internal RdpClient(ContainerControl parent, Size size, EventHandler resizeHandler)
{
this.parent = parent;
this.size = size;
try
{
rdpControl = rdpClient9 = new MsRdpClient9();
RDPConfigure(size);
//add event handler for when RDP display is resized
rdpClient9.OnRemoteDesktopSizeChange += rdpClient_OnRemoteDesktopSizeChange;
// CA-96135: Try adding rdpControl to parent.Controls list; this will throw exception when
// MsRdpClient8 control cannot be created (there is no appropriate version of dll present)
parent.Controls.Add(rdpControl);
allowDisplayUpdate = true;
needsRdpVersionWarning = false;
}
catch
{
//any problems: fall back without thinking too much
if (parent.Controls.Contains(rdpControl))
{
parent.Controls.Remove(rdpControl);
}
rdpClient9 = null;
rdpControl = rdpClient6 = new MsRdpClient6();
RDPConfigure(size);
parent.Controls.Add(rdpControl);
needsRdpVersionWarning = true;
}
rdpControl.Resize += resizeHandler;
}
internal RdpClient(ContainerControl parent, Size size, EventHandler resizeHandler)
{
this.parent = parent;
this.size = size;
try
{
rdpClient = new MsRdpClient9();
RDPConfigure(size);
//add event handler for when RDP display is resized
rdpClient.OnRemoteDesktopSizeChange += rdpClient_OnRemoteDesktopSizeChange;
rdpClient.Resize += resizeHandler;
// CA-96135: Try adding rdpControl to parent.Controls list; this will throw exception when
// MsRdpClient9 control cannot be created (there is no appropriate version of dll present)
parent.Controls.Add(rdpClient);
allowDisplayUpdate = true;
}
catch (Exception ex)
{
if (parent.Controls.Contains(rdpClient))
{
parent.Controls.Remove(rdpClient);
}
rdpClient.Dispose();
rdpClient = null;
Log.Error("Adding rdpControl to parent.Controls list caused an exception.", ex);
}
}
public void Connect(string rdpIP)
{
try
{
RDPSetSettings();
}
catch (Exception ex)
{
if (parent.Controls.Contains(rdpClient))
{
parent.Controls.Remove(rdpClient);
}
rdpClient.Dispose();
rdpClient = null;
Log.Error("Setting the RDP client properties caused an exception.", ex);
}
RDPConnect(rdpIP, size.Width, size.Height);
}
public void Dispose(bool disposing)
{
if (!disposed)
{
if (disposing)
{
if (rdpClient != null)
{
// We need to dispose the rdp control. However, doing it immediately (in the control's own
// OnDisconnected event) will cause a horrible crash. Instead, start a timer that will
// call the dispose method on the GUI thread at the next available opportunity. CA-12902
Timer t = new Timer();
t.Tick += delegate
{
try
{
Log.Debug("RdpClient Dispose(): rdpControl.Dispose() in delegate");
rdpClient.Dispose();
}
catch (Exception)
{
// We often get NullReferenceException here
}
t.Stop();
RdpCleanupTimers.Remove(t);
Log.Debug("RdpClient Dispose(): Timer stopped and removed in delegate");
};
t.Interval = 1;
RdpCleanupTimers.Add(t);
Log.DebugFormat("RdpClient Dispose(): Start timer (timers count {0})", RdpCleanupTimers.Count);
t.Start();
}
else
{
Log.Debug("RdpClient Dispose(): rdpControl == null");
}
}
rdpClient = null;
Log.Debug("RdpClient Dispose(): disposed = true");
disposed = true;
}
}