Listing 1: Source file for simple draw V application

//================================================================
//  drawapp.cxx:
//  Copyright (C) 1995  Bruce E. Wampler
//================================================================
//  Files required for draw application:
//      drawapp.h:      Header for the draw app
//      drawapp.cxx:    Source code for draw app class
//      drawcmdw.h:     Header for draw command window class
//      drawcmdw.cxx:   Source code for draw command window
//      drawcnv.h:      Header for draw canvas class
//      drawcnv.cxx:    Source for draw canvas class
//
#include "drawapp.h"    // our header

//==================>>> drawApp::NewAppWin <<<====================
vWindow* drawApp::NewAppWin(vWindow* win, char* name, int h, int w,
  vAppWinInfo* winInfo)
{
  // Create a new Draw window

  vWindow* thisWin = win;             // local copy to use
  vAppWinInfo* awinfo = winInfo;

  if (!thisWin)                       // need to new a window
    {
      thisWin = new myCmdWindow(name, h, w);
    }
  if (!awinfo)
      awinfo = new vAppWinInfo(name);
  return vApp::NewAppWin(thisWin, name, h, w, awinfo);
}

//======================>>> drawApp::Exit <<<=====================
void drawApp::Exit(void)
{
  // This is called to close all windows. 
  vApp::Exit();          // easy default behavior
}

//====================>>> drawApp::CloseAppWin <<<================
void drawApp::CloseAppWin(vWindow* win)
{
  // Code to handle close of window (such as saving/closing
  // a file) would go here...
  vApp::CloseAppWin(win);
}

//***** EVERY V application needs to declare an app instance *****

static drawApp draw_App("V Draw");    // The instance of the app

//========================>>> AppMain <<<=========================
int AppMain(int argc, char** argv)
{
  // Use AppMain to create the main window

  theApp->NewAppWin(0, "V Draw - No Name", 250, 500,0);
  return 0;                 // 0 means OK
}
//End of File