Executando em segundo plano [RESOLVIDO]

#include <stdio.h>

#include <stdlib.h>

#include <time.h>

void pause (float);

void pause (float delay1) {

 

   if (delay1<0.001) return; // pode ser ajustado e/ou evita-se valores negativos.

 

   float inst1=0, inst2=0;

 

   inst1 = (float)clock()/(float)CLOCKS_PER_SEC;

 

   while (inst2-inst1<delay1) inst2 = (float)clock()/(float)CLOCKS_PER_SEC;

 

   return;

}         main () {

                 pause (1800.0);

                 system("mspaint C:/Users/vinicius/Desktop/Desert.jpg");

                 pause (1800.0);

                 system("mspaint C:/Users/vinicius/Desktop/Desert.jpg");

                 pause (1800.0);

                 system("mspaint C:/Users/vinicius/Desktop/Desert.jpg");

  

                 }