list_sound_devices
This function lists all the devices that can be found on the system.
string[] list_sound_devices()
Parameters:
None.
Return value:
An array containing the friendly names of all available devices, or an empty array on failure.
Remarks:
The devices will be listed in the order they appear in the Windows device list.
Example:

    // Enumerate all the devices on the system.

    void main()
    {
    string[] devices;
    devices=list_sound_devices();
    if(devices.length()==0)
    {
    alert("Error", "No devices can be found on your system.");
    exit();
    }
    for(uint i=0;i<devices.length();i++)
    {
    alert("Device " + (i+1), devices[i]);
    }
    }