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using System;
using System.Linq;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Reflection;
using System.Runtime.InteropServices;
namespace PhoneGap
{
// Need to invoke unmanaged mobile native code from .NET to play sounds. Woot!
internal partial class PInvoke
{
private static IntPtr hSound = IntPtr.Zero; // Pointer/handle of currently-playing sound.
const int SND_SCOPE_PROCESS = 0x1;
private enum Flags
{
SND_SYNC = 0x0000, /* play synchronously (default) */
SND_ASYNC = 0x0001, /* play asynchronously */
SND_NODEFAULT = 0x0002, /* silence (!default) if sound not found */
SND_MEMORY = 0x0004, /* pszSound points to a memory file */
SND_LOOP = 0x0008, /* loop the sound until next sndPlaySound */
SND_NOSTOP = 0x0010, /* don't stop any currently playing sound */
SND_NOWAIT = 0x00002000, /* don't wait if the driver is busy */
SND_ALIAS = 0x00010000, /* name is a registry alias */
SND_ALIAS_ID = 0x00110000, /* alias is a predefined ID */
SND_FILENAME = 0x00020000, /* name is file name */
SND_RESOURCE = 0x00040004 /* name is resource name or atom */
}
[DllImport("aygshell.dll")]
static extern uint SndOpen(string pszSoundFile, ref IntPtr phSound);
[DllImport("aygshell.dll")]
static extern uint SndPlayAsync(IntPtr hSound, uint dwFlags);
[DllImport("aygshell.dll")]
static extern uint SndClose(IntPtr hSound);
[DllImport("aygshell.dll")]
static extern uint SndStop(int SoundScope, IntPtr hSound);
public static bool PlaySound(string path)
{
if (File.Exists(path))
{
SndOpen(path, ref hSound);
SndPlayAsync(hSound, 0);
return true;
}
else return false;
}
public static void StopSound()
{
SndClose(hSound);
SndStop(SND_SCOPE_PROCESS, hSound);
hSound = IntPtr.Zero;
}
}
class MediaCommand : Command
{
private string soundFileName = "";
private string soundExtension = "";
Boolean Command.accept(String instruction)
{
Boolean retVal = false;
if (instruction.StartsWith("/media"))
{
int firstSlash = instruction.IndexOf('/',5);
soundFileName = instruction.Substring(firstSlash);
soundExtension = soundFileName.Substring(soundFileName.LastIndexOf('.'));
// TODO: Test what other sound file types work.
switch (soundExtension)
{
case ".wav":
case ".mp3":
retVal = true;
break;
}
}
return retVal;
}
String Command.execute(String instruction)
{
Assembly assembly = Assembly.GetExecutingAssembly();
string path = "\\Program Files\\" + assembly.GetName().Name + "\\" + soundFileName.Substring(1).Replace("/","\\");
if (PInvoke.PlaySound(path)) return "";
else return ";alert(\"[PhoneGap Error] Could not find sound file with path '" + path + "'.\");";
}
}
}
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