How can I set the "Prompt location" property of a Simulink.MaskParameter programmatically.

The "promp location" of a mask parameter is available through the mask editor window, but the property is not available in the Simulink.MaskParameter class. How can it be set programmatically?

Answer 1

[Sahithi Kanumarlapudi]

Mask parameter “Prompt Location” can be set programatically using the command ‘p.DialogControl.PromptLocation’

Where p is a mask parameter.

Below is an example code

import Simulink.*; 
% give the path of the masked block to the get function
a = Simulink.Mask.get('filename/BlockName); 
p = a.Parameters(1); 

p has following properties

Type: 'edit' 
       TypeOptions: {0×1 cell} 
       Name: 'Parameter2' 
       Prompt: '' 
       Value: '0' 
       Evaluate: 'on' 
       Tunable: 'on' 
       NeverSave: 'off' 
       Hidden: 'off' 
       ReadOnly: 'off' 
       Enabled: 'on' 
       Visible: 'on' 
       ShowTooltip: 'on' 
       Callback: '' 
       Alias: '' 
       DialogControl: [1×1 Simulink.dialog.parameter.Edit] 
       ConstraintName: '' 

p.DialogControl has properties as follows 
Name: 'Parameter2' 
PromptLocation: 'left' 
Row: 'new' 
HorizontalStretch: 'on' 
Tooltip: '' 

[bert de Jong]

Using Matlab 2017b, a.Parameters(1) in this context returns:

 MaskParameter with properties:

           Type: 'edit'
    TypeOptions: {0×1 cell}
           Name: 'DF_NONE'
         Prompt: 'DF_NONE'
          Value: '0'
       Evaluate: 'on'
        Tunable: 'on'
      NeverSave: 'off'
         Hidden: 'off'
       ReadOnly: 'off'
        Enabled: 'on'
        Visible: 'on'
    ShowTooltip: 'on'
       Callback: ''
          Alias: ''

As you can see 'DialogControl' is missing.

[Sahithi Kanumarlapudi]

The above answer was provided using MATLAB 2019a.

Seems that such parameter is not available in MATLAB 2017b.

[bert de Jong]

Is there no workaround?

[bert de Jong]

Guess not...