private void button1_Click(object sender, EventArgs e)
{
const int nChars = 128;
StringBuilder sb = new StringBuilder(nChars);
GetWindowsDirectory(sb, nChars);
WindowsDirectory.Text = "Windows 路径 ： " + sb.ToString();
GetSystemDirectory(sb, nChars);
SystemDirectory.Text = "系统路径 ： " + sb.ToString();
CPU_INFO cpuInfo = new CPU_INFO();
GetSystemInfo(ref cpuInfo);
NumberOfProcessors.Text = "本计算机中有 " + cpuInfo.dwNumberOfProcessros.ToString() + " 个CPU";
ProcessorType.Text = "CPU 的类型为" + cpuInfo.dwProcessorType.ToString();
ProcessorLevel.Text = "CPU 等级为" + cpuInfo.dwProcessorLevel.ToString();
OemId.Text = "CPU 的 OEM ID 为" + cpuInfo.dwOemId.ToString();
PageSize.Text = "CPU 中的页面大小为" + cpuInfo.dwPageSize.ToString();
MEMORY_INFO memoryInfo = new MEMORY_INFO();
GlobalMemoryStatus(ref memoryInfo);
MemoryLoad.Text = memoryInfo.dwMemoryLoad.ToString() + "% 的内存正在使用";
TotalPhys.Text = "物理内存共有" + memoryInfo.dwTotalPhys.ToString() + "字节";
AvailPhys.Text = "可使用的物理内存有" + memoryInfo.dwAvailPhys.ToString() + "字节";
TotalPageFile.Text = "交换文件总大小为" + memoryInfo.dwTotalPageFile.ToString() + "字节";
AvailPageFile.Text = "尚可交换文件大小为" + memoryInfo.dwAvailPageFile.ToString() + "字节";
TotalVirtual.Text = "总虚拟内存有" + memoryInfo.dwTotalVirtual.ToString() + "字节";
AvailVirtual.Text = "尚未使用的虚拟内存有" + memoryInfo.dwAvailVirtual.ToString() + "字节";
SYSTEMTIME_INFO timeInfo = new SYSTEMTIME_INFO();
GetSystemTime(ref timeInfo);
Date.Text = timeInfo.wYear.ToString() + "年" + timeInfo.wMonth.ToString() + "月" + timeInfo.wDay.ToString() + "日";
Time.Text = timeInfo.wHour.ToString() + "时" + timeInfo.wMinute.ToString() + "分" + timeInfo.wSecond.ToString() + "秒";
}
public static extern void GlobalMemoryStatus(ref MEMORY_INFO memoryInfo);