| 术语 | getprofilestring |
| 释义 | GetProfileString 语法： C++ DWORD WINAPI GetProfileString( __in LPCTSTR lpAppName, __in LPCTSTR lpKeyName, __in LPCTSTR lpDefault, __out LPTSTR lpReturnedString, __in DWORD nSize ); GetProfileString函数 检索与在Win.ini文件的指定部分重点关联的字符串。 注意：此功能仅提供了兼容性与16位Windows的应用程序，因此这个函数不应该调用服务器代码。应用程序应该在注册表中存储初始化信息。 参数 lpAppName [in] 在包含的主要部分的名称。如果该参数为NULL，则函数复制文件中的所有部分名称所提供的缓冲区。 lpKeyName [in] 在关键的关联的字符串的名称是要检索。如果此参数为NULL，函数在给定的副本节的所有钥匙提供的缓冲区。每个字符串后跟一个空字符，最后串是由第二个空字符。 lpDefault [in] 默认字符串。如果lpKeyName键不能找到初始化文件，GetProfileString默认字符串复制到lpReturnedString缓冲区。如果该参数为NULL，则默认值为空字符串“”。 避免与尾随指定一个空白字符的默认字符串。该函数在插入一个空字符lpReturnedString缓冲区剥夺任何尾随空格。 lpReturnedString [out] 阿一个缓冲区，它接收字符串指针。 nSize [in] 缓冲区的大小指向的lpReturnedString参数，以字符。 返回值 返回值是复制到缓冲区的字符数，不包括空终止字符。 如果没有lpAppName也不lpKeyName为NULL和目的地提供的缓冲区太小举行请求的字符串，该字符串被截断，由一个空字符后，返回值等于nSize减1。 如果任lpAppName或lpKeyName为NULL和提供的目标缓冲区太小，无法容纳所有的字符串，最后一个字符串被截断及随后两个空字符。在这种情况下，返回值等于nSize减二。 备注 如果与lpKeyName参数相关的字符串单引号或双引号，该商标将被丢弃时，GetProfileString封闭函数返回字符串。 该GetProfileString函数是不区分大小写，该字符串可以包含大写和小写字母的组合。 阿Win.ini文件中的部分必须有以下形式： [节] 关键=字符串 。 。 。 一个应用程序可以使用GetPrivateProfileString函数检索从指定字符串初始化文件。 该lpDefault参数必须指向一个有效的字符串，即使字符串为空(也就是说，即使它的第一个字符是空字符)。 Windows Server 2003和Windows XP/2000操作系统：呼吁配置功能，可被映射到注册表中，而不是到初始化文件。这个映射初始化时发生文件和节是在注册表中指定以下项下： HKEY_LOCAL_MACHINE \\软件\\微软\\视窗NT \\ CurrentVersion \\ IniFileMapping 当操作已被映射的GetProfileString函数检索信息从注册表，而不是从初始化文件，在存储位置的变化并没有对函数的行为的影响。 配置文件函数使用下列步骤定位初始化信息： 查找在为下IniFileMapping关键初始化文件的名称登记。 查询由lpAppName指定的节的名称。这将是一个命名值中具有关键的初始化文件名，或者一个子项与此名称或名称将不存在，一个值或子项。 如果区段名称由lpAppName指定一个命名值，则该值指定在注册表中您会发现，该科的钥匙。 如果区段名称由lpAppName指定一个子项，然后命名该子项下的具体值，其中，在注册表中您会发现，该科的钥匙。如果密钥您正在寻找不存在的一个命名值，就会有一个未命名的值(显示为<无名称>)，指定注册表中的默认位置，您会发现关键。 如果按lpAppName区段名称不存在指定作为一个命名值或一个子项，然后会有一个未命名的值(显示为<无名称>)，指定注册表中的默认位置，您将找到的钥匙一节。 如果没有子项或部分名称项，然后查找磁盘上的实际初始化文件并阅读其内容。 当在注册表值寻找其他指定的注册表位置，有几个前缀是改变的。ini文件映射的行为： ！ -这个人物写的所有部队都进入到注册表和。ini文件在磁盘上。 ＃ -该字符会导致注册表值被设置为在Windows 3.1的。ini文件中的价值当新用户登录的安装后的第一次。 @ -此字不允许任何人去。ini文件在磁盘上，如果请求的数据不在注册表中读取。 USR： -这个前缀代表HKEY_CURRENT_USER，文本后的前缀是相对于该键。 SYS： -这个前缀代表HKEY_LOCAL_MACHINE \\软件，文本后的前缀是相对于该键。 要求： 最低支持：client－Windows 2000专业版 最低支持server－Windows 2000服务器 HeaderWinbase.h(头文件：winuser.h) LibraryKernel32.lib DLLKernel32.dll Unicode和ANSI namesGetProfileStringW(Unicode)和GetProfileStringA(ANSI)的 参见 GetPrivateProfileString WriteProfileString 如果有任何问题和意见，请发送给微软(wsddocfb@microsoft.com) 生成日期：2009年8月27日 ＝＝英文原文＝＝GetProfileString Function Retrieves the string associated with a key in the specified section of the Win.ini file. Note This function is provided only for compatibility with 16-bit Windows-based applications, therefore this function should not be called from server code. Applications should store initialization information in the registry. Syntax C++ DWORD WINAPI GetProfileString( __in LPCTSTR lpAppName, __in LPCTSTR lpKeyName, __in LPCTSTR lpDefault, __out LPTSTR lpReturnedString, __in DWORD nSize ); Parameters lpAppName [in] The name of the section containing the key. If this parameter is NULL, the function copies all section names in the file to the supplied buffer. lpKeyName [in] The name of the key whose associated string is to be retrieved. If this parameter is NULL, the function copies all keys in the given section to the supplied buffer. Each string is followed by a null character, and the final string is followed by a second null character. lpDefault [in] A default string. If the lpKeyName key cannot be found in the initialization file, GetProfileString copies the default string to the lpReturnedString buffer. If this parameter is NULL, the default is an empty string, "". Avoid specifying a default string with trailing blank characters. The function inserts a null character in the lpReturnedString buffer to strip any trailing blanks. lpReturnedString [out] A pointer to a buffer that receives the character string. nSize [in] The size of the buffer pointed to by the lpReturnedString parameter, in characters. Return Value The return value is the number of characters copied to the buffer, not including the null-terminating