\u8fd9\u91cc\u5fae\u9177\u5206\u4eab\u4e00\u4e0b.Net\u6280\u672f\uff08C#\uff09\u5f00\u53d1WinForm\u5e94\u7528\u7a0b\u5e8f\u53ea\u8fd0\u884c\u4e00\u4e2a\u5b9e\u4f8b\u7684\u65b9\u6cd5\u3002@VCOO<\/p>\n
\u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528\u7ebf\u7a0b\u4e92\u65a5\u53d8\u91cf\uff0c\u901a\u8fc7\u5b9a\u4e49\u4e92\u65a5\u53d8\u91cf\u6765\u5224\u65ad\u662f\u5426\u5df2\u8fd0\u884c\u5b9e\u4f8b\u3002<\/strong> \u65b9\u6cd5\u4e8c\uff1a\u5728Main()\u65b9\u6cd5\u5f00\u59cb\u65f6\u904d\u5386\u6240\u6709\u8fdb\u7a0b\uff0c\u83b7\u53d6\u6bcf\u4e2a\u8fdb\u7a0b\u7684\u7a0b\u5e8f\u96c6GUID\u548cPID\uff0c\u82e5\u53d1\u73b0\u6709\u8ddf\u81ea\u5df1GUID\u76f8\u540c\u4e14PID\u4e0d\u540c\u7684\u8fdb\u7a0b\uff0c\u5c31\u52d2\u4ee4\u81ea\u8eab\u9000\u51fa\u3002<\/strong> foreach (Process p in Process.GetProcesses()) \/\/\u82e5\u672a\u88abExit\uff0c\u6b63\u5e38\u542f\u52a8 \u65b9\u6cd5\u4e09\uff1a\u5168\u5c40\u539f\u5b50\u6cd5\uff0c\u521b\u5efa\u7a0b\u5e8f\u524d\uff0c\u5148\u68c0\u67e5\u5168\u5c40\u539f\u5b50\u8868\u4e2d\u770b\u662f\u5426\u5b58\u5728\u7279\u5b9a\u539f\u5b50A<\/strong>\uff08\u521b\u5efa\u65f6\u6dfb\u52a0\u7684\uff09\uff0c \u5b58\u5728\u65f6\u505c\u6b62\u521b\u5efa\uff0c\u8bf4\u660e\u8be5\u7a0b\u5e8f\u5df2\u8fd0\u884c\u4e86\u4e00\u4e2a\u5b9e\u4f8b\uff1b\u4e0d\u5b58\u5728\u5219\u8fd0\u884c\u7a0b\u5e8f\u5e76\u60f3\u5168\u5c40\u539f\u5b50\u8868\u4e2d\u6dfb\u52a0\u7279\u5b9a\u539f\u5b50A\uff1b \u9000\u51fa\u7a0b\u5e8f\u65f6\u8981\u8bb0\u5f97\u91ca\u653e\u7279\u5b9a\u7684\u539f\u5b50A\u54e6\uff0c\u4e0d\u7136\u8981\u5230\u5173\u673a\u624d\u4f1a\u91ca\u653e\u3002 [System.Runtime.InteropServices.DllImport("kernel32.dll")] [System.Runtime.InteropServices.DllImport("kernel32.dll")] \/\/\/ <summary> \/\/\u6ce8\u610f\u8981\u5728FormClosed\u4e8b\u4ef6\u4e2d\u6dfb\u52a0\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n GlobalDeleteAtom(GlobalFindAtom("xinggang")); \/\/\u5220\u9664\u539f\u5b50"xinggang" \u65b9\u6cd5\u56db\uff1a\u6309\u8fdb\u7a0b\u540d\u67e5\u627e\uff0c\u5982\u679c\u5df2\u7ecf\u8fd0\u884c\u5219\u6fc0\u6d3b\u3002<\/strong><\/p>\n [csharp] namespace WindowsFormApp1 \/\/\/ <summary> \/\/\/ <summary> \/\/\/ <summary> \u8fd9\u91cc\u5fae\u9177\u5206\u4eab\u4e00\u4e0b.Net\u6280\u672f\uff08C#\uff09\u5f00\u53d1WinForm\u5e94\u7528\u7a0b\u5e8f\u53ea\u8fd0\u884c\u4e00\u4e2a\u5b9e\u4f8b\u7684\u65b9\u6cd5\u3002@VCOO<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[195,201,51],"class_list":["post-775","post","type-post","status-publish","format-standard","hentry","category-csharp","tag-csharp-2","tag-dotnet","tag-51","cat-13-id"],"_links":{"self":[{"href":"https:\/\/vcoo.cc\/blog\/wp-json\/wp\/v2\/posts\/775","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