How to pause in C

Question

I am a beginner of C  I run the C program  but the window closes too fast before I can see anything  How can I pause the window

User · Accepted Answer

you can put  getchar      before the return from the main function  That will wait for a character input before exiting the program    Alternatively you could run your program from a command line and the output would be visible

User · Answer

Is it a console program  running in Windows  If so  run it from a console you ve already opened  i e  run  cmd   then change to your directory that has the  exe in it  using the cd command   then type in the exe name  Your console window will stay open

User · Answer

For Linux  getchar   is all you need   If you are on Windows  check out the following  it is exactly what you need      kbit   function    kbhit   function is used to determine if a key has been pressed or not    To use kbhit   in C or C   prorams you have to include the header file  conio h     For example  see how it works in the following program     any key c   include  lt stdio h gt    include  lt conio h gt   int main           code here     printf   Press any key to continue       n        while  1  if  kbhit    break         code here      return 0       When I compile and run the program  this is what I see   Only when user presses just one key from the keyboard  kbhit   returns 1

User · Answer

I assume you are on Windows  Instead of trying to run your program by double clicking on it s icon or clicking a button in your IDE  open up a command prompt  cd to the directory your program is in  and run it by typing its name on the command line

User · Answer

Good job I remembered about DOS Batch files  Don t need Getchar   at all  Just write the batch file to change directory  cd  to the folder where the program resides  type the name of the exe program and on the next line type pause  example   cd    wallpaper calculator exe pause

User · Answer

getch   can also be used which is defined in conio h   The sample program would look like this     include  lt stdio h gt   include  lt conio h gt   int main           your code      getch        return 0        getch   waits for any character input from the keyboard  not necessarily enter key

User · Answer

You could also just use system  pause

User · Answer

If you want to just delay the closing of the window without having to actually press a button  getchar   method   you can simply use the sleep   method  it takes the amount of seconds you want to sleep as an argument    include  lt unistd h gt     your code here sleep 3      sleep for 3 seconds   References  sleep   manual

User · Answer

Under POSIX systems  the best solution seems to use    include  lt unistd h gt   pause       If the process receives a signal whose effect is to terminate it  typically by typing Ctrl C in the terminal   then pause will not return and the process will effectively be terminated by this signal  A more advanced usage is to use a signal-catching function  called when the corresponding signal is received  after which pause returns  resuming the process   Note  using getchar   will not work is the standard input is redirected  hence this more general solution

User · Answer

If you are making a console window program  you can use system  pause

[c] How to pause in C?

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