Справка LibreOffice 25.2
Отображает диалоговое окно, содержащее сообщение, и возвращает значение.
MsgBox (Prompt As String [,Buttons = MB_OK [,Title As String]]) As Integer
prompt: String expression displayed as a message in the dialog box. Line breaks can be inserted with Chr$(13).
title: String expression displayed in the title bar of the dialog. If omitted, the title bar displays the name of the respective application.
buttons: Any integer expression that specifies the dialog type, as well as the number and type of buttons to display, and the icon type. buttons represents a combination of bit patterns, that is, a combination of elements can be defined by adding their respective values:
| Именованная константа | Целое значение | Определение | 
|---|---|---|
| MB_OK | 0 | Отображать только кнопку ОК. | 
| MB_OKCANCEL | 1 | Отображать кнопки ОК и Отмена. | 
| MB_ABORTRETRYIGNORE | 2 | Display Abort, Retry, and Ignore buttons. | 
| MB_YESNOCANCEL | 3 | Display Yes, No, and Cancel buttons. | 
| MB_YESNO | 4 | Display Yes and No buttons. | 
| MB_RETRYCANCEL | 5 | Display Retry and Cancel buttons. | 
| MB_ICONSTOP | 16 | Add the Stop icon to the dialog. | 
| MB_ICONQUESTION | 32 | Add the Question icon to the dialog. | 
| MB_ICONEXCLAMATION | 48 | Add the Exclamation Point icon to the dialog. | 
| MB_ICONINFORMATION | 64 | Add the Information icon to the dialog. | 
| 
 | 128 | First button in the dialog as default button. | 
| MB_DEFBUTTON2 | 256 | Second button in the dialog as default button. | 
| MB_DEFBUTTON3 | 512 | Third button in the dialog as default button. | 
Integer
| Именованная константа | Целое значение | Определение | 
|---|---|---|
| IDOK | 1 | ОК | 
| IDCANCEL | 2 | Отмена | 
| IDABORT | 3 | Прервать | 
| IDRETRY | 4 | Повторить | 
| IDIGNORE | 5 | Пропускать | 
| IDYES | 6 | Да | 
| IDNO | 7 | Нет | 
Sub ExampleMsgBox
Dim sVar As Integer
 sVar = MsgBox("Калининград")
 sVar = MsgBox("Калининград",1)
 sVar = MsgBox( "Калининград",256 + 16 + 2,"Название диалогового окна")
 sVar = MsgBox("Las Vegas", MB_DEFBUTTON2 + MB_ICONSTOP + MB_ABORTRETRYIGNORE, "Dialog title")
End Sub