获取系统配置信息

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以下示例使用GetComputerNameGetUserNameGetSystemDirectoryGetWindowsDirectoryExpandEnvironmentStrings功能来获取有关系统配置的信息。此示例在窗口的客户区显示信息。

LPTSTR lpszSystemInfo; //指向系统信息字符串的指针

DWORD cchBuff = 256; //计算机或用户名的大小

TCHAR tchBuffer2[BUFFER]; //用于连接字符串的缓冲区

DWORD dwResult; //函数返回值

SYSTEM_INFO siSysInfo; //硬件信息的结构

int aTabs[1] = {260}; // Tab停止TabbedTextOut

TCHAR tchBuffer[BUFFER]; //用于扩展字符串的缓冲区

int nSize; //字符串大小

lpszSystemInfo = tchBuffer2;

//获取并显示计算机的名称。

GetComputerName(lpszSystemInfo, &cchBuff);

nSize = sprintf(tchBuffer, "Computer name: %s",

lpszSystemInfo);

TextOut(hdc, 15, 20, tchBuffer, nSize);

//获取并显示用户名。

GetUserName(lpszSystemInfo, &cchBuff);

nSize = sprintf(tchBuffer, "User name: %s",

lpszSystemInfo);

TextOut(hdc, 15, 40, tchBuffer, nSize);

//获取并显示系统目录。

nSize = GetSystemDirectory(lpszSystemInfo, MAX_PATH);

nSize = sprintf(tchBuffer, "System directory: %s",

lpszSystemInfo);

TextOut(hdc, 15, 60, tchBuffer, nSize);

//获取并显示Windows目录。

nSize = GetWindowsDirectory(lpszSystemInfo, MAX_PATH);

nSize = sprintf(tchBuffer, "Windows directory: %s",

lpszSystemInfo);

TextOut(hdc, 15, 80, tchBuffer, nSize);

//显示“环境变量”头。

nSize = sprintf(tchBuffer,

"Environment variables (partial list):");

TextOut(hdc, 15, 105, tchBuffer, nSize);

//展开OS和NTVERSION环境变量。

dwResult = ExpandEnvironmentStrings(

"OS=%OS% NTVERSION=%NTVERSION%",

lpszSystemInfo,

BUFFER);

TextOut(hdc,25,120,(LPCTSTR)lpszSystemInfo,

dwResult - 1);

//展开PATH环境变量。

dwResult = ExpandEnvironmentStrings(

"PATH=%PATH%",

lpszSystemInfo,

BUFFER);

TextOut(hdc,25,135,(LPCTSTR)lpszSystemInfo,

dwResult - 1);

//展开LIBPATH环境变量。

dwResult = ExpandEnvironmentStrings(

"LIBPATH=%LIBPATH%",

lpszSystemInfo,

BUFFER);

TextOut(hdc,25,150,(LPCTSTR)lpszSystemInfo,

dwResult - 1);

//展开TMP环境变量。

dwResult = ExpandEnvironmentStrings(

"TMP=%TMP%",

lpszSystemInfo,

BUFFER);

TextOut(hdc,25,165,(LPCTSTR)lpszSystemInfo,

dwResult - 1);