private void UpdateSpotifyState(int processId)
{
this.ProcessIdChanged = (this.ProcessId != processId);
this.ProcessId = processId;
_mainWindow = IntPtr.Zero;
if (this.ProcessId != 0)
{
//We use pinvoke because Process infos from Process class doesn't contains accurate informations
_mainWindow = Win32PInvoke.FindWindow(SPOTIFY_WINDOW_CLASS_NAME, null);
if (_mainWindow != IntPtr.Zero)
{
string windowName = Win32PInvoke.GetWindowText(_mainWindow);
this.WindowNameChanged = (this.WindowName != null && windowName != this.WindowName);
bool previousIsPlayingState = this.IsPlaying;
this.WindowName = windowName;
this.IsPlayingChanged = (previousIsPlayingState != this.IsPlaying);
UpdateTrackInfos();
}
else
{
_trackInfos.ClearInfos();
}
}
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (!(value is Bitmap))
{
return(null);
}
IntPtr hBitmap = ((Bitmap)value).GetHbitmap();
try
{
return(System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
hBitmap,
IntPtr.Zero,
Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions()));
}
catch (Win32Exception)
{
return(null);
}
finally
{
Win32PInvoke.DeleteObject(hBitmap);
}
}
public void PlayNext()
{
if (!this.IsSpotifyRunning)
{
return;
}
Win32PInvoke.PostMessage(_mainWindow, 0x319, IntPtr.Zero, new IntPtr(0xB0000));
}
// Based on http://spotifycontrol.googlecode.com/svn/trunk/SpotifyControl/ControllerClass.vb
public void PlayPause()
{
if (!this.IsSpotifyRunning)
{
return;
}
Win32PInvoke.PostMessage(_mainWindow, 0x319, IntPtr.Zero, new IntPtr(0xE0000));
PropertyChanged.Notify(() => IsPlaying);
}
public void BringToTop()
{
if (!this.IsSpotifyRunning)
{
return;
}
Win32PInvoke.ShowWindow(_mainWindow, Win32PInvoke.WindowShowStyle.ShowNormal);
Win32PInvoke.SetForegroundWindow(_mainWindow);
Win32PInvoke.SetFocus(_mainWindow);
}
public void VolumeDown()
{
if (!this.IsSpotifyRunning)
{
return;
}
//This will press the ctrl key then send a the KeyDown to the spotifyHandle
Win32PInvoke.keybd_event(Keys.ControlKey, 0x1D, Win32PInvoke.KeyEvent.None, UIntPtr.Zero);
Win32PInvoke.PostMessage(_mainWindow, 0x100, new IntPtr((int)Keys.Down), IntPtr.Zero);
//Wait a little
Thread.Sleep(100);
//Release the ctrlkey
Win32PInvoke.keybd_event(Keys.ControlKey, 0x1D, Win32PInvoke.KeyEvent.KeyUp, UIntPtr.Zero);
}
private void EnableAppInit(RegistryKey parent, string path, string dllname, out int prevEnabled, out string prevStr)
{
RegistryKey key = parent.OpenSubKey("Microsoft", true);
if (key == null)
{
prevEnabled = 0; prevStr = ""; return;
}
key = key.OpenSubKey("Windows NT", true);
if (key == null)
{
prevEnabled = 0; prevStr = ""; return;
}
key = key.OpenSubKey("CurrentVersion", true);
if (key == null)
{
prevEnabled = 0; prevStr = ""; return;
}
key = key.OpenSubKey("Windows", true);
if (key == null)
{
prevEnabled = 0; prevStr = ""; return;
}
object o = key.GetValue("LoadAppInit_DLLs");
if (o == null || !(o is int))
{
prevEnabled = 0; prevStr = ""; return;
}
prevEnabled = (int)o;
o = key.GetValue("AppInit_DLLs");
if (o == null || !(o is string))
{
prevEnabled = 0; prevStr = ""; return;
}
prevStr = (string)o;
key.SetValue("AppInit_DLLs", Win32PInvoke.ShortPath(Path.Combine(path, dllname)));
key.SetValue("LoadAppInit_DLLs", (int)1);
}