Wince MessageBox的用法

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#wince #dialog #null #string #behavior #button

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本文详细介绍了Windows API中的MessageBox函数，包括其函数原型、各参数的作用及使用方法。通过对hWnd、lpText、lpCaption和uType等参数的解析，帮助读者更好地理解和应用此函数。

1. 函数原型

int MessageBox(
HWND hWnd, 
LPCTSTR lpText, 
LPCTSTR lpCaption, 
UINT uType);

2.参数说明

hWnd [in] Handle to the owner window of the message box to be created. If this parameter is NULL, the message box has no owner window.
创建MessageBox的窗口的句柄，如果该参数为NULL，则该MessageBox不为任何窗口所拥有。lpText [in] Long pointer to a null-terminated string that contains the message to be displayed.
MessageBox要显示的内容。是一个指针，指向一个字符串。
lpCaption [in] Long pointer to a null-terminated string used for the dialog box title. If this parameter is NULL, the default title Error is used.
MessageBox窗口的标题，如果该参数为NULL，默认的标题是Error。是一个指针，指向一个字符串。
uType [in] Specifies a set of bit flags that determine the contents and behavior of the dialog box. This parameter can be a combination of flags from the following groups of flags. Specify one of the following flags to indicate the buttons contained in the message box:
该参数确定MessageBox窗口的类型。该参数的取值有：
Value Description
MB_ABORTRETRYIGNORE The message box contains three push buttons: Abort, Retry, and Ignore.
MB_OK The message box contains one push button: OK. This is the default.
MB_OKCANCEL The message box contains two push buttons: OK and Cancel.
MB_RETRYCANCEL The message box contains two push buttons: Retry and Cancel.
MB_YESNO The message box contains two push buttons: Yes and No.
MB_YESNOCANCEL The message box contains three push buttons: Yes, No, and Cancel.

Value	Description
MB_ABORTRETRYIGNORE	The message box contains three push buttons: Abort, Retry, and Ignore.
MB_OK	The message box contains one push button: OK. This is the default.
MB_OKCANCEL	The message box contains two push buttons: OK and Cancel.
MB_RETRYCANCEL	The message box contains two push buttons: Retry and Cancel.
MB_YESNO	The message box contains two push buttons: Yes and No.
MB_YESNOCANCEL	The message box contains three push buttons: Yes, No, and Cancel.