Question

Give syntax of message box API.

Answer 1

Displays a modal dialog box that contains a system icon, a set of buttons, and a brief application-specific message, such as status or error information. The message box returns an integer value that indicates which button the user clicked.

Syntax

C++

Copy

int MessageBox(

HWND hWnd,

LPCTSTR lpText,

LPCTSTR lpCaption,

UINT uType

);

Parameters

hWnd

Type: HWND

A handle to the owner window of the message box to be created. If this parameter is NULL, the message box has no owner window.

lpText

Type: LPCTSTR

The message to be displayed. If the string consists of more than one line, you can separate the lines using a carriage return and/or linefeed character between each line.

lpCaption

Type: LPCTSTR

The dialog box title. If this parameter is NULL, the default title is Error.

uType

Type: UINT

The contents and behavior of the dialog box. This parameter can be a combination of flags from the following groups of flags.

To indicate the buttons displayed in the message box, specify one of the following values.