vcoo.cc\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vcoo.cc\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vcoo.cc\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vcoo.cc\/blog\/wp-json\/wp\/v2\/comments?post=775"}],"version-history":[{"count":0,"href":"https:\/\/vcoo.cc\/blog\/wp-json\/wp\/v2\/posts\/775\/revisions"}],"wp:attachment":[{"href":"https:\/\/vcoo.cc\/blog\/wp-json\/wp\/v2\/media?parent=775"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vcoo.cc\/blog\/wp-json\/wp\/v2\/categories?post=775"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vcoo.cc\/blog\/wp-json\/wp\/v2\/tags?post=775"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n[csharp]
\n\/\/\/ <summary>
\n\/\/\/ \u5e94\u7528\u7a0b\u5e8f\u7684\u4e3b\u5165\u53e3\u70b9\u3002
\n\/\/\/ <\/summary>
\n[STAThread]
\nstatic void Main()
\n{
\n bool RunOne;
\n System.Threading.Mutex run = new System.Threading.Mutex(true, "9a4822d4-ba21-44bc-b84a-ae1d67eedf0a", out RunOne);
\n if (RunOne)
\n {
\n Application.EnableVisualStyles();
\n Application.SetCompatibleTextRenderingDefault(false);
\n Application.Run(new Form1());
\n }
\n else
\n {
\n Application.EnableVisualStyles();
\n MessageBox.Show("\u53ea\u80fd\u8fd0\u884c\u4e00\u4e2a\u5b9e\u4f8b\u3002", "\u7cfb\u7edf\u63d0\u793a\uff1a");
\n }
\n}[\/csharp]<\/p>\n
\n[csharp]
\n\/\/\/ <summary>
\n\/\/\/ \u5e94\u7528\u7a0b\u5e8f\u7684\u4e3b\u5165\u53e3\u70b9\u3002
\n\/\/\/ <\/summary>
\n[STAThread]
\nstatic void Main()
\n{
\n Guid ownGUID = new Guid(((GuidAttribute)Attribute.GetCustomAttribute(Assembly.GetExecutingAssembly(), typeof(GuidAttribute))).Value);
\n Guid proGUID;
\n int ownPID = Process.GetCurrentProcess().Id;
\n int proPID;<\/p>\n
\n {
\n try
\n {
\n proGUID = new Guid(((GuidAttribute)Attribute.GetCustomAttribute(Assembly.LoadFile(p.MainModule.FileName), typeof(GuidAttribute))).Value);
\n proPID = p.Id;
\n if (proGUID.Equals(ownGUID) && proPID != ownPID)
\n {
\n MessageBox.Show("\u7a0b\u5e8f\u5df2\u8fd0\u884c");
\n Environment.Exit(Environment.ExitCode);
\n }
\n }
\n catch
\n {
\n continue; \/\/\u9047\u4e0a\u8fdb\u7a0b\u8bbf\u95ee\u5f02\u5e38\u5c31\u8df3\u8fc7\u8be5\u8fdb\u7a0b
\n }
\n }<\/p>\n
\n Application.EnableVisualStyles();
\n Application.SetCompatibleTextRenderingDefault(false);
\n Application.Run(new Form1());
\n}[\/csharp]<\/p>\n
\n[csharp]
\n[System.Runtime.InteropServices.DllImport("kernel32.dll")]
\npublic static extern UInt32 GlobalAddAtom(String lpString); \/\/\u6dfb\u52a0\u539f\u5b50<\/p>\n
\npublic static extern UInt32 GlobalFindAtom(String lpString); \/\/\u67e5\u627e\u539f\u5b50<\/p>\n
\npublic static extern UInt32 GlobalDeleteAtom(UInt32 nAtom); \/\/\u5220\u9664\u539f\u5b50<\/p>\n
