variable: global or in guidata
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
which is more useful in gui programming, to save the variable in handles structure or to make it global to have access on it?
0 commentaires
Réponse acceptée
Daniel Shub
le 17 Nov 2011
I would suggest you avoid global variables. They are more powerful than what you need, and therefore probably not the best choice. The FAQ has a couple of suggestions:
0 commentaires
Plus de réponses (2)
Alex
le 17 Nov 2011
Global variables are often a bad choice when programming.
Another option for sharing data through a gui is basing the gui in a class. This is my preferred method.
0 commentaires
Jan
le 17 Nov 2011
In case of problems it is hard to find the code, which is responsible for the last changes in the global variables. In addition the uasge of globals lead to problems, if you want to open multiple instances of the GUI.
Therefore I prefer guidata - which calls setappdata internally, so you can call it directly also. Using the figure's UserData is equivalent. For conventional reasons I use the UserData for static values as handles and the application data for dynamic values like the current choice of variables etc. But this is a question of taste.
0 commentaires
Voir également
Catégories
En savoir plus sur Whos dans Help Center et File Exchange
Produits
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!