character. If neither lpAppName nor lpKeyName is NULL and the supplied destination buffer is too small to hold the requested string, the string is truncated and followed by a null character, and the return value is equal to nSize minus one. If either lpAppName or lpKeyName is NULL and the supplied destination buffer is too small to hold all the strings, the last string is truncated and followed by two null characters. In this case, the return value is equal to nSize minus two. Remarks If the string associated with the lpKeyName parameter is enclosed in single or double quotation marks, the marks are discarded when the GetProfileString function returns the string. The GetProfileString function is not case-sensitive; the strings can contain a combination of uppercase and lowercase letters. A section in the Win.ini file must have the following form: [section] key=string . . . An application can use the GetPrivateProfileString function to retrieve a string from a specified initialization file. The lpDefault parameter must point to a valid string, even if the string is empty (that is, even if its first character is a null character). Windows Server 2003 and Windows XP/2000: Calls to profile functions may be mapped to the registry instead of to the initialization files. This mapping occurs when the initialization file and section are specified in the registry under the following keys: HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows NT\\CurrentVersion\\IniFileMapping When the operation has been mapped, the GetProfileString function retrieves information from the registry, not from the initialization file; the change in the storage location has no effect on the function's behavior. The profile functions use the following steps to locate initialization information: Look in the registry for the name of the initialization file under the IniFileMapping key. Look for the section name specified by lpAppName. This will be a named value under the key that has the name of the initialization file, or a subkey with this name, or the name will not exist as either a value or subkey. If the section name specified by lpAppName is a named value, then that value specifies where in the registry you will find the keys for the section. If the section name specified by lpAppName is a subkey, then named values under that subkey specify where in the registry you will find the keys for the section. If the key you are looking for does not exist as a named value, then there will be an unnamed value (shown as If the section name specified by lpAppName does not exist as a named value or as a subkey, then there will be an unnamed value (shown as If there is no subkey or entry for the section name, then look for the actual initialization file on the disk and read its contents. When looking at values in the registry that specify other registry locations, there are several prefixes that change the behavior of the .ini file mapping: ! - this character forces all writes to go both to the registry and to the .ini file on disk. # - this character causes the registry value to be set to the value in the Windows 3.1 .ini file when a new user logs in for the first time after setup. @ - this character prevents any reads from going to the .ini file on disk if the requested data is not found in the registry. USR: - this prefix stands for HKEY_CURRENT_USER, and the text after the prefix is relative to that key. SYS: - this prefix stands for HKEY_LOCAL_MACHINE\\SOFTWARE, and the text after the prefix is relative to that key. Requirements Minimum supported clientWindows 2000 Professional Minimum supported serverWindows 2000 Server HeaderWinbase.h (include Windows.h) LibraryKernel32.lib DLLKernel32.dll Unicode and ANSI namesGetProfileStringW (Unicode) and GetProfileStringA (ANSI) See Also GetPrivateProfileString WriteProfileString Send comments about this topic to Microsoft Build date: 8/27/2009 ＝＝原始网址＝＝http://msdn.microsoft.com/en-us/library/ms724366(VS.85).aspx\n |
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