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: popup_list


Display a drop-down list.     DCL Active Tile


This active tile displays a drop-down list box. Contrary to its name, the popup_list drops down, not up.

The popup_list tile first appears as a single line, and more of the list appears when the user clicks the down-arrow. If necessary, the dropped down list also includes This tile is useful when dialog box space is limited.

NOTE By contrast, a popup_list does not permit.

Creating and Modifying a Pop-up List with LISP Functions

To create and modify the list displayed by the popup_list tile, use these LISP functions:

  • (start_list "key" int1 int2)
  • The start_list function takes three arguments. The key argument identifies the name of the popup_list tile. The int1 argument specifies the action to take:

int1 Meaning
1 Change one item in the list.
2 Add an item to the end of the list.
3 Create a new list; the default.

    The int2 argument specifies the item # to change (the first item in the list is #0); int2 is only used when int1 is 1. For example:

    (start_list "L1" 1 3     ; changes the fourth item in the list.

  • (add_list "string")
  • To make the change, use the add_list function. The string argument specifies the text that will be added or replaced in the list:

    (start_list "L1" 1 3     ; Changes the fourth item in the list.

    (add_list "New item")

    When start_list is in change mode (int1 = 1), each call to add_list changes the same item. When start_list is in add mode (int1 = 2), each call to add_list adds another item to the end of the list.

  • (end_list)
  • To end the list processing, call the end_list function, as follows:

    (start_list "L1" 1 3     ; changes the fourth item in the list.

    (add_list "New item")

    (end_list)

NOTE There are no LISP functions for inserting an item in the middle of the list nor for deleting an item from the list.

Valid Attributes

: popup_list {

          action = "(string)";

          alignment = position;

          edit_width = number;

          fixed_height = flag;

          fixed_width = flag;

          height = number;

          is_enabled = flag;

          is_tab_stop = flag;

          key = "string";

          label = "string";

          list = "string";

          mnemonic = "char";

          tabs = "string";

          value = "string";

          width = number;

}

Example     

: popup_list {

          action = "(patternlsp)";

          edit_width = 0;

          key = "PL2";

          value = "Closed\nFilled\nOpen";

          list = "2";

}

NOTE

    • The label attribute displays the text to the left of the popup list box.
    • The value attribute determines which items on the list are initially selected or highlighted. The attribute consists of a string of integers separated by spaces, such as:
      value = "0 2 5";
    • The first item is #0. A null string "" means no items are highlighted.

button

edit_box

image_button

list_box

radio_button

slider

toggle

Programming Overview of DCL (Dialog Control Language)

About Predefined Attributes

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