/// <summary>
/// Thread method for managing headers.
/// </summary>
private void ManageHeaders()
{
// While the device is open.
while (IsOpen())
{
// Wait to be signalled when a header had finished being used.
resetEvent.WaitOne();
// While there are still headers in the queue.
while (syncHeaderQueue.Count > 0)
{
// Get header from the front of the queue.
MidiHeader header = (MidiHeader)syncHeaderQueue.Dequeue();
// Unprepare header.
int result = midiOutUnprepareHeader(handle, ref header,
Marshal.SizeOf(header));
// If an error occurred with unpreparing the system
// exclusive header.
if (result != MMSYSERR_NOERROR)
{
if (SysExHeaderErrorOccurred != null)
{
OutputDeviceException ex =
new OutputDeviceException(result);
SysExHeaderErrorOccurred(this,
new SysExHeaderErrorEventArgs(ex.Message));
}
}
// Free memory allocated for the system exclusive data.
Marshal.FreeHGlobal(header.data);
}
}
}
/// <summary>
/// Thread method for managing headers.
/// </summary>
private void ManageHeaders()
{
// While the device is open.
while(IsOpen())
{
// Wait to be signalled when a header had finished being used.
resetEvent.WaitOne();
// While there are still headers in the queue.
while(syncHeaderQueue.Count > 0)
{
// Get header from the front of the queue.
MidiHeader header = (MidiHeader)syncHeaderQueue.Dequeue();
// Unprepare header.
int result = midiOutUnprepareHeader(handle, ref header,
Marshal.SizeOf(header));
// If an error occurred with unpreparing the system
// exclusive header.
if(result != MMSYSERR_NOERROR)
{
if(SysExHeaderErrorOccurred != null)
{
OutputDeviceException ex =
new OutputDeviceException(result);
SysExHeaderErrorOccurred(this,
new SysExHeaderErrorEventArgs(ex.Message));
}
}
// Free memory allocated for the system exclusive data.
Marshal.FreeHGlobal(header.data);
}
}
}
