我正在使用GlobalMemoryStatusEx函数来检索有关内存的信息,但是此功能无法正常工作.它为所有属性返回0.我不认为这个功能在我的
Windows 7环境中有效.
[StructLayout(LayoutKind.Sequential)]
internal struct MEMORYSTATUSEX
{
internal uint dwLength;
internal uint dwMemoryLoad;
internal ulong ullTotalPhys;
internal ulong ullAvailPhys;
internal ulong ullTotalPageFile;
internal ulong ullAvailPageFile;
internal ulong ullTotalVirtual;
internal ulong ullAvailVirtual;
internal ulong ullAvailExtendedVirtual;
}
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("Kernel32.dll",CharSet = CharSet.Auto,SetLastError = true)]
internal static extern bool GlobalMemoryStatusEx(ref MEMORYSTATUSEX lpBuffer);
private void btnGlobalMemoryStatusEX_Click(object sender,EventArgs e)
{
MEMORYSTATUSEX statEX = new MEMORYSTATUSEX();
GlobalMemoryStatusEx(ref statEX);
double d = (double)statEX.ullTotalPhys;
}
解决方法
我发现我的错误：
http://www.pinvoke.net/default.aspx/kernel32/GlobalMemoryStatusEx.html
http://www.pinvoke.net/default.aspx/kernel32/GlobalMemoryStatusEx.html
我变了
internal static extern bool GlobalMemoryStatusEx(ref MEMORYSTATUSEX lpBuffer);
至
static extern bool GlobalMemoryStatusEx([In,Out] MEMORYSTATUSEX lpBuffer);
并改变了
GlobalMemoryStatusEx(ref statEX);
至
GlobalMemoryStatusEx(statEX);
它正常工作坦克
