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# MsgBox Statement

顯示一個包含訊息的對話方塊。

## 語法：

    MsgBox Text As String[,Type As Integer[,Dialogtitle As String]](As Statement) 或 MsgBox (Text As String[,Type As Integer[,Dialogtitle As String]]) (As Function)

## 參數：

Text：字串型表示式，即在對話方塊中顯示的訊息。使用 Chr$(13) 可以插入斷行符。

DialogTitle：對話方塊標題列中顯示的字串型表示式。如果不指定此參數，標題列將顯示相應的應用程式之名稱。

Type：任意整型表示式，用於指定對話方塊類型、要顯示的按鈕數目和類型以及圖示的類型。Type 表示位元型樣組合，也就是加入相應值而定義的元素之組合：

Named constant | Integer value | Definition
MB_OK | 0 | Display OK button only.
MB_OKCANCEL | 1 | Display OK and Cancel buttons.
MB_ABORTRETRYCANCEL | 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.

## 錯誤代碼：

5 無效的程序呼叫

## 示例：

    Sub ExampleMsgBox

     Const sText1 = "An unexpected error occured."

     Const sText2 = "The program execution will continue, however."

     Const sText3 = "Error"

     MsgBox(sText1 + Chr(13) + sText2,16,sText3)

     MsgBox(sText1 + Chr(13) + sText2, MB_ICONSTOP, sText3)

    End Sub