how KeyPressFcn function works?

2015 9 24
1 个回答
更新时间：2018 7 13
23 次查看（30 天）

0 个投票

hi everyone, i have an edit text, pressing backspace, only when edit text become empty i want to set a string into a static text. how can i do? something like:
function edit_T KeyPressFcn(hObject, eventdata, handles)
if "press backspace" && "edit_T is empty"
set(handles.static_text,'String',string);

请先登录，再回答此问题。

回答（1 个）

Walter Roberson
Walter Roberson 2015-9-24

1 个投票

http://www.mathworks.com/help/matlab/ref/uicontrol-properties.html#property_keypressfcn
"If you specify this property as a function handle (or cell array containing a function handle), MATLAB passes an object containing callback data as the second argument to the callback function. This object contains the properties described in the following table."
For backspace, the 'key' property will contain 'backspace'

类别

在 帮助中心 和 File Exchange 中查找有关 Interactive Control and Callbacks 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by