using Microsoft.Win32;
using System;
using System.Runtime.InteropServices;
namespace Common.system
{
///
/// 释放内存帮助类 创建人:赵耀 创建时间:2020年8月12日
///
public class FreeMemoryHelper
{
[DllImport("kernel32.dll")]
private static extern bool SetProcessWorkingSetSize(IntPtr proc, int min, int max);
///
/// Close、Hide、最小化页面时调用此方法,释放占用内存并重新分配 将暂时不需要的内容放进虚拟内存,当应用程序重新激活时,会将虚拟内存的内容重新加载到内存。
/// 不宜过度频繁的调用该方法,频繁调用会降低使使用性能。 创建人:赵耀 创建时间:2020年8月12日
///
public static void ReallocateMemory()
{
GC.Collect();
GC.WaitForPendingFinalizers();
if (Environment.OSVersion.Platform == PlatformID.Win32NT)
{
SetProcessWorkingSetSize(System.Diagnostics.Process.GetCurrentProcess().Handle, -1, -1);
}
}
///
/// ---屏蔽DevExpress试用信息 与内存释放无关
///
public static void SetDate()
{
CreateKey();
RegistryKey currentUser = Registry.CurrentUser;
RegistryKey registryKey = currentUser.OpenSubKey("SOFTWARE\\DevExpress\\Components", writable: true);
registryKey.GetValue("LastAboutShowedTime");
string value = DateTime.Now.ToString("MM/dd/yyyy HH:mm:ss");
registryKey.SetValue("LastAboutShowedTime", value);
currentUser.Dispose();
}
// 摘要: 创建键值
private static void CreateKey()
{
RegistryKey currentUser = Registry.CurrentUser;
if (currentUser.OpenSubKey("SOFTWARE\\DevExpress\\Components", writable: true) == null)
{
RegistryKey registryKey = currentUser.CreateSubKey("SOFTWARE\\DevExpress\\Components");
registryKey.CreateSubKey("LastAboutShowedTime").SetValue("LastAboutShowedTime", DateTime.Now.ToString("MM/dd/yyyy HH:mm:ss"));
registryKey.CreateSubKey("DisableSmartTag").SetValue("LastAboutShowedTime", false);
registryKey.CreateSubKey("SmartTagWidth").SetValue("LastAboutShowedTime", 350);
}
currentUser.Dispose();
}
}
}