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Allow only one instance of the game to be open. Fixed Alt-Tabbing
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,32 +1,92 @@ | ||
| using CefSharp; | ||
| using CefSharp.DevTools.Overlay; | ||
| using LittleWarGameClient.Properties; | ||
| using Loyc.Syntax; | ||
| using System.Collections.Generic; | ||
| using System.Diagnostics; | ||
| using System.Drawing.Text; | ||
| using System.Reflection; | ||
| using System.Runtime.CompilerServices; | ||
| using System.Runtime.InteropServices; | ||
| using System.Text; | ||
|
|
||
| namespace LittleWarGameClient | ||
| { | ||
| internal static class Program | ||
| { | ||
| [DllImport("user32.dll")] | ||
| [return: MarshalAs(UnmanagedType.Bool)] | ||
| static extern bool SetForegroundWindow(IntPtr hWnd); | ||
| [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)] | ||
| static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount); | ||
|
|
||
| [DllImport("User32.dll")] | ||
| [return: MarshalAs(UnmanagedType.Bool)] | ||
| private static extern bool EnumWindows(CallBackPtr lpEnumFunc, IntPtr lParam); | ||
|
|
||
| private delegate bool CallBackPtr(IntPtr hwnd, int lParam); | ||
|
|
||
| private static CallBackPtr callBackPtr = Callback; | ||
| private static List<WinStruct> _WinStructList = new List<WinStruct>(); | ||
|
|
||
| internal static FontFamily? LWG_FONT; | ||
| /// <summary> | ||
| /// The main entry point for the application. | ||
| /// </summary> | ||
| [STAThread] | ||
| static void Main() | ||
| { | ||
| // To customize application configuration such as set high DPI settings or default font, | ||
| // see https://aka.ms/applicationconfiguration. | ||
| ApplicationConfiguration.Initialize(); | ||
| string font_filename = "lwgFont.ttf"; | ||
| if (!File.Exists(font_filename)) | ||
| File.WriteAllBytes(font_filename, Resources.LcdSolidFont); | ||
| PrivateFontCollection pfc = new PrivateFontCollection(); | ||
| pfc.AddFontFile(font_filename); | ||
| LWG_FONT = pfc.Families[0]; | ||
| Application.Run(OverlayForm.Instance); | ||
| bool createdNew = true; | ||
| using (Mutex mutex = new Mutex(true, "Global\\LittleWarGameClient", out createdNew)) | ||
| { | ||
| if (createdNew) | ||
| { | ||
| // To customize application configuration such as set high DPI settings or default font, | ||
| // see https://aka.ms/applicationconfiguration. | ||
| ApplicationConfiguration.Initialize(); | ||
| string font_filename = "lwgFont.ttf"; | ||
| if (!File.Exists(font_filename)) | ||
| File.WriteAllBytes(font_filename, Resources.LcdSolidFont); | ||
| PrivateFontCollection pfc = new PrivateFontCollection(); | ||
| pfc.AddFontFile(font_filename); | ||
| LWG_FONT = pfc.Families[0]; | ||
| Application.Run(OverlayForm.Instance); | ||
| } | ||
| else | ||
| { | ||
| Process current = Process.GetCurrentProcess(); | ||
| foreach (Process process in Process.GetProcessesByName(current.ProcessName)) | ||
| { | ||
| if (process.Id != current.Id) | ||
| { | ||
| var clientMainWindow = GetWindows(process.Handle).Where(window => window.WinTitle == "Littlewargame").First(); | ||
| SetForegroundWindow(clientMainWindow.MainWindowHandle); | ||
| break; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private static bool Callback(IntPtr hWnd, int lparam) | ||
| { | ||
| StringBuilder sb = new StringBuilder(256); | ||
| int res = GetWindowText(hWnd, sb, 256); | ||
| _WinStructList.Add(new WinStruct { MainWindowHandle = hWnd, WinTitle = sb.ToString() }); | ||
| return true; | ||
| } | ||
|
|
||
| private static List<WinStruct> GetWindows(IntPtr pHandle) | ||
| { | ||
| _WinStructList = new List<WinStruct>(); | ||
| EnumWindows(callBackPtr, pHandle); | ||
| return _WinStructList; | ||
| } | ||
| } | ||
|
|
||
| internal struct WinStruct | ||
| { | ||
| internal string? WinTitle; | ||
| internal IntPtr MainWindowHandle; | ||
| } | ||
| } |