// The read method, reads data from the virtual channel
private void read(out byte[] data)
{
byte[] readInData = new byte[1536];
GCHandle pinned = GCHandle.Alloc(readInData, GCHandleType.Pinned);
IntPtr address = pinned.AddrOfPinnedObject();
uint bytesread = 0;
int returnValue = WTSapi32.WTSVirtualChannelRead(handleFenrir, int.MaxValue, readInData, 1536, out bytesread);
pinned.Free();
byte[] correct = new byte[bytesread];
Array.Copy(readInData, correct, bytesread);
data = correct;
Array.Clear(readInData, 0, readInData.Length);
Application.DoEvents();
}
public void sendToVC(String line, IntPtr handle)
{
byte[] bBeginning = System.Text.Encoding.Unicode.GetBytes("Start of Request");
int bytesforBeginning = 0;
WTSapi32.WTSVirtualChannelWrite(handle, bBeginning, bBeginning.Length, ref bytesforBeginning);
int incomingOffset = 0;
byte[] bData = System.Text.Encoding.Unicode.GetBytes(line);
byte[] bChunk = new byte[1024];
while (incomingOffset < bData.Length)
{
int length = Math.Min(bChunk.Length, bData.Length - incomingOffset);
Buffer.BlockCopy(bData, incomingOffset, bChunk, 0, length);
incomingOffset += length;
// Transmit outbound buffer
try
{
//neeed to split this down to less than 1.5k
byte[] title;
read(out title);
string sReceived = "";
foreach (byte b in title)
{
if (b != 0)
{
char c = Convert.ToChar(b);
sReceived += c;
}
else
{
}
}
if (sReceived == "Received")
{
int bytesWritten = 0;
WTSapi32.WTSVirtualChannelWrite(handle, bChunk, bChunk.Length, ref bytesWritten);
Array.Clear(bChunk, 0, bChunk.Length);
}
}
catch
{
Console.WriteLine("Error" + Environment.NewLine);
}
}
byte[] bTerminator = System.Text.Encoding.Unicode.GetBytes("End of Request");
int bytes = 0;
WTSapi32.WTSVirtualChannelWrite(handle, bTerminator, bTerminator.Length, ref bytes);
//The read section to retrieve the response is below here!!!!!!!
sFullResponse = "";
while (true)
{
try
{
byte[] bResponse;
read(out bResponse);
string sResponse = "";
foreach (byte b in bResponse)
{
if (b != 0)
{
char c = Convert.ToChar(b);
sResponse += c;
}
else
{
}
}
if (sResponse == "End of Response")
{
break;
}
else if (sResponse == "Received")
{
//do nothing
}
else
{
sFullResponse += sResponse;
}
}
catch
{
Console.WriteLine("Error" + Environment.NewLine);
}
}
}
