User guide

RGS properties 144
The sequence chart in Figure 8-6 shows operation for the default property value of 4. In this case, the Receiver
can have up to 4 image update requests outstanding at any given time. When image update response #1 is
received (meaning that there are now 3 outstanding image update requests), the Receiver can issue image update
request #5 (again, up to a maximum of 4 outstanding image update requests at any given time).
Figure 8-6 Sequence chart for the default property value of 4
The sequence can vary considerably from that shown in Figure 8-6. For example, image update response #1
might be received prior to issuance of image update request #4. Also, TCP will temporarily block the Sender from
sending further data if the Receiver network buffer becomes full. Nonetheless, the sequence shown in Figure 8-6
serves to parallelize local display updates that otherwise would occur serially.
The default property value of 4 was determined empirically as a good compromise for both low and high-latency
network environments. Larger numbers of outstanding requests may be beneficial in some cases depending on the
number and types of updates occurring. In high-latency network environments, HP recommends that you
characterize RGS performance for different values of the Rgreceiver.MaxImageUpdateRequests property.
8-4-4 Receiver browser properties
Rgreceiver.Browser.IsMutable=bool (1)
This property only applies to the Linux RGS Receiver. If set to 1, the name of the browser used to display online
help can be changed by the user in the Receiver Control panel. If set to 0, the name of the browser cannot be
changed by the user.
Rgreceiver.Browser.Name=string (”mozilla”)
Rgreceiver.Browser.Name.IsMutable=bool (1)
This property only applies to the Linux RGS Receiver, and can be used to set the name of the browser to display
online help. For example, setting Rgreceiver.Browser.Name=mozilla will start the Mozilla browser when
the Help button is clicked in the Receiver Control Panel.
For the Windows Receiver, the Help system is based on a CHM file, which is displayed by the hh.exe program.
Sender
Receiver
Image update request #1
Image update request #2
Image update response #1
Image update request #3
Image update request #4
Image update request #5
Image update response #2
Image update request #6