diff -r 4a258d47f964 -r b1ac0dd1d38b ui/winui/commandbar.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/winui/commandbar.cpp	Tue Oct 10 10:58:14 2023 +0200
@@ -0,0 +1,88 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2023 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "pch.h"
+
+#include "commandbar.h"
+
+#include "util.h"
+
+using namespace winrt;
+using namespace Microsoft::UI::Xaml;
+using namespace Microsoft::UI::Xaml::Controls;
+using namespace Microsoft::UI::Xaml::XamlTypeInfo;
+using namespace Microsoft::UI::Xaml::Markup;
+using namespace Windows::UI::Xaml::Interop;
+
+static void create_item(CommandBar cb, UiToolbarItemI* i);
+static void create_cmditem(CommandBar cb, UiToolbarItem* item);
+static void create_toggleitem(CommandBar cb, UiToolbarToggleItem* item);
+
+CommandBar ui_create_toolbar() {
+	CxList* defaults = uic_get_toolbar_defaults();
+	CommandBar cb = CommandBar();
+	CxIterator i = cxListIterator(defaults);
+	cx_foreach(char*, def, i) {
+		UiToolbarItemI* item = uic_toolbar_get_item(def);
+		if (!item) {
+			exit(-1); // TODO: maybe a error dialog?
+		}
+
+		create_item(cb, item);
+	}
+
+	return cb;
+}
+
+static void create_item(CommandBar cb, UiToolbarItemI* i) {
+	switch (i->type) {
+		case UI_TOOLBAR_ITEM: {
+			create_cmditem(cb, (UiToolbarItem*)i);
+			break;
+		}
+		case UI_TOOLBAR_TOGGLEITEM: {
+			create_toggleitem(cb, (UiToolbarToggleItem*)i);
+			break;
+		}
+	}
+}
+
+static void create_cmditem(CommandBar cb, UiToolbarItem* item) {
+	AppBarButton button = AppBarButton();
+	if (item->args.label) {
+		wchar_t* wlabel = str2wstr(item->args.label, nullptr);
+		button.Content(box_value(wlabel));
+		free(wlabel);
+	}
+
+	cb.PrimaryCommands().Append(button);
+}
+
+static void create_toggleitem(CommandBar cb, UiToolbarToggleItem* item) {
+
+}