what is the c++ source code for....?

Question

closing a program

i already know that
system("program.exe")
opens that program

but how do i make it where it closes a program?

Answer 1

Well system() is NOT suppose to return until its finished.

BUT if I had to write some UGLY code to close and kill this program.exe.:

#include
#include
#include
...
pid_t child;

child = fork();

//we now have 2 process running.

if (child == 0) {
//this is the child process
//start program.exe
system("programe.exe");
//program.exe finishes, just exit the program
exit();
}
if (child > 0) {
//this is the parent process
//if the child process running program.exe is taking too long
//then
result = killpg(child, SIGKILL);
}

I haven't tried this but I think something like this would work if you want to continue to use system();

Answer 2

commonly, you should use a C++ compiler to collect C courses. C++ is an extension of C. imagine of it as a prevalent C compiler with added help that shall we it parse and collect merchandise-orientated resource statements. C++ resource code seems very comparable to Java. no matter in case your courses will collect or no longer relies upon on how old your version of quick C is. I actual have used quick C a million.5 for DOS in view that I first offered it in the early Nineties. In that version, an integer (int) is in trouble-free words 2 bytes. i have not in any respect used seen C++, yet i'm efficient it makes use of four-bytes because the default length for an int. The interfaces to C library workouts have replaced somewhat too over the years. i have had blended consequences compiling a number of my old quick C a million.5 courses using gcc on Linux. solid success!

Answer 3

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