Returning values in a GUI Callback
9 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
How do you return a value from the callback routine(File_Select_Callback), back up to the calling routine (Selection), In the following example,
What I want is the directory path from the* uigetfile* function back up to the calling funtion.
function Selection
Input_Select = uicontrol('Style','pushbutton','String','
Select Inoput File', 'Position', [300 50 100 25],
'Callback'...,{@File_Select_Callback});
end
*function File_Select_Callback* (hObject,eventdata)
[filename,Path] = *uigetfile*('*.*','Select the File', 'MultiSelect','on');
end
0 commentaires
Réponses (2)
Sean de Wolski
le 23 Avr 2012
most Callbacks do not return output arguments. What it looks like you want it for the UICONTROL, upon being pushed, to return stuff. This will not work. Instead once you get the filename and path, store these to application data (setappdata/getappdata) or to the field of another uicontrol (perhaps a static text box). You can then access these from elsewhere.
2 commentaires
Walter Roberson
le 23 Avr 2012
*Most* callbacks. zoom ButtonDownFilter is an example of something that is designated a callback but returns a value.
Walter Roberson
le 23 Avr 2012
It is not possible to return a value from most callbacks; you can only return a value from filter functions such as the zoom ButtonDownFilter.
0 commentaires
Voir également
Catégories
En savoir plus sur Migrate GUIDE Apps dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!