Activate Interactive Mode 
   Table of contents 
   
   yt_run_InteractiveMode 
 int yt_run_InteractiveMode(const char* flag_file_name);
 - Usage: Activate interactive Python prompt when file flag_file_nameis detected in the same directory where simulation executable is.
- Return:  - YT_SUCCESS
- 
YT_FAIL: Whenlibytis not compiled with-DINTERACTIVE_MODE, it returnsYT_FAIL.
 
  Must compile
 Must compile libyt with -DINTERACTIVE_MODE.
 
   Example 
 #include "libyt.h"
...
if (yt_run_InteractiveMode("LIBYT_STOP") != YT_SUCCESS) {
    fprintf(stderr, "ERROR: yt_run_InteractiveMode failed!\n");
    exit(EXIT_FAILURE);
}