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On the General page you can select and configure the specific type of terminal you want to emulate. These settings only affect the current project.
To display the Display settings, General page; after choosing your host type, from the Host menu, choose Display Settings, then General.
Terminal Type: Select the terminal operating mode from the drop-down list. VT400-7bit is suitable for most applications.
Type Description VT400-7bit VT420 features with 7-bit control codes. VT400-8bit VT420 features with 8-bit control codes. VT100 VT100 compatible.
Local Mode: Local mode is an operating mode in which data you type is sent from the keyboard to the screen, but not to the host. When in this mode, data received from the host is buffered until you return the terminal to the on-line state.
Local Echo: Select this option to display characters on the screen as the client sends them to the host. When this option is cleared, characters are sent to the host without being displayed on the screen (unless the host echos them back). Usually, you don't need to select local echo because host echo is on. If you are in local mode, echo is not relevant because nothing is being sent to the host.
Terminal Identification
Answerback: (Optional) Specify your answerback string. The string is sent in response to and ENQ request from the host. The answerback string can include up to 31 characters, including control and special codes. Type control codes in the range 0 to 31 as circumflex (^) followed by a character. Type any special code as a circumflex (^) followed by three decimal numbers. DA Response: Select the terminal type from the drop-down list to provide the matching primary and secondary device attributes (DA) response for your host type. Device attributes, stored as control sequences, describe the VT terminal and its configuration. When the host requests a device attribute (DA) report, the terminal sends a DA response identifying the particular type of terminal. There are two types of DA exchanges between the host and the terminals; the primary DA and the secondary DA.
—The Primary DA: In this exchange the host asks for the terminal's service class code and basic attributes. This usually occurs each time you log in to a VMS host. —The Secondary DA: In this exchange the host requests the terminal's identification code, firmware version level, and hardware options. This is not commonly used. If you select, Custom, you can configure the primary device attributes and secondary device attributes reports by typing your own sequences in the Primary and Secondary edit boxes. Otherwise, these two reports assume a default based on the selected terminal type.
This table lists common primary DA responses
This terminal
Commonly uses this identification sequence
VT420
CSI?64;1;2;6;7;8;9;15;18;19;21c
VT340
CSI?63;1;2;3;4;6;7;8;9;13;15;16;18;19c
VT320
CSI?63;1;2;6;7;8;9c
VT220
CSI?62;1;2;6;7;8;9c
VT102
ESC[6c
VT101
ESC[1;0c
VT100
ESC[1;2c
For example, if the DA Response is set to VT420, the default value, the terminal would respond to a primary host DA request with this sequence: <CSI>?64;1;2;6;7;8;9;15;18;19;21c
The "64" indicates it's a VT400 level terminal. The rest of the numbers indicate which features a VT420 terminal supports; 132 columns, a printer port, supports selective erase, soft character sets, user-defined keys, and so on.
Primary: (Optional) Specify your own Primary DA (Device Attributes) response. If you selected Custom under DA response, this string is sent in response to a Primary Device Attributes request. Type control codes in the range 0 to 31 as circumflex (^) followed by a character. Type any special code as a circumflex (^) followed by three decimal numbers.
Secondary: (Optional) Specify your own Secondary DA (Device Attributes) response. If you selected Custom under DA response, this string is sent in response to a Secondary Device Attributes request. Type control codes in the range 0 to 31 as circumflex (^) followed by a character. Type any special code as a circumflex (^) followed by three decimal numbers.
Host Lock Out
Lock User Defined Keys (UDKs) Select this option to prevent the host from changing the user-defined key (UDK) definitions, which you set on the Display Settings Keyboard page.
Lock Some User Preferences Select this option to prevent the host from changing the columns and inverse screen options, which you set on the Display Settings Screen and Advanced pages.
Disable ANSI Locator Mode Select this option to disable ANSI locator mode. In ANSI Locator mode, the cursor changes to a crosshair, and the client communicates to the host about the cursor location via locator device status reports (DSRs). If this option is selected, control sequences to enable ANSI locator mode are ignored.
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