Rob ha scritto: > On Thursday 06 November 2008 13:37, Doriano Blengino wrote: > >> i.e., LAST is a reference to the object that raised the event, and you >> can compare it to anything you like (probably widgets). >> > > Yes, that should work, but with limitations. You would have to hardcode > the name of the control you wish to compare against at compile time. > Gambas lacks enough introspection at present to obtain a reference to an > object using its symbol name at run time. (As far as I know, the same is > true of VB.) > Gambas does not lack introspection. You can compare LAST.name to a string, or LAST to a variable (an instance variable), or even look at the type of the object (object.Type(LAST)). The symbol name is a reference to the object, Mainly, my thought was directed to groups of widgets created at design time, where the name (symbol) of the widget/control *is* a reference to the object.
>> The tag system is another way - sometimes tags are better, sometimes >> control/widget reference is. >> > > Agreed. This will be easier if you have "OK" and "Cancel" buttons across > the bottom of the screen and want to tell which one got pressed, but if > you have an array of 64 buttons (or text boxes, like one of my clients) it > might be time to start assigning tags at control creation. > If you have a true array, then LAST = btns[0] should work. If you don't have an array (ie: for i=0 to 10 bnt = new Button....), then you don't have any reference to the objects you created, so clearly you can't compare to a reference you don't have... But note that you don't have to use Tag - you could use Name, Left, or whatever differentiates these controls each other. Of course, Tag is devoted to such things. Regards, Doriano ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
