windows - C++ : Using background colors with clrscr() -

i making simple game. initial screen welcome screen following color:

system("color f3")//background:white , text:aqua 

then when invoke following main() function

void display() {      sleep(2000);     clrscr();     system("color f3");     cout<<"levels:\n\n";     int d;     cout<<"1.easy\n";     cout<<"2.medium\n";     cout<<"3.hard\n";     cout<<"4.insane!\n";     cout<<"choose difficulty:";     cin>>d; } 

without statement system("color f3"); in display() background black, text gets highlighted in white , text color aqua.

i want know why above happens.

problem:

with statement system("color f3"); when clrscr() invoked, screen turns black few milliseconds , turns white , aqua.

so how prevent screen turn black few milliseconds?

thanks help:)

when call system(), lauch command processor in process, changes screen settings.

when later call clrscr() library clears uses own colors stored @ startup clear screen. why experience problem.

you instead use directly windows console api, example function setconsoletextattribute():

#include <windows.h> ...    setconsoletextattribute(getstdhandle(std_output_handle),                         background_intensity|foreground_blue);  

note: colors , intensity can combined needed |. in case write 0xf3

by way, this question shows other native windows console api functions of interest.