fix(shim): allow GUI applications to attach to the shell's console when launched using the GUI shim

CHANGELOG.md

@@ -44,6 +44,7 @@
 - **scoop-checkup:** Don't throw 7zip error when external 7zip is used ([#5703](https://github.com/ScoopInstaller/Scoop/issues/5703))
 - **config:** Warn users about misconfigured GitHub token ([#5777](https://github.com/ScoopInstaller/Scoop/issues/5777))
 - **update/uninstall:** Remove items from PATH correctly ([#5833](https://github.com/ScoopInstaller/Scoop/issues/5833))
+- **shim:** Allow GUI applications to attach to the shell's console when launched using the GUI shim ([#5721](https://github.com/ScoopInstaller/Scoop/issues/5721))
 
 ### Performance Improvements
 

supporting/shimexe/bin/checksum.sha256

@@ -1 +1 @@
-9726c3a429009a5b22bd92cb8ab96724c670e164e7240e83f27b7c8b7bd1ca39 *shim.exe
+1e4a9e4b305ef78b375159b25e2f8a90243584efd56ed6994072a8dfc2147ade *shim.exe

supporting/shimexe/bin/checksum.sha512

@@ -1 +1 @@
-18a737674afde4d5e7e1647d8d1e98471bb260513c57739651f92fdf1647d76c92f0cd0a9bb458daf4eae4bdab9d31404162acf6d74a041e6415752b75d722e0 *shim.exe
+f580833905e45b02a433c03647fb0caa3692336c8bde9621c286684629c78d1c56a292bea2887ea0ae941b8beec50322f31975c23ab5644c2b85f3c2108f383d *shim.exe

supporting/shimexe/shim.cs

@@ -21,6 +21,12 @@ static extern bool CreateProcess(string lpApplicationName,
             out PROCESS_INFORMATION lpProcessInformation);
         const int ERROR_ELEVATION_REQUIRED = 740;
 
+        [DllImport("kernel32.dll", SetLastError = true)]
+        private static extern bool AttachConsole(int dwProcessId);
+
+        [DllImport("kernel32.dll", SetLastError = true)]
+        private static extern IntPtr GetConsoleWindow();
+
         [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
         struct STARTUPINFO {
             public Int32 cb;
@@ -89,7 +95,12 @@ static int Main(string[] args) {
                 cmd_args += pass_args;
             }
             if(!string.IsNullOrEmpty(cmd_args)) cmd_args = " " + cmd_args;
-            var cmd = "\"" + path + "\"" + cmd_args;
+            var cmd = path + cmd_args;
+
+            // Fix when GUI applications want to write to a console
+            if (GetConsoleWindow() == IntPtr.Zero) {
+                AttachConsole(-1);
+            }
 
             if(!CreateProcess(null, cmd, IntPtr.Zero, IntPtr.Zero,
                 bInheritHandles: true,