif // 0


      WBExit();
    }

    if(envp && envp != envp0)
    {
      free(envp);
    }

    if(argv && argv != argv0)
    {
      free(argv);
    }
  }
  else
  {
    WBToolkitUsage();
  }

  return iRval;
}