How to Change the Min property of slider?

3 次查看（过去 30 天）
Rightia Rollmann
Rightia Rollmann 2017-2-21
评论： Adam 2017-2-21
The code below works perfectly until I change Min from 0 to 1. Why cannot I set it 1? What is the solution?
function test3()
hfig = figure();
slider = uicontrol('Parent', hfig,...
'Style', 'Slider',...
'Tag', 'slider1',...
'Callback', @slider_callback,...
'Min', 0,...
'Max', 40,...
'SliderStep', [1/40 10/40]);
function slider_callback(hObject, eventdata)
a = get(hObject, 'Value');
disp( a );
  1 个评论
Jan
Jan 2017-2-21
Please use the "{} Code" button to format code in the forum. I've done this for you this time.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Jan
Jan 2017-2-21
编辑：Jan 2017-2-21
When you set the 'Min' value to 1, the current 'Value' is still at 0. Therefore you should see the warning:
Warning: slider control can not have a Value outside of Min/Max range
Control will not be rendered until all of its parameter values are valid
Considering this:
function test4()
hfig = figure();
slider = uicontrol('Parent', hfig,...
'Style', 'Slider',...
'Tag', 'slider1',...
'Callback', @slider_callback,...
'Min', 1, 'Max', 40,...
'Value', 1, ... % <- Inside [Min, Max]
'SliderStep', [1/40 10/40]); % Perhaps [1/39, 10/39]
function slider_callback(hObject, eventdata)
a = get(hObject, 'Value');
disp(a);
  3 个评论
显示 1更早的评论
Adam
Adam 2017-2-21
I usually factor it out into another function that I call from the _OpeningFcn, just to keep it a bit tidier, but it all amounts to the same thing.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Startup and Shutdown 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