How to add background image and sound in graphics.h ?

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C++98

hi everybody. i have some problems with graphics.h functions in c++. 1) how can i add constant background image to my code? i tried initwindow and readimagefile fuctions but when i put that in for loop each time it opens new window and when i put it out of for loop it disappears when loop starts. i have same problem with sound. when i play sound using playsound function program waits for sound to finish and then reads rest of the code. i would be thankful to help me.

What I have tried:

#include <stdio.h>
#include <graphics.h>
#include <windows.h>
#include <conio.h>
#include <mmsystem.h>

int main() {

    int p=0 ;

    int w=0,d=0,s=0,a=0 ;

int gd=DETECT,gm ;

initgraph(&gd,&gm,"") ;

      PlaySound(TEXT("gow.wav"), NULL, SND_SYNC) ;

char c='y';

while (c!=27) {

rectangle(20+a,20+w,80+d,80+s) ;

c=getch() ;

if (c=='t') {

    p++ ;
}

if (c=='f') {

        for (int i=20+w;i>=0;i--) {

    rectangle(20+a,20+w,80+d,80+s) ;

    if (p%2==0) {

    circle((100+a+d)/2,i,4) ;
    }
    else {

        line((100+a+d)/2,i,(100+a+d)/2,i-5) ;
    }

    Sleep(1) ;

    cleardevice() ;

        }
}

if (c=='a') {

    cleardevice() ;

    a-=10 ;

    d-=10 ;
}
else if (c=='w') {

    cleardevice() ;

    w-=10 ;

    s-=10 ;
}
else if (c=='d') {

    cleardevice();

    d+=10 ;

    a+=10 ;
}
else if (c=='s') {

    cleardevice() ;

    s+=10 ;

    w+=10 ;
}

}

closegraph() ;

return 0;
}