The context specification area is used to display information about contexts, and consists of the following fields: o context o parent o context file o context database entries The context specification area consists of read-only fields. Use the menu bar functions to make changes to any of these fields. Context Field You can display a context name in the Context field by single- clicking on a line in the Context Database Entries field or by selecting the New menu item from the File menu. Parent Field The DECset Environment Manager does not allow a circular ancestral chain. If a circular chain is detected, the DECset Environment Manager displays an error message dialog box, and aborts the operation on that context. Context File Field If you select an existing context file from the Context Database Entries field, the name of the context and the associated information is displayed in the read-only Context, Parent, and Context File fields. For a new context, or one for which you are modifying the associated context file specification, you may use the Modify Database Entry... menu item from the File menu to bring up a file selection widget. If any part of the file specification is not supplied; for example, the disk name, the corresponding component of your current default directory specification is used. If the name or the file type is not specified, the name of the currently- specified context is used as the file name and .DECSET_CONTEXT is used as the file type. Context Database Entries Field The context names (and some associated information) are retrieved from the context database listed in the Context Database Entries field of the DECset context window.
1 – ctxt TxtF
You can display a context name in the Context field by single- clicking on a line in the Context Database Entries field or by selecting the New menu item from the File menu.
2 – parnt TxtF
The DECset Environment Manager does not allow a circular ancestral chain. If a circular chain is detected, the DECset Environment Manager displays an error message dialog box, and aborts the operation on that context.
3 – ctxtFil TxtF
If you select an existing context file from the Context Database Entries field, the name of the context and the associated information is displayed in the read-only Context, Parent, and Context File fields. For a new context, or one for which you are modifying the associated context file specification, you may use the Modify Database Entry... menu item from the File menu to bring up a file selection widget. If any part of the file specification is not supplied; for example, the disk name, the corresponding component of your current default directory specification is used. If the name or the file type is not specified, the name of the currently- specified context is used as the file name and .DECSET_CONTEXT is used as the file type.
4 – knownCtxts Form
The context names (and some associated information) are retrieved from the context database listed in the Context Database Entries field of the DECset context window.
4.1 – knCtxtsFrm ScrLst
The context names (and some associated information) are retrieved from the context database listed in the Context Database Entries field of the DECset context window.
5 – apply Btn
The Apply button causes the selected context object to be applied to any DECset tools displaying on the same DECwindows display as is the Context window. You may also double-click on the context in the Context Database Entries field to apply the context. In addition to applying this context, any command line qualifiers that are in effect are then re-applied to the tool. A named context must be saved before a context apply operation is initiated.
6 – save Btn
The Save button saves the context file shown in the Context File field. This action saves the current definitions/settings (possibly modified via the Settings menu) to the context file indicated in the Context File field of the main window. If the value in the Context File field has changed since the last Save operation for the current context, the DECset Environment Manager writes the new file specification to the context database. For a new context, the Save menu item ensures that the context is known by adding the specified context name and associated context file specification to the context database. The DECset Environment Manager displays a confirmation dialog box for final approval before saving new information in an existing context database entry and/or an existing context file. The saving of a context will affect other DECset tools displaying on the DECwindows display only when that context is subsequently applied.