diff --git a/Photographer.cs b/Photographer.cs
index 7c169e6..c4e9e7a 100644
--- a/Photographer.cs
+++ b/Photographer.cs
@@ -12,7 +12,8 @@ internal static class Photographer {
         HWND window = default;
         // last param could be "FINAL FANTASY XIV", but name is changeable
         while (!(window = PInvoke.FindWindowEx(default, window, "FFXIVGAME", null)).IsNull) {
-            var windowProc = PInvoke.GetWindowThreadProcessId(window);
+            var windowProc = 0u;
+            _ = PInvoke.GetWindowThreadProcessId(window, &windowProc);
             if (windowProc == 0) {
                 continue;
             }
diff --git a/Plugin.cs b/Plugin.cs
index 407b85e..a0bed2b 100644
--- a/Plugin.cs
+++ b/Plugin.cs
@@ -1,6 +1,7 @@
 using Dalamud.IoC;
 using Dalamud.Plugin;
 using Dalamud.Plugin.Services;
+using Screenie.Ui;
 
 namespace Screenie;
 
@@ -20,19 +21,22 @@ public class Plugin : IDalamudPlugin {
     internal IFramework Framework { get; init; }
 
     internal Configuration Config { get; }
+    internal PluginUi Ui { get; }
 
     private Command Command { get; }
 
     public Plugin() {
         this.Config = this.Interface!.GetPluginConfig() as Configuration ?? new Configuration();
+        this.Ui = new PluginUi(this);
         this.Command = new Command(this);
     }
 
+    public void Dispose() {
+        this.Command.Dispose();
+        this.Ui.Dispose();
+    }
+
     internal void SaveConfig() {
         this.Interface.SavePluginConfig(this.Config);
     }
-
-    public void Dispose() {
-        this.Command.Dispose();
-    }
 }
diff --git a/Ui/PluginUi.cs b/Ui/PluginUi.cs
new file mode 100644
index 0000000..72ce768
--- /dev/null
+++ b/Ui/PluginUi.cs
@@ -0,0 +1,101 @@
+using System.Numerics;
+using Dalamud.Interface;
+using Dalamud.Interface.Components;
+using Dalamud.Interface.ImGuiFileDialog;
+using Dalamud.Interface.Utility;
+using ImGuiNET;
+using Screenie.Util;
+
+namespace Screenie.Ui;
+
+internal class PluginUi : IDisposable {
+    private Plugin Plugin { get; }
+    private FileDialogManager FileDialogManager { get; }
+
+    internal PluginUi(Plugin plugin) {
+        this.Plugin = plugin;
+        this.FileDialogManager = new FileDialogManager();
+
+        this.Plugin.Interface.UiBuilder.Draw += this.Draw;
+    }
+
+    public void Dispose() {
+        this.Plugin.Interface.UiBuilder.Draw -= this.Draw;
+    }
+
+    private void Draw() {
+        try {
+            this.FileDialogManager.Draw();
+        } catch (Exception e) {
+            Plugin.Log.Error(e, "Error in FileDialogManager.Draw");
+        }
+
+        using var end = new OnDispose(ImGui.End);
+
+        ImGui.SetNextWindowSize(new Vector2(350, 500), ImGuiCond.FirstUseEver);
+        if (!ImGui.Begin(Plugin.Name)) {
+            return;
+        }
+
+        var anyChanged = false;
+        anyChanged |= this.DrawScreenshotsFolderInput();
+
+        ImGui.SetNextItemWidth(-1);
+        if (ImGui.BeginCombo("##file-format", Enum.GetName(this.Plugin.Config.SaveFormat))) {
+            using var endCombo = new OnDispose(ImGui.EndCombo);
+            foreach (var format in Enum.GetValues<Format>()) {
+                if (ImGui.Selectable(Enum.GetName(format), this.Plugin.Config.SaveFormat == format)) {
+                    this.Plugin.Config.SaveFormat = format;
+                    anyChanged = true;
+                }
+            }
+        }
+
+        var label = this.Plugin.Config.SaveFormat switch {
+            Format.Jpg => "Quality",
+            Format.Webp => "Quality",
+            Format.Png => "Compression level",
+            _ => "Unknown",
+        };
+
+        ImGui.TextUnformatted(label);
+        ImGui.SetNextItemWidth(-1);
+        anyChanged |= ImGui.SliderInt("##format-data", ref this.Plugin.Config.SaveFormatData, 0, 100);
+
+        if (anyChanged) {
+            this.Plugin.SaveConfig();
+        }
+    }
+
+    private bool DrawScreenshotsFolderInput() {
+        ImGui.TextUnformatted("Screenshots folder");
+
+        var changed = false;
+        ImGui.PushFont(UiBuilder.IconFont);
+        Vector2 size;
+        using (new OnDispose(ImGui.PopFont)) {
+            size = ImGuiHelpers.GetButtonSize(FontAwesomeIcon.Folder.ToIconString());
+        }
+
+        var availWidth = ImGui.GetContentRegionAvail().X;
+        ImGui.SetNextItemWidth(availWidth - size.X - ImGui.GetStyle().ItemSpacing.X);
+        if (ImGui.InputText("##save-directory", ref this.Plugin.Config.SaveDirectory, 1024, ImGuiInputTextFlags.EnterReturnsTrue)) {
+            changed = true;
+        }
+
+        ImGui.SameLine();
+
+        if (ImGuiComponents.IconButton(FontAwesomeIcon.Folder)) {
+            this.FileDialogManager.OpenFolderDialog("Choose screenshots folder", (b, s) => {
+                if (!b) {
+                    return;
+                }
+
+                this.Plugin.Config.SaveDirectory = s;
+                this.Plugin.SaveConfig();
+            });
+        }
+
+        return changed;
+    }
+}