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Reference guides are available for functions and commands supported by OML, Tcl, and Python.
Reference Guide for OpenMatrix Language Functions
The Reference Guide contains documentation for all functions supported in the OpenMatrix language.
GUI Commands
errordlg
Shows a dialog box with the error s.

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Reference guides are available for functions and commands supported by OML, Tcl, and Python.
- Scripting Guide for OpenMatrix Language
  OpenMatrix is a mathematical scripting language.
- Reference Guide for OpenMatrix Language Functions
  The Reference Guide contains documentation for all functions supported in the OpenMatrix language.
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    - edit
      Opens the file, filename, in the Compose text editor. edit is only available in the Compose GUI.
    - errordlg
      Shows a dialog box with the error s.
    - inputdlg
      Shows a dialog box with label(s), s for text field(s) that require user input.
    - listdlg
      Shows a dialog box with a list of strings which the user can pick. This command is only available in the GUI.
    - msgbox
      Shows a dialog box with the message s.
    - questdlg
      Shows a dialog box with a question s. By default, the dialog displayed will have the 'Yes', 'No' and 'Cancel' buttons.
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      Displays a directory selection dialog.
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      Displays a dialog for selecting existing file(s). Multiple files can be selected using the Ctrl key.
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      Displays a file selection dialog.
    - warndlg
      Shows a dialog box with the warning s.
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Get help for the optional libraries that are available in the Extension Manager.
Frequently Asked Questions
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errordlg

Shows a dialog box with the error s.

Syntax

errordlg(s)

R = errordlg(s, c)

R = errordlg(s, c, dummyarg)

Inputs

s: Content to display in the dialog. String inputs can have the '\n' newline character, which are displayed on separate lines of the dialog. String elements of cell inputs will be displayed on new lines in the dialog.; Type: string | cell
c (optional): Specifies the caption to be displayed for the dialog. If no caption is specified, the caption displayed will be 'Error'.; Type: string
dummyarg (optional): Dummy argument for compatibility with legacy scripts.

Outputs

R: Type: integer

Examples

String input:

R = errordlg('This is an error!!!')
        
R = 1
Content displayed in the dialog is 'This is an error!!!'

String input with a newline and caption:

R = errordlg('Error line 1\nError line 2', 'My Error')

R = 1
Content displayed in the dialog with caption 'My Error' is
'Error line 1'
'Error line 1'

Cell input:

R = errordlg({'This', ' is', ' an', ' error!!!'})

R = 1
Content displayed in the dialog is 'This is an error!!!'