20-19Initialization CommandsDisable Backing StoreRegistry Entry: BackingStore = “off”Command Line: -BDefault Setting: onOnly applicable to versions of TeemTalk that support graphics emulations.WhenTeemTalk is in ReGIS mode it automatically stores a copy of graphics data in memorywhen graphics are initially drawn by the host in the window, a feature known as‘backing store’. This enables graphics to be redrawn quickly from local memory whenthe TeemTalk window is uncovered after being obscured by other windows, or whenthe window is restored or maximized from an iconized state. The backing store featurecan be disabled so that graphics data sent from the host can be drawn up to 50% faster.Enable Plane MaskingRegistry Entry: PlaneMasking = “on”Command Line: -PMDefault Setting: offOnly applicable to versions of TeemTalk that support ReGIS mode. When TeemTalkis in ReGIS mode and you are using an application that uses multiple surfaces, you canuse this command to enable TeemTalk to support them. Note that your PC must have adisplay adaptor that supports 256 colour mode and your system must be running inthis mode in order for multiple surfaces to be supported.Disable Sixel Graphics ScalingRegistry Entry: ScaleSixels = “off”Command Line: -YDefault Setting: onOnly applicable to versions of TeemTalk that support graphics emulations. By defaultthe ReGIS sixel graphics display of 800x400 (world coordinates) is automaticallyscaled to fit the current size of the TeemTalk window. This command will preventscaling of the image and cause the right and bottom edges of the image to be clipped tofit the window if it is too big.