Initial
This commit is contained in:
Manuel Kamper
parent
806d17f954
commit
bb1282e066
25
Mk0.Tools.SingleInstance.sln
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25
Mk0.Tools.SingleInstance.sln
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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio 15
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VisualStudioVersion = 15.0.28307.438
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Mk0.Tools.SingleInstance", "Mk0.Tools.SingleInstance\Mk0.Tools.SingleInstance.csproj", "{EE314A04-04C0-4FFB-999C-893F61EC59BD}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{EE314A04-04C0-4FFB-999C-893F61EC59BD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{EE314A04-04C0-4FFB-999C-893F61EC59BD}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{EE314A04-04C0-4FFB-999C-893F61EC59BD}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{EE314A04-04C0-4FFB-999C-893F61EC59BD}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {ACE43D6F-6DD1-4695-9A29-F0316CDFE039}
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EndGlobalSection
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EndGlobal
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43
Mk0.Tools.SingleInstance/Mk0.Tools.SingleInstance.csproj
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Mk0.Tools.SingleInstance/Mk0.Tools.SingleInstance.csproj
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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
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<PropertyGroup>
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
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<ProjectGuid>{EE314A04-04C0-4FFB-999C-893F61EC59BD}</ProjectGuid>
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<OutputType>Library</OutputType>
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<AppDesignerFolder>Properties</AppDesignerFolder>
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<RootNamespace>Mk0.Tools.SingleInstance</RootNamespace>
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<AssemblyName>Mk0.Tools.SingleInstance</AssemblyName>
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<TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
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<FileAlignment>512</FileAlignment>
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<Deterministic>true</Deterministic>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
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<DebugSymbols>true</DebugSymbols>
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<DebugType>full</DebugType>
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<Optimize>false</Optimize>
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<OutputPath>bin\Debug\</OutputPath>
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<DefineConstants>DEBUG;TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
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<DebugType>pdbonly</DebugType>
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<Optimize>true</Optimize>
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<OutputPath>bin\Release\</OutputPath>
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<DefineConstants>TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="System" />
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<Reference Include="System.Windows.Forms" />
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<Reference Include="Microsoft.CSharp" />
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</ItemGroup>
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<ItemGroup>
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<Compile Include="SingleApplication.cs" />
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<Compile Include="Properties\AssemblyInfo.cs" />
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</ItemGroup>
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
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</Project>
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36
Mk0.Tools.SingleInstance/Properties/AssemblyInfo.cs
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Mk0.Tools.SingleInstance/Properties/AssemblyInfo.cs
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using System.Reflection;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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// Allgemeine Informationen über eine Assembly werden über die folgenden
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// Attribute gesteuert. Ändern Sie diese Attributwerte, um die Informationen zu ändern,
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// die einer Assembly zugeordnet sind.
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[assembly: AssemblyTitle("Mk0.Tools.SingleInstance")]
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[assembly: AssemblyDescription("")]
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[assembly: AssemblyConfiguration("")]
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[assembly: AssemblyCompany("")]
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[assembly: AssemblyProduct("Mk0.Tools.SingleInstance")]
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[assembly: AssemblyCopyright("Copyright © 2019 mk0.at")]
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[assembly: AssemblyTrademark("")]
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[assembly: AssemblyCulture("")]
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// Durch Festlegen von ComVisible auf FALSE werden die Typen in dieser Assembly
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// für COM-Komponenten unsichtbar. Wenn Sie auf einen Typ in dieser Assembly von
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// COM aus zugreifen müssen, sollten Sie das ComVisible-Attribut für diesen Typ auf "True" festlegen.
