在线时间:8:00-16:00
迪恩网络APP
随时随地掌握行业动态
扫描二维码
关注迪恩网络微信公众号
添加引用
using System.Reflection;
调用DLL文件using System.Runtime.InteropServices; using System.Diagnostics;
[DllImport("User32.dll")]
添加如下两个函数private static extern bool ShowWindowAsync(IntPtr hWnd, int cmdShow); [DllImport("User32.dll")] private static extern bool SetForegroundWindow(IntPtr hWnd); private const int WS_SHOWNORMAL = 1;
public static Process RunningInstance()
{ Process current = Process.GetCurrentProcess(); Process[] processes = Process.GetProcessesByName(current.ProcessName); //Loop through the running processes in with the same name foreach (Process process in processes) { //Ignore the current process if (process.Id != current.Id) { //Make sure that the process is running from the exe file. if (Assembly.GetExecutingAssembly().Location.Replace("/", "\\") == current.MainModule.FileName) { //Return the other process instance. return process; } } } //No other instance was found, return null. return null; } public static void HandleRunningInstance(Process instance) { //Make sure the window is not minimized or maximized ShowWindowAsync(instance.MainWindowHandle, WS_SHOWNORMAL); //Set the real intance to foreground window SetForegroundWindow(instance.MainWindowHandle); } 在MAIN中添加如下代码
public static void Main()
{ Process instance = RunningInstance(); if (instance == null) { Application.Run(new Form1()); } else { HandleRunningInstance(instance); } } |
2023-10-27
2022-08-15
2022-08-17
2022-09-23
2022-08-13
请发表评论