--- q_a/samples/startp/startp.c	2018/08/09 18:29:38	1.1.1.2
+++ q_a/samples/startp/startp.c	2018/08/09 18:30:04	1.1.1.3
@@ -1,3 +1,14 @@
+
+/******************************************************************************\
+*       This is a part of the Microsoft Source Code Samples. 
+*       Copyright (C) 1993 Microsoft Corporation.
+*       All rights reserved. 
+*       This source code is only intended as a supplement to 
+*       Microsoft Development Tools and/or WinHelp documentation.
+*       See these sources for detailed information regarding the 
+*       Microsoft samples programs.
+\******************************************************************************/
+
 /********************************************************************
 * This program demonstrates various CreateProcess parameters,       *
 * including starting processes in a given priority class. This is   *
@@ -13,38 +24,38 @@
 *   see the help() function or run the program without any          *
 *   parameters to see detailed execution info.                      *
 *                                                                   *
-* Future enhancements:                                              *
+* Possible enhancements:                                            *
 *   Handle cmd.exe internal commands                                *
 ********************************************************************/
 
-/* Microsoft Developer Support
-   Copyright (c) 1992 Microsoft Corporation */   #include <windows.h>
-
+#include <windows.h>
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
 
 /* Standard error macro for reporting API errors */
-#define PERR(api) printf("%s: Error %d from %s on line %d\n",  \
-    __FILE__, GetLastError(), api, __LINE__);
+#define PERR(bSuccess, api) {if (!(bSuccess)) printf("%s: Error %d from %s \
+    on line %d\n", __FILE__, GetLastError(), api, __LINE__);}
 
 void help()
 {
   puts("Starts a specified program, batch, or command file.");
-  puts("STARTP [/Ttitle] [/Dpath] [/h] [/l] [/min] [/max] [/w]");
-  puts("       [/c] [program] [parameters]");
+  puts("STARTP [/Ttitle] [/Dpath] [/l] [/h] [/r] [/min] [/max] [/w]");
+  puts("       [/c] [/b] [program] [parameters]");
   puts("\n    title       Title to display in window title bar. Quote the");
   puts("                entire paramter to include spaces in the title,");
   puts("                i.e. startp \"/Ttest job\"");
   puts("    path        Starting directory");
-  puts("    h           Set default to high priority");
   puts("    l           Set default to low priority");
+  puts("    h           Set default to high priority");
+  puts("    r           Set default to realtime priority");
   puts("    min         Start window minimized");
   puts("    max         Start window maximized");
   puts("    w           Wait for started process to end before returning");
   puts("                control to the command processor. This option starts");
   puts("                the process synchronously");
   puts("    c           Use current console instead of creating a new console");
+  puts("    b           Start detached with no console at all");
   puts("    program     A batch file or program to run as either a GUI");
   puts("                application or a console application");
   puts("    parameters  These are the parameters passed to the program");
@@ -69,6 +80,14 @@ int main(int argc, char *argv[])
   int i;
   char *aExt[] = { ".exe", ".com", ".bat", ".cmd" };
 
+  /* Check to make sure we are running on Windows NT */
+  if( GetVersion() & 0x80000000 )
+    {
+    MessageBox(NULL, "Sorry, this application requires Windows NT.\n"
+        "This application will now terminate.",
+        "Error: Windows NT Required to Run",  MB_OK );
+    return(1);
+    }
   /* process all command-line parameters */
   if (argc < 2)
     help();
@@ -99,6 +118,9 @@ int main(int argc, char *argv[])
         case 'l':
           dwCreate |= IDLE_PRIORITY_CLASS;  /*  /l */
           break;
+        case 'r':
+          dwCreate |= REALTIME_PRIORITY_CLASS;  /*  /r */
+          break;
         case 'm':
           switch ((*argv)[2])
             {
@@ -120,6 +142,9 @@ int main(int argc, char *argv[])
         case 'w':
           bWait = TRUE;  /* don't end until new process ends as well */
           break;
+        case 'b':
+          dwCreate |= DETACHED_PROCESS;  /* start detached */
+          /* detached implies no CREATE_NEW_CONSOLE so fall through */
         case 'c':
           dwCreate &= ~CREATE_NEW_CONSOLE;  /* turn off this bit */
           break;
@@ -172,8 +197,11 @@ int main(int argc, char *argv[])
         case ERROR_DIRECTORY:
           puts("Error: bad starting directory");
           exit(1);
+        case ERROR_PATH_NOT_FOUND:
+          puts("Error: bad path");
+          exit(1);
         default:
-          PERR("CreateProcess");
+          PERR(0, "CreateProcess");
           exit(1);
         }  /* switch */
     } while (!fSuccess);
@@ -183,8 +211,7 @@ int main(int argc, char *argv[])
     {
     dwResult = WaitForSingleObject(pi.hProcess,  /* object to wait for */
         (DWORD) -1);  /* timeout time */
-    if (dwResult == -1)
-      PERR("WaitForSingleObject");
+    PERR(dwResult != -1, "WaitForSingleObject");
     }
   CloseHandle(pi.hProcess);  /* close process handle or it won't die */
   return(0);