How do I convert argv to lpCommandLine parameter of CreateProcess?

Question

Let I want to write an application, that launches another application. Like this:

# This will launch another_app.exe
my_app.exe another_app.exe 
# This will laun         


        

Answer 1

You need to recreate the command line, taking care of having all program name and arguments enclosed in ". This is done by concatenating a \" to these strings, one at the beginning, one at the end.

Assuming the program name to be created is argv[1], the first argument argv[2] etc...

char command[1024]; // size to be adjusted
int i;
for (*command=0, i=1 ; i 1) strcat(command, " ");
   strcat(command, "\"");
   strcat(command, argv[i]);
   strcat(command, "\"");
}

Use the 2^nd argument of CreateProcess

CreateProcess(NULL, command, ...);