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Recognize new names for Xbox Console Companion #170
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.IO; | ||
| using System.Linq; | ||
| using System.Runtime.InteropServices; | ||
| using System.Text; | ||
| using System.Threading.Tasks; | ||
|
|
||
| namespace XboxKeyboardMouse | ||
| { | ||
| internal struct WINDOWINFO | ||
| { | ||
| public uint ownerpid; | ||
| public uint childpid; | ||
| } | ||
|
|
||
| public class UWPUtils | ||
| { | ||
| #region User32 | ||
| [DllImport("user32.dll")] | ||
| public static extern IntPtr GetForegroundWindow(); | ||
| [DllImport("user32.dll", SetLastError = true)] | ||
| public static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId); | ||
|
|
||
| /// <summary> | ||
| /// Delegate for the EnumChildWindows method | ||
| /// </summary> | ||
| /// <param name="hWnd">Window handle</param> | ||
| /// <param name="parameter">Caller-defined variable; we use it for a pointer to our list</param> | ||
| /// <returns>True to continue enumerating, false to bail.</returns> | ||
| public delegate bool EnumWindowProc(IntPtr hWnd, IntPtr parameter); | ||
|
|
||
| [DllImport("user32", SetLastError = true)] | ||
| [return: MarshalAs(UnmanagedType.Bool)] | ||
| public static extern bool EnumChildWindows(IntPtr hWndParent, EnumWindowProc lpEnumFunc, IntPtr lParam); | ||
| #endregion | ||
|
|
||
| #region Kernel32 | ||
| public const UInt32 PROCESS_QUERY_INFORMATION = 0x400; | ||
| public const UInt32 PROCESS_VM_READ = 0x010; | ||
|
|
||
| [DllImport("kernel32.dll", SetLastError = true)] | ||
| public static extern bool QueryFullProcessImageName([In]IntPtr hProcess, [In]int dwFlags, [Out]StringBuilder lpExeName, ref int lpdwSize); | ||
|
|
||
| [DllImport("kernel32.dll", SetLastError = true)] | ||
| public static extern IntPtr OpenProcess( | ||
| UInt32 dwDesiredAccess, | ||
| [MarshalAs(UnmanagedType.Bool)] | ||
| Boolean bInheritHandle, | ||
| Int32 dwProcessId | ||
| ); | ||
| #endregion | ||
|
|
||
| /// <summary> | ||
| /// Gets the path of application running in foreground | ||
| /// </summary> | ||
| /// <param name="hWnd">Window handle</param> | ||
| /// <returns>Path of the application</returns> | ||
| public static string GetProcessName(IntPtr hWnd) | ||
| { | ||
| string processName = null; | ||
|
|
||
| hWnd = GetForegroundWindow(); | ||
|
|
||
| if (hWnd == IntPtr.Zero) | ||
| return null; | ||
|
|
||
| uint pID; | ||
| GetWindowThreadProcessId(hWnd, out pID); | ||
|
|
||
| IntPtr proc; | ||
| if ((proc = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, false, (int)pID)) == IntPtr.Zero) | ||
| return null; | ||
|
|
||
| int capacity = 2000; | ||
| StringBuilder sb = new StringBuilder(capacity); | ||
| QueryFullProcessImageName(proc, 0, sb, ref capacity); | ||
|
|
||
| processName = sb.ToString(0, capacity); | ||
|
|
||
| // UWP apps are wrapped in another app called, if this has focus then try and find the child UWP process | ||
| if (Path.GetFileName(processName).Equals("ApplicationFrameHost.exe")) | ||
| { | ||
| processName = UWP_AppName(hWnd, pID); | ||
| } | ||
|
|
||
| return processName; | ||
| } | ||
|
|
||
| #region Get UWP Application Name | ||
|
|
||
| /// <summary> | ||
| /// Find child process for uwp apps, edge, mail, etc. | ||
| /// </summary> | ||
| /// <param name="hWnd">hWnd</param> | ||
| /// <param name="pID">pID</param> | ||
| /// <returns>The application name of the UWP.</returns> | ||
| private static string UWP_AppName(IntPtr hWnd, uint pID) | ||
| { | ||
| WINDOWINFO windowinfo = new WINDOWINFO(); | ||
| windowinfo.ownerpid = pID; | ||
| windowinfo.childpid = windowinfo.ownerpid; | ||
|
|
||
| IntPtr pWindowinfo = Marshal.AllocHGlobal(Marshal.SizeOf(windowinfo)); | ||
|
|
||
| Marshal.StructureToPtr(windowinfo, pWindowinfo, false); | ||
|
|
||
| EnumWindowProc lpEnumFunc = new EnumWindowProc(EnumChildWindowsCallback); | ||
| EnumChildWindows(hWnd, lpEnumFunc, pWindowinfo); | ||
|
|
||
| windowinfo = (WINDOWINFO)Marshal.PtrToStructure(pWindowinfo, typeof(WINDOWINFO)); | ||
|
|
||
| IntPtr proc; | ||
| if ((proc = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, false, (int)windowinfo.childpid)) == IntPtr.Zero) | ||
| return null; | ||
|
|
||
| int capacity = 2000; | ||
| StringBuilder sb = new StringBuilder(capacity); | ||
| QueryFullProcessImageName(proc, 0, sb, ref capacity); | ||
|
|
||
| Marshal.FreeHGlobal(pWindowinfo); | ||
|
|
||
| return sb.ToString(0, capacity); | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Callback for enumerating the child windows. | ||
| /// </summary> | ||
| /// <param name="hWnd">hWnd</param> | ||
| /// <param name="lParam">lParam</param> | ||
| /// <returns>always <c>true</c>.</returns> | ||
| private static bool EnumChildWindowsCallback(IntPtr hWnd, IntPtr lParam) | ||
| { | ||
| WINDOWINFO info = (WINDOWINFO)Marshal.PtrToStructure(lParam, typeof(WINDOWINFO)); | ||
|
|
||
| uint pID; | ||
| GetWindowThreadProcessId(hWnd, out pID); | ||
|
|
||
| if (pID != info.ownerpid) | ||
| info.childpid = pID; | ||
|
|
||
| Marshal.StructureToPtr(info, lParam, true); | ||
|
|
||
| return true; | ||
| } | ||
| #endregion | ||
| } | ||
| } |
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Sometimes, while switching between applications/windows, GetForegroundWindow can return a handle of 0. GetProcessName then returns null, and the following
null.EndsWithcrashes the application. We need null safety on name, and should probably skip the GetProcessName work when handle is 0 as well.