Using the Terminal
Controlling the Appearance and Behavior of the Terminal
This chapter describes different ways to control the appearance and behavior of the Terminal in interactive mode. It covers the following topics:
To specify the font size to use, select Edit > Font
. This displays a dialog box where you can select a typeface, size, and style appropriate to your monitor and resolution.
If you choose a font size that would expand the window beyond the borders of your screen, the Terminal automatically resizes both screen and font to the largest size available.
Also, whenever you switch to a different size screen, the Terminal attempts to use the preselected font for that size.
To specify the colors to use, select Edit > Color
. This displays a dialog box where you can select the default foreground and background colors for the Terminal. Then select one of the following:
changes only the current Terminal.
does not change the current instance but saves the color information for new instances of the Terminal.
You can adjust the colors from the expected ANSI-named colors to any colors that the display board can deliver. These colors are saved along with the foreground and background choices. To select the default colors, select Default
and then choose the colors.
Specifying the Window Size
To specify the Terminal window size, select Edit > Window Size
. This displays a dialog box where you specify the window size:
The maximum number of columns is 132 and the maximum number of rows is 64. As you make changes, the dialog box updates the number of scrollback lines and the number of pages available. Then select one of the following:
changes only the current Terminal.
does not change the current instance but saves the window size information for new instances of the Terminal.
When you change the window size, the Terminal erases all current data in both the current display page and all back pages. Further, if there is a font selected for that size, the Terminal selects it.
Defining Custom Key Combinations
To define custom key combinations, select Edit > User Keys
. This displays a dialog box where you can associate a Caché command with any of the following key combinations: Alt+Shift+F1
updates the current instance and saves the key sequences for future instances of the Terminal.
To include a non-printable characters in the command, use the decimal equivalent (nnn
) of the character. You may also use one of <CR>, <F10>, <F7>, <DO>, <TAB>, <LF>, <ESC>, <CSI>, <NL> (= <CR><LF>).
You can also use <P1>, <P2>, and other command line parameters.
Specifying Other User Settings
To specify user settings, select Edit > User Settings
. This displays a dialog box where you can specify both the current setup and initial values of various parameters used by the Terminal. The settings are as follows:
||Automatic wrapping at right hand column
|<- Key sends ^H
||Set to have <X> key send Ctrl+H rather than Delete
||Enable Application Mode keypad
|Force Numeric Pad
||Force standard PC keypad
|Disable Special ID
||Do not send special Terminal ID
|Disable Mouse Reports
||Do not sent mouse reports
|Enable Fast Paint
||Enable fast paint mode
|Paste Keeps Linefeed
||Set to send line feeds from clipboard (along with carriage return)
|Pass XOFF Through
||Let remote host handle XOFF/XON.
|Windows edit accelerators
||Specifies whether the Terminal enables the common Windows edit shortcuts (Ctrl+C, Ctrl+V, Ctrl+Shift+V), in addition to the basic Terminal edit shortcuts (Ctrl+Insert and Shift+Insert).
If these Windows shortcuts are not enabled, the characters are passed in the data stream to the Caché server process.
|Paste burst size (in bytes)
||The number of characters to paste in one transmission
|Paste pause time (in msec)
||The number of milliseconds between successive transmissions of pasted material longer than the burst size
Some systems cannot accept data as fast as the Terminal can send it. Thus, the Paste burst size
determines how much to send at once and the Paste pause time
determines the pause time between transmissions. If either setting is less than 1, the entire clipboard is sent at once.
Specifying the Network Encoding
The network encoding of the Terminal controls how characters are translated at the following times:
When the Terminal translates keyboard input into its display memory, which uses Unicode. Characters received from the keyboard are translated from the single or multibyte character stream using the current Windows input character set. This means that if you change your input language, the Terminal recognizes the change and adapts to it. This enables you to type in mixed languages; the Terminal recognizes it and translates properly into its internal Unicode representation. If you use mixed-language input, select UTF8
as your network encoding and your Caché $ZMODE
I/O translation table.
When the Terminal communicates with a peer server. Characters transmitted to the server are translated from the internal Unicode representation to a network encoding and characters received from the server are translated from the network encoding to Unicode.
The default network encoding is UTF8, even on 8-bit systems.
To specify the network encoding, select Edit > Network Encoding
. This displays a dialog box where you can choose the network encoding for the Terminal to use. There are 4 choices: UTF8
, and EUC
. Because these encodings are not all relevant to every input locale, only the relevant choices are enabled on the menu.
When you select the UTF8 option, the Terminal translates the internal Unicode characters to UTF8 on output to the server and from UTF8 when received from the server. If you select UTF8, the Caché I/O translation for your principal I/O device must be UTF8. You can determine the I/O translation from $ZMODE
. It is the fourth field; fields are delimited by backslashes (\
When you select the Windows option, the Terminal uses the current Windows input code page to translate I/O between the Terminal and the server, to and from the internal Unicode character set encoding. When you use the Windows encoding, make sure to set the Caché I/O translation ($ZMODE
) to that it expects the character set represented by the active Windows code page.
When you select the ISO option, the Terminal uses the following ISO 8859-X code pages to translate I/O to and from the peer server. The Terminal selects the appropriate ISO code page based on the current Windows input code page. The following mappings are enabled:
||Windows Code Page
||Network Code Page
All other Windows input code pages use the Windows code page if the ISO network encoding is selected.
When using the ISO encoding, you must ensure that the Caché I/O translation shown in $ZMODE
is consistent with the character set represented by the active ISO code page used by the Terminal.
The EUC encoding is relevant to far Eastern languages and is used to communicate with certain UNIX® systems. When you select the EUC option, the Terminal uses the following code pages to translate I/O to and from the server. The Terminal selects the appropriate EUC code page based on the current Windows input code page. The following mappings are enabled:
||Windows Code Page
||Network Code Page
Japanese (JIS) support is provided under the ISO network encoding using the 50220 code page to translate to/from the internal Unicode.
Specifying the Physical Character Setting of the Display
To specify the physical character setting, select Edit > Display Physical Character Setting
and then select either Logical
. This option controls the aspect of the characters displayed in the Terminal window. The difference is apparent only when using multibyte character sets.