/// <summary>
/// Get array of available RtMidi API's (if any)
/// </summary>
/// <returns>The available apis.</returns>
public static IEnumerable <RtMidiApi> GetAvailableApis()
{
var apisPtr = IntPtr.Zero;
try
{
// Get number of API's
var count = RtMidiC.GetCompiledApi(IntPtr.Zero, 0);
if (count <= 0)
{
return(new RtMidiApi[0]);
}
// Get array of available API's
var enumSize = RtMidiC.Utility.SizeofRtMidiApi();
apisPtr = Marshal.AllocHGlobal(count * enumSize);
RtMidiC.GetCompiledApi(apisPtr, (uint)count);
// Convert to managed enum types
switch (enumSize)
{
case 1:
var bytes = new byte[count];
Marshal.Copy(apisPtr, bytes, 0, bytes.Length);
return(bytes.Select(b => (RtMidiApi)b));
case 2:
var shorts = new short[count];
Marshal.Copy(apisPtr, shorts, 0, shorts.Length);
return(shorts.Select(s => (RtMidiApi)s));
case 4:
var ints = new int[count];
Marshal.Copy(apisPtr, ints, 0, ints.Length);
return(ints.Select(i => (RtMidiApi)i));
case 8:
var longs = new long[count];
Marshal.Copy(apisPtr, longs, 0, longs.Length);
return(longs.Select(l => (RtMidiApi)l));
default:
Log.Error("Unexpected size {Size} of RtMidiApi enum", enumSize);
throw new NotSupportedException($"Unexpected size of RtMidiApi enum {enumSize}");
}
}
catch (Exception e)
{
Log.Error(e, "Unexpected exception occurred while listing available RtMidi API's");
return(new RtMidiApi[0]);
}
finally
{
if (apisPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(apisPtr);
}
}
}
public static IEnumerable <RtMidiApi> GetAvailableApis()
{
IntPtr apisPtr = IntPtr.Zero;
try {
// Get number of APIs
int count = RtMidiC.GetCompiledApi(IntPtr.Zero, 0);
if (count <= 0)
{
return(new RtMidiApi[0]);
}
// Get array of available APIs
int enumSize = RtMidiC.Utility.SizeofRtMidiApi();
apisPtr = Marshal.AllocHGlobal(count * enumSize);
RtMidiC.GetCompiledApi(apisPtr, (uint)count);
// Convert to managed Enum types
switch (enumSize)
{
case 1:
byte[] bytes = new byte[count];
Marshal.Copy(apisPtr, bytes, 0, bytes.Length);
return(bytes.Cast <RtMidiApi>());
case 2:
short[] shorts = new short[count];
Marshal.Copy(apisPtr, shorts, 0, shorts.Length);
return(shorts.Cast <RtMidiApi>());
case 4:
int[] ints = new int[count];
Marshal.Copy(apisPtr, ints, 0, ints.Length);
return(ints.Cast <RtMidiApi>());
case 8:
long[] longs = new long[count];
Marshal.Copy(apisPtr, longs, 0, longs.Length);
return(longs.Cast <RtMidiApi>());
default:
throw new NotSupportedException($"Unexpected size of RtMidiApi enum {enumSize}");
}
} catch (Exception) {
Console.Error.WriteLine("Unexpected exception occurred while listing available RtMidi APIs");
return(new RtMidiApi[0]);
} finally {
if (apisPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(apisPtr);
}
}
}
