GCC Windows Hide Minimize Maximize Windows

#include <windows.h>
#include <string>
using std::string;
#include <unistd.h>

int main(){
    //sleep 5 seconds
    int s=5;
    sleep(5);

    //get focused window
    HWND hWnd = GetForegroundWindow();

    //hide focused window
    ShowWindow( hWnd, SW_HIDE );
    //ShowWindow( hWnd, SW_HIDE );

    //sleep 5 seconds
    sleep(5);

    //show hiden window
    ShowWindow( hWnd, SW_SHOW );

    //sleep 2 seconds
    sleep(2);

    //minmize window
    ShowWindow( hWnd, SW_MINIMIZE );

    //sleep 2 seconds
    sleep(2);

    //maximize window
    ShowWindow( hWnd, SW_MAXIMIZE );

    //sleep 2 seconds
    sleep(2);

    //restore window
    ShowWindow( hWnd, SW_RESTORE );

    return 0;
}