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[assembly: ComVisible(false)]
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// Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird
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[assembly: Guid("ee314a04-04c0-4ffb-999c-893f61ec59bd")]
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// Versionsinformationen für eine Assembly bestehen aus den folgenden vier Werten:
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//
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// Hauptversion
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// Nebenversion
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// Buildnummer
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// Revision
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//
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// Sie können alle Werte angeben oder Standardwerte für die Build- und Revisionsnummern verwenden,
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// indem Sie "*" wie unten gezeigt eingeben:
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// [assembly: AssemblyVersion("1.0.*")]
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[assembly: AssemblyVersion("1.0.0.0")]
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[assembly: AssemblyFileVersion("1.0.0.0")]
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123
Mk0.Tools.SingleInstance/SingleApplication.cs
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123
Mk0.Tools.SingleInstance/SingleApplication.cs
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using System;
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using System.Windows.Forms;
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using System.Runtime.InteropServices;
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using System.Diagnostics;
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using System.Threading;
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using System.Reflection;
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using System.IO;
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namespace Mk0.Tools.SingleInstance
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{
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/// <summary>
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/// Summary description for SingleApp.
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/// </summary>
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public class SingleApplication
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{
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public SingleApplication()
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{
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}
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/// <summary>
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/// Imports
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/// </summary>
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[DllImport("user32.dll")]
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private static extern int ShowWindow(IntPtr hWnd, int nCmdShow);
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[DllImport("user32.dll")]
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private static extern int SetForegroundWindow(IntPtr hWnd);
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[DllImport("user32.dll")]
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private static extern int IsIconic(IntPtr hWnd);
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/// <summary>
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/// GetCurrentInstanceWindowHandle
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/// </summary>
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/// <returns></returns>
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private static IntPtr GetCurrentInstanceWindowHandle()
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{
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IntPtr hWnd = IntPtr.Zero;
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Process process = Process.GetCurrentProcess();
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Process[] processes = Process.GetProcessesByName(process.ProcessName);
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foreach (Process _process in processes)
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{
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if (_process.Id != process.Id &&
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_process.MainModule.FileName == process.MainModule.FileName &&
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_process.MainWindowHandle != IntPtr.Zero)
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{
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hWnd = _process.MainWindowHandle;
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break;
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}
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}
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return hWnd;
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}
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/// <summary>
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/// SwitchToCurrentInstance
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/// </summary>
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private static void SwitchToCurrentInstance()
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{
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IntPtr hWnd = GetCurrentInstanceWindowHandle();
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if (hWnd != IntPtr.Zero)
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{
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if (IsIconic(hWnd) != 0)
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{
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ShowWindow(hWnd, SW_RESTORE);
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}
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SetForegroundWindow(hWnd);
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}
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}
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/// <summary>
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/// Execute a form base application if another instance already running on
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/// the system activate previous one
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/// </summary>
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/// <param name="frmMain">main form</param>
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/// <param name="appSetting">your app can set if single instance (true) or multi instance (false)</param>
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/// <returns>true if no previous instance is running</returns>
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public static bool Run(Form frmMain, bool appSetting=true)
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{
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if (IsAlreadyRunning() && appSetting)
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{
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SwitchToCurrentInstance();
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return false;
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}
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Application.Run(frmMain);
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return true;
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}
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/// <summary>
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/// for console base application
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/// </summary>
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/// <returns></returns>
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public static bool Run()
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{
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if (IsAlreadyRunning())
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{
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return false;
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}
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return true;
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}
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/// <summary>
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/// check if given exe alread running or not
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/// </summary>
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/// <returns>returns true if already running</returns>
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private static bool IsAlreadyRunning()
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{
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string strLoc = Assembly.GetExecutingAssembly().Location;
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FileSystemInfo fileInfo = new FileInfo(strLoc);
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string sExeName = fileInfo.Name;
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mutex = new Mutex(true, "Global\\" + sExeName, out bool bCreatedNew);
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if (bCreatedNew)
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{
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mutex.ReleaseMutex();
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}
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return !bCreatedNew;
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}
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static Mutex mutex;
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const int SW_RESTORE = 9;
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}
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}
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15
README.md
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README.md
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# Mk0.Tools.SingleInstance
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# Mk0.Tools.SingleInstance
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(C) 2019 mk0.at
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With this code you are able to make your application a single instance.
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Usage example:
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static void Main(string[] args)
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{
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Application.EnableVisualStyles();
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Application.SetCompatibleTextRenderingDefault(false);
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SingleApplication.Run(new MainForm(), Demo.Properties.Settings.Default.singleInstance);
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}
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MainForm is the form to show on start
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singleInstance is an optional boolean value, where you can enable/disable SingleInstance within your application settings
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