Code:
if(keydown(VK_NUMPAD4))
{	
    while(keydown(VK_NUMPAD4))
        Sleep(1);	

    cout << "set scroll number: ";			
    cin >> scroll_num;
       
    return;
}
When the user presses 4 to enter this section the number 4 is outputed, so the user has to press backspace before entering their input. I want it so there is nothing there.

The user sees somthing like this when pressing 4....

set scroll number: 4

when it should be...

set scroll number: