--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/foosdk/sdk/foobar2000/SDK/modeless_dialog.h	Mon Jan 05 02:15:46 2026 -0500
@@ -0,0 +1,20 @@
+#pragma once
+#ifdef _WIN32
+//! Service for plugging your nonmodal dialog windows into main app loop to receive IsDialogMessage()-translated messages.\n
+//! Note that all methods are valid from main app thread only.\n
+//! Usage: call the static methods - modeless_dialog_manager::g_add / modeless_dialog_manager::g_remove.
+class NOVTABLE modeless_dialog_manager : public service_base {
+	FB2K_MAKE_SERVICE_COREAPI(modeless_dialog_manager);
+public:
+	//! Adds specified window to global list of windows to receive IsDialogMessage().
+	virtual void add(HWND p_wnd) = 0;
+	//! Removes specified window from global list of windows to receive IsDialogMessage().
+	virtual void remove(HWND p_wnd) = 0;
+
+	//! Static helper; see add().
+	static void g_add(HWND p_wnd) {modeless_dialog_manager::get()->add(p_wnd);}
+	//! Static helper; see remove().
+	static void g_remove(HWND p_wnd) {modeless_dialog_manager::get()->remove(p_wnd);}
+
+};
+#endif