MATLAB: How to set the “Prompt location” property of a Simulink.MaskParameter programmatically.

prompt locationsimulink

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?
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Best Answer

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: ''
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