Can't connect to X11 server on localhost

[hanskokx]

I'm trying to get the example code running on my development machine. Unfortunately, I'm receiving an error when doing so:

Unhandled Exception: SocketException: Connection failed (OS Error: Unix domain sockets are not available on this operating system.

Code example

```dart import 'package:x11/x11.dart'; Future main() async { final X11Client client = X11Client(); await client.connectToHost("localhost", 1); final X11ResourceId id = client.generateId(); client.createWindow( id, client.screens[0].window, const X11Rectangle(0, 0, 400, 300)); await client.changePropertyString(id, 'WM_NAME', 'x11`.dart'); client.mapWindow(id); client.setCloseDownMode(X11CloseDownMode.retainPermanent); await client.close(); } ```

Flutter/Dart version

``` Flutter 3.16.0 • channel stable • https://github.com/flutter/flutter.git Framework • revision db7ef5bf9f (9 days ago) • 2023-11-15 11:25:44 -0800 Engine • revision 74d16627b9 Tools • Dart 3.2.0 • DevTools 2.28.2 ```

System info

``` ,.=:!!t3Z3z., user@localhost :tt:::tt333EE3 ------------- Et:::ztt33EEEL @Ee., .., OS: Windows 11 Pro x86_64 ;tt:::tt333EE7 ;EEEEEEttttt33# Host: Microsoft Corporation Surface Book 3 :Et:::zt333EEQ. $EEEEEttttt33QL Kernel: 10.0.22631 it::::tt333EEF @EEEEEEttttt33F Uptime: 5 days, 11 hours, 55 mins ;3=*^```"*4EEV :EEEEEEttttt33@. Packages: 11 (scoop) ,.=::::!t=., ` @EEEEEEtttz33QF Shell: PowerShell 7.3.9 ;::::::::zt33) "4EEEtttji3P* Resolution: 3240x2160 :t::::::::tt33.:Z3z.. `` ,..g. DE: Aero i::::::::zt33F AEEEtttt::::ztF WM: Explorer ;:::::::::t33V ;EEEttttt::::t3 WM Theme: Custom E::::::::zt33L @EEEtttt::::z3F Terminal: Windows Terminal {3=*^```"*4E3) ;EEEtttt:::::tZ` CPU: Intel i7-1065G7 (8) @ 1.500GHz ` :EEEEtttt::::z7 GPU: Caption "VEzjt:;;z>*` GPU: Intel(R) Iris(R) Plus Graphics GPU: NVIDIA GeForce GTX 1660 Ti with Max-Q Design GPU Memory: 21143MiB / 32354MiB ```

`flutter run` output and error summary

``` > flutter run -d windows Launching lib\main.dart on Windows in debug mode... Building Windows application... 9.9s ✓ Built build\windows\x64\runner\Debug\x11_desktop.exe. [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: SocketException: Connection failed (OS Error: Unix domain sockets are not available on this operating system.), address = /tmp/.X11-unix/X1, port = 0 #0 _NativeSocket.startConnect (dart:io-patch/socket_patch.dart:721:35) #1 _NativeSocket.connect (dart:io-patch/socket_patch.dart:984:12) #2 _RawSocket.connect (dart:io-patch/socket_patch.dart:1902:26) #3 RawSocket.connect (dart:io-patch/socket_patch.dart:21:23) #4 Socket._connect (dart:io-patch/socket_patch.dart:2128:22) #5 Socket.connect (dart:io/socket.dart:758:21) #6 X11Client.connectToHost (package:x11/src/x11_client.dart:288:28) #7 main (package:x11_desktop/main.dart:6:16) #8 _runMain. (dart:ui/hooks.dart:301:23) #9 _delayEntrypointInvocation. (dart:isolate-patch/isolate_patch.dart:297:19) #10 _RawReceivePort._handleMessage (dart:isolate-patch/isolate_patch.dart:184:12) Syncing files to device Windows... 77ms Flutter run key commands. r Hot reload. 🔥🔥🔥 R Hot restart. h List all available interactive commands. d Detach (terminate "flutter run" but leave application running). c Clear the screen q Quit (terminate the application on the device). A Dart VM Service on Windows is available at: http://127.0.0.1:56873/R1MEbj4uwK4=/ ```

X11 server logs and information

``` Welcome to the VcXsrv X Server Vendor: The VcXsrv Project Release: 1.20.14.0 OS: Windows NT 6.2 build 9200 (64-bit) Contact: marha@users.sourceforge.net LoadPreferences: C:\Users\hans\AppData\Roaming\.XWinrc not found LoadPreferences: Loading C:\Program Files\VcXsrv\system.XWinrc (II) AIGLX: Testing pixelFormatIndex 1 (II) GLX: enabled GLX_SGI_make_current_read (II) GLX: enabled GLX_SGI_swap_control (II) GLX: enabled GLX_MESA_swap_control (II) GLX: enabled GLX_SGIX_pbuffer (II) GLX: enabled GLX_ARB_multisample (II) GLX: enabled GLX_SGIS_multisample (II) GLX: enabled GLX_ARB_fbconfig_float (II) GLX: enabled GLX_EXT_fbconfig_packed_float (II) GLX: enabled GLX_ARB_create_context (II) GLX: enabled GLX_ARB_create_context_profile (II) GLX: enabled GLX_ARB_create_context_robustness (II) GLX: enabled GLX_EXT_create_context_es2_profile (II) GLX: enabled GLX_ARB_framebuffer_sRGB (II) AIGLX: enabled GLX_MESA_copy_sub_buffer (II) 112 pixel formats reported by wglGetPixelFormatAttribivARB (II) GLX: Initialized Win32 native WGL GL provider for screen 0 winClipboardThreadProc - DISPLAY=127.0.0.1:1.0 winClipboardProc - xcb_connect () returned and successfully opened the display. Using Composite redirection ```

[robert-ancell]

Looks like you need to connect using TCP on windows (DISPLAY=127.0.0.1:1.0 in the X11 server log). This is in https://github.com/robert-ancell/x11.dart/issues/2

[hanskokx]

Since the API isn't documented, can you at least provide some instructions for that?

[robert-ancell]

This library won't work on Windows until #2 is implemented.

[hanskokx]

Ah. Thanks.