fgl_getlastwidgetid() returns the identifier of the last triggered widget.
Syntax:
CALL fgl_getlastwidgetid()
Usage and examples:
The function will be especially useful for applications with complex, many-level static menus and multiple actions because it provides a simple, customer-friendly tool for optimizing the application performance and developing a better structured 4gl code.
Moreover, it can be used with any Lycia widget or event.
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4gl code |
MAIN DEFINE id_var STRING OPEN WINDOW w WITH FORM "fgl_getlastwidgetid" ATTRIBUTE(BORDER) MENU ON ACTION "act1" LET id_var = fgl_getlastwidgetid() CALL fgl_winmessage("", id_var,"info") ON ACTION "act2" LET id_var = fgl_getlastwidgetid() CALL fgl_winmessage("", id_var,"info") ON ACTION "act3" EXIT MENU END MENU END MAIN
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after triggering a widget, |
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we get the result depending on its id |
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In the example program, basic steps for using fgl_getlastwidgetid() include:
loading the start menu;
listening for the button click event in a while loop;
reading the identifier for the last selected widget when the button is raised (this widget is one of the menu buttons);
launching the corresponding application based on the identifier.
Example programs:
CVS server: client.querix.com
CVS repository: /lycia_doc_examples
User: client
Project: lycia_library/functions
Program: fgl_getlastwidgetid
Project: static_menu
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