\n\/\/\/ \u5e94\u7528\u7a0b\u5e8f\u7684\u4e3b\u5165\u53e3\u70b9\u3002
\n\/\/\/ <\/summary>
\n[STAThread]
\nstatic void Main()
\n{
\n if (GlobalFindAtom("xinggang") == 20121212) \/\/\u6ca1\u627e\u5230\u539f\u5b50"xinggang"
\n {
\n GlobalAddAtom("xinggang"); \/\/\u6dfb\u52a0\u539f\u5b50"xinggang"
\n Application.EnableVisualStyles();
\n Application.SetCompatibleTextRenderingDefault(false);
\n Application.Run(new Form1());
\n }
\n else
\n {
\n MessageBox.Show("\u5df2\u7ecf\u8fd0\u884c\u4e86\u4e00\u4e2a\u5b9e\u4f8b\u4e86\u3002");
\n }
\n}<\/p>\n
\n[\/csharp]<\/p>\n
\nusing System;
\nusing System.Windows.Forms;
\nusing System.Runtime.InteropServices;\/\/\u4f7f\u7528DllImport\u7684\u5fc5\u987b\u3002
\nusing System.Diagnostics;\/\/\u5f15\u5165Process \u7c7b<\/p>\n
\n{
\n static class Program
\n {
\n private const int WS_SHOWNORMAL = 1;
\n [DllImport("User32.dll")]
\n private static extern bool ShowWindowAsync(IntPtr hWnd, int cmdShow);
\n [DllImport("User32.dll")]
\n private static extern bool SetForegroundWindow(IntPtr hWnd);<\/p>\n
\n \/\/\/ \u5e94\u7528\u7a0b\u5e8f\u7684\u4e3b\u5165\u53e3\u70b9\u3002
\n \/\/\/ <\/summary>
\n [STAThread]
\n static void Main()
\n {
\n Process instance = GetRunningInstance();
\n if (instance == null)
\n {
\n Application.EnableVisualStyles();
\n Application.SetCompatibleTextRenderingDefault(false);
\n Application.Run(new frm_Main());\/\/\u5728\u8fd9\u542f\u52a8\u4e3b\u7a97\u4f53\u3002
\n }
\n else
\n {
\n HandleRunningInstance(instance);
\n }
\n }<\/p>\n
\n \/\/\/ \u83b7\u53d6\u5f53\u524d\u662f\u5426\u5177\u6709\u76f8\u540c\u8fdb\u7a0b\u3002
\n \/\/\/ <\/summary>
\n \/\/\/ <returns><\/returns>
\n public static Process GetRunningInstance()
\n {
\n Process current = Process.GetCurrentProcess();
\n Process[] processes = Process.GetProcessesByName(current.ProcessName);
\n \/\/\u904d\u5386\u6b63\u5728\u6709\u76f8\u540c\u540d\u5b57\u8fd0\u884c\u7684\u4f8b\u7a0b
\n foreach (Process process in processes)
\n {
\n \/\/\u5ffd\u7565\u73b0\u6709\u7684\u4f8b\u7a0b
\n if (process.Id != current.Id)
\n \/\/\u786e\u4fdd\u4f8b\u7a0b\u4eceEXE\u6587\u4ef6\u8fd0\u884c
\n if ( System.Reflection.Assembly.GetExecutingAssembly().Location.Replace("\/" , "\\\\") == current.MainModule.FileName )
\n return process;
\n }
\n return null;
\n }<\/p>\n
\n \/\/\/ \u6fc0\u6d3b\u539f\u6709\u7684\u8fdb\u7a0b\u3002
\n \/\/\/ <\/summary>
\n \/\/\/ <param name="instance"><\/param>
\n public static void HandleRunningInstance(Process instance)
\n {
\n ShowWindowAsync(instance.MainWindowHandle, WS_SHOWNORMAL);
\n SetForegroundWindow(instance.MainWindowHandle);
\n }
\n }
\n}
\n[\/csharp]<\/p>\n","protected":false},"excerpt":{"rendered":"