MyWPFUI.xaml

<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="My WPF UI" Height="300" Width="300">
    <StackPanel Margin="5">
        <StackPanel>
            <Label Content="Prename:" />
            <TextBox x:Name="preName" MinWidth="50"/>
        </StackPanel>
        <StackPanel>            
            <Label Content="Surename:" />
            <TextBlock x:Name="sureName" />
        </StackPanel>
    </StackPanel>
</Window>

wpfapp.clj

; ClojureCLR 1.4 
; to compile the wpfapp.clj into an executable run: "Clojure.Compile.exe wpfapp"
; see also: http://clojureclr.blogspot.de/2012/01/compiling-and-loading-in-clojureclr.html
; be aware of the namespace and the filename! atm it should stick to exactly the same name

(assembly-load-with-partial-name "PresentationFramework")
(assembly-load-with-partial-name "PresentationCore")
(assembly-load-with-partial-name "WindowsBase")
(assembly-load-with-partial-name "System.Xml")

(ns wpfapp 
  (:import (System.Windows Application Window))
  (:import (System.Windows.Threading Dispatcher DispatcherPriority))
  (:import (System.Threading ApartmentState ThreadStart Thread AutoResetEvent))
  (:import (System.IO File))
  (:import (System.Xml XmlReader))
  (:import (System.Windows.Markup XamlReader))
  (:import (System))
  (:gen-class))
    
(defn run[& args]
  (let [app (new Application)
        win (-> "MyWpfUI.xaml"
              File/OpenText
              XmlReader/Create
              XamlReader/Load)]
       (pr "running app!")
       (.Run app win)))


; STAThreadAttribute should instrcut the compiler to run the main thread 
; as STA. WPF and COM interop needs STA. For further details read
; STAThreadAttribute: http://msdn.microsoft.com/en-us/library/ms680112(v=vs.85).aspx
; STA: http://msdn.microsoft.com/en-us/library/ms680112(v=vs.85).aspx
; For Clojure.Compile.exe it doesn't work with gen-class and -main. 
; therefore I'm creating a new thread setting it to STA as workaround
; atm we're only able to run a console app!
; To be a first class .NET citizen the Clojure.Compile.exe
; should have options like C#:
;  - Console Application
;  - Class Library
;  - Windows Application

(defn sta-thread [func]
  (let [delegate (gen-delegate ThreadStart [] (func))
        thread (doto (new Thread delegate)
                 (.SetApartmentState ApartmentState/STA)
                 (.Start))]
    thread))

(defn -main [& args]
  (let [uithread (sta-thread (partial run args))]))