///////////////////////////////////////////////////////////////////////////
//  testApp.cpp - will become a child process spawned by spawnProc.exe   //
//                                                                       //
//  Jim Fawcett, CSE687 - Object Oriented Design, Spring 2012            //
///////////////////////////////////////////////////////////////////////////

#include <iostream>
#include <Windows.h>
#include <conio.h>

using namespace std;

int main(int argc, char *argv[]) {

  // get WriteHandle to pipe, passed as STD_OUTPUT_HANDLE
  HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE);

  // get Handle to screen buffer so we can write a few visible lines
  HANDLE console = CreateFile("CONOUT$",GENERIC_READ | GENERIC_WRITE, FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, 0);

  DWORD dwWritten;  // bytes written
  std::string conMsg = "\n  All output except for these few lines\n  will be written to an anonymous pipe.\n";
  WriteFile(console, conMsg.c_str(), conMsg.size(), &dwWritten, NULL); 
  
  // write opening text to pipe
  char* msg = "  Test Application:\n    my arguments are:";
  WriteFile(hStdout,msg,strlen(msg),&dwWritten,NULL);

  // write command line arguments to pipe
  int i;
  for(i=0; i<argc; i++)
  {
    std::string temp = argv[i];
    if(i != argc-1)
      temp.append(", ");
    WriteFile(hStdout,temp.c_str(),temp.size(),&dwWritten,NULL);
  }
  std::string message = "\n\n  This child process will load a test dll specified on the command line, ";
  message.append("\n  use GetProcAddress to get its factory and then execute its test() function\n  ");
  WriteFile(hStdout, message.c_str(), message.size(), &dwWritten, NULL);

  // write closing lines to pipe
  WriteFile(hStdout,"\n",strlen("\n"),&dwWritten,NULL);
  WriteFile(hStdout,"quit",strlen("quit"),&dwWritten,NULL);

  // write prompt to child screen
  char* closeMsg = "\n  press a key to finish: ";
  WriteFile(console, closeMsg, strlen(closeMsg), &dwWritten, NULL);
  
  ///////////////////////////////////////////////////////////////////////
  // Uncomment to keep window from closing so user can look at contents.
  // Parent needs to specify CREAT_NEW_CONSOLE when you uncomment.
  // Parent needs to specify CREATE_NO_WINDOW when you comment.
  // Test should not call getche().
  int ch = _getche();

  CloseHandle(hStdout);
  return 0;
}