Display Data StreamChapter —6
268 TE 2000
5250 Terminal Emulation Programmer’s Guide
Save Screen (Immediate)
Function
The Save Screen command sends the state of the terminal to the host. In-
formation sent to the host includes:
S Format table
S Display buffer
S Keyboard state
S Cursor location
S Code returned in response to the Help key
S Any outstanding AID requests
S Any outstanding Read commands
Restrictions
This command must be the last command in the SNA chain and CD must
be on. The command is rejected if the addressed LU is in either the system
request or SS message state.
Format
The command takes the following f orm:
ESC Save Screen Command
Hex 04 Hex 62
The format of the returned data is:
Byte 1 Byte 2 Byte 3 Byte 4
Escape Restore Screen <terminal s tate> <terminal state>
Byte 5 and all remaining bytes contain the Save Screen information.
Results
All data required for restoring the display are sent to the host system. It
must not be modified by the host system if the result of the Restore Screen
command is to have integrity.
To Next Page
Loading...
