Changing the background color or text color of an edit text field in the Mask Editor dialog box in MATLAB is not directly supported through the Mask Editor's built-in options. However, you can achieve this by using MATLAB code to customize the appearance of the mask dialog.
Below is the example of MATLAB code that I’ve tried in my local desktop :
After masking the required subsystem, in the code pane in mask editor I’ve written the following code -
classdef colorChangeCode
methods(Static)
function MaskInitialization(maskInitContext)
% Access the mask object
maskObj = maskInitContext.MaskObject;
% Set the default text color of the parameter prompt
param = maskObj.getParameter('m');
param.Prompt = 'Slope'; % Default color
end
function StartFcn()
% Set a flag to indicate the simulation has started
set_param(gcb, 'UserData', true);
end
function StopFcn()
% Use a timer to delay the change of the text color
t = timer('StartDelay', 1, 'TimerFcn', @colorChangeCode.changeColor);
start(t);
end
function changeColor(~, ~)
% Change the text color of the parameter prompt when simulation stops
maskObj = Simulink.Mask.get(gcb);
param = maskObj.getParameter('m');
param.Prompt = '<html><font color="red">Slope</font></html>';
end
end
end
Also, in Simulink model, right click and select Properties.
In the Callbacks tab, add the following code in StartFcn and StopFcn field respectively :
colorChangeCode.StartFcn();
colorChangeCode.StopFcn();
Once you run the simulation, the color of prompt field named “Slope” will change from default color to red. I’ve attached the screenshot of the same below.
Hope this helps. Thanks.
