public VncReadMessageBody ReadServerMessage()
{
if (m_readingServerMessage)
{
return(null);
}
m_readingServerMessage = true;
try
{
var readBody = VncComm.ReadServerMessage(m_readStream,
m_serverInitBody.ServerPixelFormat.BytesPerPixel,
m_serverInitBody.ServerPixelFormat.BigEndianFlag);
// Set after WriteFramebufferUpdateRequest to prevent the excess data
VncReadMessageBody retBody = null;
var messageType = (VncEnum.MessageTypeServerToClient)readBody[0];
if (messageType == VncEnum.MessageTypeServerToClient.FramebufferUpdate)
{
var encodeList = VncEncodeFactory.CreateVncEncodeFromBinary(readBody,
m_serverInitBody.ServerPixelFormat.BytesPerPixel,
m_serverInitBody.ServerPixelFormat.BigEndianFlag,
m_zrleReader);
// Draw to canvas
lock (CanvasLock)
{
foreach (var e in encodeList)
{
// Draw to canvas
IVncPixelGetter pixelGetter = (e.EncodeType == VncEnum.EncodeType.ZRLE) ? m_pixelGetterZrle : m_pixelGetterNormal;
e.Draw(pixelGetter, m_canvas);
}
}
retBody = new VncReadMessageBody(messageType, encodeList, null);
}
else if (messageType == VncEnum.MessageTypeServerToClient.SetColorMapEntries)
{
var colorMap = new VncSetColorMapEntriesBody(readBody);
m_pixelGetterNormal.SetColorMap(colorMap);
retBody = new VncReadMessageBody(messageType, null, colorMap);
}
onRead(new VncReadEventArgs(readBody, retBody));
return(retBody);
}
catch (Exception a_ex)
{
cleanupForDisconnect(a_ex);
onDisconnected(new VncCauseEventArgs(a_ex));
return(null);
}
finally
{
m_readingServerMessage = false;
}
}
public VncReadEventArgs(byte[] a_bodyRaw, VncReadMessageBody a_body)
{
BodyRaw = a_bodyRaw;
Body = a_body;
}