public PropVariant GetValue(int index)
{
PROPERTYKEY key = Get(index);
Marshal.ThrowExceptionForHR(_Store.GetValue(ref key, out PropVariant result));
return(result);
}
public PropertyStoreProperty this[int index]
{
get
{
PROPERTYKEY key = Get(index);
Marshal.ThrowExceptionForHR(_Store.GetValue(ref key, out PropVariant result));
return(new PropertyStoreProperty(key, result));
}
}
public bool Contains(PROPERTYKEY testKey)
{
for (int i = 0; i < Count; i++)
{
PROPERTYKEY key = Get(i);
if (key.fmtid == testKey.fmtid && key.pid == testKey.pid)
return true;
}
return false;
}
public bool Contains(PROPERTYKEY testKey)
{
for (int i = 0; i < Count; i++)
{
PROPERTYKEY key = Get(i);
if (key.fmtid == testKey.fmtid && key.pid == testKey.pid)
{
return(true);
}
}
return(false);
}
public PropertyStoreProperty this[PROPERTYKEY testKey]
{
get
{
for (int i = 0; i < Count; i++)
{
PROPERTYKEY key = Get(i);
if (key.fmtid == testKey.fmtid && key.pid == testKey.pid)
{
Marshal.ThrowExceptionForHR(_Store.GetValue(ref key, out PropVariant result));
return(new PropertyStoreProperty(key, result));
}
}
return(null);
}
}
public PropertyStoreProperty this[PROPERTYKEY testKey]
{
get
{
PropVariant result;
for (int i = 0; i < Count; i++)
{
PROPERTYKEY key = Get(i);
if (key.fmtid == testKey.fmtid && key.pid == testKey.pid)
{
Marshal.ThrowExceptionForHR(_Store.GetValue(ref key, out result));
return new PropertyStoreProperty(key, result);
}
}
return null;
}
}
public void OnPropertyValueChanged([In, MarshalAs(UnmanagedType.LPWStr)] string pwstrDeviceId, PROPERTYKEY key)
{
InvokeOnSynchronizationContext(() =>
{
var handler = DevicePropertyChanged;
if (handler != null)
{
MMDevice device = GetDevice(pwstrDeviceId);
if (device == null)
{
return; // Device was already removed by the time I got here
}
handler(this, new MMDeviceEventArgs(device));
}
});
}
internal PropertyStoreProperty(PROPERTYKEY key, PropVariant value)
{
_PropertyKey = key;
_PropValue = value;
}
internal PropertyStoreProperty(PROPERTYKEY key, PropVariant value)
{
_PropertyKey = key;
_PropValue = value;
}