MATLAB Function Reference Volume 1: A - E - Bad Request

errordlg
2errordlg
Purpose Create and display an error dialog box
Syntax errordlg
errordlg('errorstring')
errordlg('errorstring','dlgname')
errordlg('errorstring','dlgname','on')
h = errordlg(...)
Description errordlg creates an error dialog box, or if the named dialog exists, errordlg
pops the named dialog in front of other windows.
2-498
errordlg displays a dialog box named 'Error Dialog' that contains the string
'This is the default error string.'
errordlg('errorstring') displays a dialog box named 'Error Dialog' that
contains the string 'errorstring'.
errordlg('errorstring','dlgname') displays a dialog box named 'dlgname'
that contains the string 'errorstring'.
errordlg('errorstring','dlgname','on') specifies whether to replace an
existing dialog box having the same name. 'on' brings an existing error dialog
having the same name to the foreground. In this case, errordlg does not create
a new dialog.
h = errordlg(...) returns the handle of the dialog box.
Remarks MATLAB sizes the dialog box to fit the string 'errorstring'. The error dialog
box has an OK pushbutton and remains on the screen until you press the OK
button or the Return key. After pressing the button, the error dialog box
disappears.
Examples The function
The appearance of the dialog box depends on the windowing system you use.
errordlg('File not found','File Error');