C++ MessageBox()

關於MessageBox function，參考：https://msdn.microsoft.com/en-us/library/ms645505(VS.85).aspx

更多示例，參考Using Dialog Boxes（https://msdn.microsoft.com/en-us/library/ms644996(v=vs.85).aspx#message_box）

 

 

IDE: Code::Blocks 16.01

操作系統：Windows 7 x64

#include <windows.h>
#include <tchar.h>

/* In the following example, the application displays a message box
   that prompts the user for an action after an error condition has occurred.
   The message box displays the message that describes the error condition
   and how to resolve it.
   The MB_YESNO style directs MessageBox to provide two buttons
   with which the user can choose how to proceed : */
int DisplayConfirmSaveAsMessageBox()
{
    int msgboxID = MessageBox(
        NULL,
        "temp.txt already exists.\nDo you want to replace it?",
        "Confirm Save As",
        MB_ICONEXCLAMATION | MB_YESNO
    );

    if (msgboxID == IDYES)
    {
        // TODO: add code
    }

    return msgboxID;
}

int _cdecl _tmain()
{
    DisplayConfirmSaveAsMessageBox();

    return 0;
}

 

在Code::Blocks 16.01中的運行結果：

 

 

IDE: Microsoft Visual Studio Community 2017 15.5.2

操作系統：Windows 7 x64

#include "stdafx.h"

#include <windows.h>

/* In the following example, the application displays a message box 
   that prompts the user for an action after an error condition has occurred.
   The message box displays the message that describes the error condition 
   and how to resolve it.
   The MB_YESNO style directs MessageBox to provide two buttons 
   with which the user can choose how to proceed : */
int DisplayConfirmSaveAsMessageBox()
{
    int msgboxID = MessageBox(
        NULL,
        L"temp.txt already exists.\nDo you want to replace it?",
        L"Confirm Save As",
        MB_ICONEXCLAMATION | MB_YESNO
    );

    if (msgboxID == IDYES)
    {
        // TODO: add code
    }

    return msgboxID;
}

int _cdecl _tmain()
{
    DisplayConfirmSaveAsMessageBox();

    return 0;
}

 

在Microsoft Visual Studio Community 2017 15.5.2中的運行結果：

 

---

 

 

 關於MessageBox()的參數：

第一個，不太理解。

第二個，指定要顯示的文本信息。

第三個，指定消息框的標題。

第四個，指定圖標，及按鍵等等。