Hi,

I am using the Linux version of Geany in Windows 11 Version 21H2 (OS Build 22000.675) with WSL2 (so I am NOT using a virtual machine). My problem is that I can't paste from the Windows clipboard to Geany (but I can copy/paste from Geany to everywhere). I don't think it's about WSL2 since I can paste to Gedit and GNOME from Windows with no problem. 

My Geany and GTK++ version: geany 1.36 (built on 2020-03-22 with GTK 3.24.14, GLib 2.64.1) 

And if you find this useful:
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>>> geany -v
(geany:1162): GLib-DEBUG: 09:30:18.072: posix_spawn avoided (fd close requested)
(geany:1162): GLib-GIO-DEBUG: 09:30:18.083: _g_io_module_get_default: Found default implementation dconf (DConfSettingsBackend) for ‘gsettings-backend’
(geany:1162): dconf-DEBUG: 09:30:18.083: watch_fast: "/org/gnome/desktop/interface/" (establishing: 0, active: 0)
(geany:1162): dconf-DEBUG: 09:30:18.084: watch_fast: "/org/gnome/settings-daemon/peripherals/mouse/" (establishing: 0, active: 0)
(geany:1162): dconf-DEBUG: 09:30:18.084: watch_fast: "/org/gnome/desktop/sound/" (establishing: 0, active: 0)
(geany:1162): dconf-DEBUG: 09:30:18.084: watch_fast: "/org/gnome/desktop/privacy/" (establishing: 0, active: 0)
(geany:1162): dconf-DEBUG: 09:30:18.084: watch_fast: "/org/gnome/desktop/wm/preferences/" (establishing: 0, active: 0)
(geany:1162): dconf-DEBUG: 09:30:18.084: watch_fast: "/org/gnome/settings-daemon/plugins/xsettings/" (establishing: 0, active: 0)
(geany:1162): dconf-DEBUG: 09:30:18.084: watch_fast: "/org/gnome/desktop/a11y/" (establishing: 0, active: 0)
(geany:1162): dconf-DEBUG: 09:30:18.086: watch_established: "/org/gnome/desktop/interface/" (establishing: 1)
(geany:1162): dconf-DEBUG: 09:30:18.086: watch_established: "/org/gnome/settings-daemon/peripherals/mouse/" (establishing: 1)
(geany:1162): dconf-DEBUG: 09:30:18.086: watch_established: "/org/gnome/desktop/sound/" (establishing: 1)
(geany:1162): dconf-DEBUG: 09:30:18.086: watch_established: "/org/gnome/desktop/privacy/" (establishing: 1)
(geany:1162): dconf-DEBUG: 09:30:18.086: watch_established: "/org/gnome/desktop/wm/preferences/" (establishing: 1)
(geany:1162): dconf-DEBUG: 09:30:18.087: watch_established: "/org/gnome/settings-daemon/plugins/xsettings/" (establishing: 1)
(geany:1162): dconf-DEBUG: 09:30:18.087: watch_established: "/org/gnome/desktop/a11y/" (establishing: 1)
(geany:1162): GLib-DEBUG: 09:30:18.090: unsetenv() is not thread-safe and should not be used after threads are created
(geany:1162): GLib-GIO-DEBUG: 09:30:18.105: _g_io_module_get_default: Found default implementation local (GLocalVfs) for ‘gio-vfs’
Geany-INFO: 09:30:18.129: Geany 1.36, C.UTF-8
Geany-INFO: 09:30:18.129: GTK 3.24.20, GLib 2.64.6
Geany-INFO: 09:30:18.129: System data dir: /usr/share/geany
Geany-INFO: 09:30:18.129: User config dir: /home/mariopariona117/.config/geany
Geany-INFO: 09:30:18.225: Loaded GTK+ CSS theme '/usr/share/geany/geany.css'
Geany-INFO: 09:30:18.226: Loaded GTK+ CSS theme '/usr/share/geany/geany-3.20.css'
Geany-INFO: 09:30:18.227: Loaded GTK+ CSS theme '/home/mariopariona117/.config/geany/geany.css'
Geany-INFO: 09:30:18.235: System plugin path: /usr/lib/x86_64-linux-gnu/geany
Geany-INFO: 09:30:18.311: Added filetype CUDA (61).
Geany-INFO: 09:30:18.311: Added filetype Clojure (62).
Geany-INFO: 09:30:18.311: Added filetype TypeScript (63).
Geany-INFO: 09:30:18.311: Added filetype Genie (64).
Geany-INFO: 09:30:18.311: Added filetype Cython (65).
Geany-INFO: 09:30:18.311: Added filetype Groovy (66).
Geany-INFO: 09:30:18.311: Added filetype Swift (67).
Geany-INFO: 09:30:18.311: Added filetype Arduino (68).
Geany-INFO: 09:30:18.311: Added filetype JSON (69).
Geany-INFO: 09:30:18.311: Added filetype Nim (70).
Geany-INFO: 09:30:18.311: Added filetype Graphviz (71).
Geany-INFO: 09:30:18.311: Added filetype Scala (72).
Geany-INFO: 09:30:18.311: Added filetype Kotlin (73).
Geany-INFO: 09:30:18.323: Loaded libvte from libvte-2.91.so.0
Geany-INFO: 09:30:18.341: unknown : None (UTF-8)
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Find attached my geany.conf so you have more information to work with.

Hope you can help me,
Mario